Subtropics
Encyclopedia
Geographical zone
The five main latitude regions of the Earth's surface comprise geographical zones, divided by the major circles of latitude. The differences between them relate to climate, and the behaviour of the Sun...
and climatical zone of the Earth immediately north and south of the tropical
Tropics
The tropics is a region of the Earth surrounding the Equator. It is limited in latitude by the Tropic of Cancer in the northern hemisphere at approximately N and the Tropic of Capricorn in the southern hemisphere at S; these latitudes correspond to the axial tilt of the Earth...
zone, which is bounded by the Tropic of Cancer
Tropic of Cancer
The Tropic of Cancer, also referred to as the Northern tropic, is the circle of latitude on the Earth that marks the most northerly position at which the Sun may appear directly overhead at its zenith...
and the Tropic of Capricorn
Tropic of Capricorn
The Tropic of Capricorn, or Southern tropic, marks the most southerly latitude on the Earth at which the Sun can be directly overhead. This event occurs at the December solstice, when the southern hemisphere is tilted towards the Sun to its maximum extent.Tropic of Capricorn is one of the five...
, at latitude
Latitude
In geography, the latitude of a location on the Earth is the angular distance of that location south or north of the Equator. The latitude is an angle, and is usually measured in degrees . The equator has a latitude of 0°, the North pole has a latitude of 90° north , and the South pole has a...
s 23.5°N and 23.5°S. The term "subtropical" describes the climatic
Climate
Climate encompasses the statistics of temperature, humidity, atmospheric pressure, wind, rainfall, atmospheric particle count and other meteorological elemental measurements in a given region over long periods...
region
Region
Region is most commonly found as a term used in terrestrial and astrophysics sciences also an area, notably among the different sub-disciplines of geography, studied by regional geographers. Regions consist of subregions that contain clusters of like areas that are distinctive by their uniformity...
found adjacent to the tropics, usually between 23.5 and 40 degrees of latitude in both hemispheres.
Definition
According to climatologistClimatology
Climatology is the study of climate, scientifically defined as weather conditions averaged over a period of time, and is a branch of the atmospheric sciences...
Glenn G. Trewartha, a subtropical region should have at least eight months with a mean temperature of 10 °C (50 °F) or above. His revision of the Köppen climate classification
Köppen climate classification
The Köppen climate classification is one of the most widely used climate classification systems. It was first published by Crimea German climatologist Wladimir Köppen in 1884, with several later modifications by Köppen himself, notably in 1918 and 1936...
assigns to such areas the letter C, while others zones encompassed in the original Köppen group C class would be considered part of group.
American climatologist John F. Griffiths in his book Applied climatology described the subtropical zone as having a coldest month of between 6 °C (42.8 °F) and 18 °C (64.4 °F) and assigning to this group the letter B, while the original B group of Köppen taxonomy would be spread over the various temperature-based groups.
German climatologists Carl Troll and Karlheinz Paffen defined warmgemäßigte Zonen ("Warm temperate zones") plain and hilly lands having an average temperature of the coldest month between 2 °C (35.6 °F) and 13 °C (55.4 °F) in Northern Hemisphere
Northern Hemisphere
The Northern Hemisphere is the half of a planet that is north of its equator—the word hemisphere literally means “half sphere”. It is also that half of the celestial sphere north of the celestial equator...
and between 6 °C (42.8 °F) and 13 °C (55.4 °F) in Southern Hemisphere
Southern Hemisphere
The Southern Hemisphere is the part of Earth that lies south of the equator. The word hemisphere literally means 'half ball' or "half sphere"...
, excluding oceanic
Oceanic climate
An oceanic climate, also called marine west coast climate, maritime climate, Cascadian climate and British climate for Köppen climate classification Cfb and subtropical highland for Köppen Cfb or Cwb, is a type of climate typically found along the west coasts at the middle latitudes of some of the...
and continental climate
Continental climate
Continental climate is a climate characterized by important annual variation in temperature due to the lack of significant bodies of water nearby...
s. According to Troll-Paffen climate classification, generally exist one a large subtropical zone named Warmgemäßigt-subtropisches Zonenklima (en: warm-temperate subtropical zone) divided into seven smaller areas.
According to E. Neef climate classification subtropical zone divided into two parts: Winterregenklima der Westseiten (en: Rainy winters of the west sides) and Subtropisches Ostseitenklima (en: Eastern subtropical climate).
According to Wilhelm Lauer & Peter Frankenberg climate classification subtropical zone divided into three parts: hoch-continental (high-continental), kontinental (continental) and maritim (maritime).
According to Siegmund/Frankenberg climate classification, subtropical is one of six climate zones in the world.
Characteristics
In subtropical climates the winters are relatively warm-mild, but not as hot as the summer season. These climates rarely—if ever—see frost or snow and plants such as palm, citrus and many broadleaf evergreenEvergreen
In botany, an evergreen plant is a plant that has leaves in all seasons. This contrasts with deciduous plants, which completely lose their foliage during the winter or dry season.There are many different kinds of evergreen plants, both trees and shrubs...
s flourish, in contrast to the hardier deciduous
Deciduous
Deciduous means "falling off at maturity" or "tending to fall off", and is typically used in reference to trees or shrubs that lose their leaves seasonally, and to the shedding of other plant structures such as petals after flowering or fruit when ripe...
and coniferous trees which dominate midlatitude climates. As one moves toward the tropical side the slight winter cool season disappears altogether, while at the poleward threshold of the subtropics the winters become much cooler.
Rainfall patterns vary widely throughout the subtropics including hot deserts, savanna
Savanna
A savanna, or savannah, is a grassland ecosystem characterized by the trees being sufficiently small or widely spaced so that the canopy does not close. The open canopy allows sufficient light to reach the ground to support an unbroken herbaceous layer consisting primarily of C4 grasses.Some...
s, monsoon forests, humid forests and the warmer parts of the Mediterranean climate zone. Subtropical regions include most of California and southern Europe (Mediterranean or dry-summer subtropical climate), the low deserts of the Southwest USA (hot arid type), the Gulf Coast and most of Florida (humid subtropical climate), northern India (monsoon
Monsoon
Monsoon is traditionally defined as a seasonal reversing wind accompanied by corresponding changes in precipitation, but is now used to describe seasonal changes in atmospheric circulation and precipitation associated with the asymmetric heating of land and sea...
), southeast China (humid), the middle part of South America (varied), much of Australia (varied) and coastal South Africa.
Subtropical highland variety (Cwb)
The Subtropical Highland variety (Köppen climate classificationKöppen climate classification
The Köppen climate classification is one of the most widely used climate classification systems. It was first published by Crimea German climatologist Wladimir Köppen in 1884, with several later modifications by Köppen himself, notably in 1918 and 1936...
: Cwb) of the oceanic climate exists in elevated portions of the world that are either within the tropics or subtropics, though it is typically found in mountainous locations in some tropical countries. Despite the latitude
Latitude
In geography, the latitude of a location on the Earth is the angular distance of that location south or north of the Equator. The latitude is an angle, and is usually measured in degrees . The equator has a latitude of 0°, the North pole has a latitude of 90° north , and the South pole has a...
, due to the higher altitude
Altitude
Altitude or height is defined based on the context in which it is used . As a general definition, altitude is a distance measurement, usually in the vertical or "up" direction, between a reference datum and a point or object. The reference datum also often varies according to the context...
s of these regions, it tends to share characteristics with oceanic climates, though it also tends to experience noticeably drier weather during the "low-sun" season.
In locations outside the tropics, other than the drying trend in the winter, Subtropical Highland climates tend to be essentially identical to an oceanic climate, complete with mild summers, noticeably cooler winters and in some instances, some snow
Snow
Snow is a form of precipitation within the Earth's atmosphere in the form of crystalline water ice, consisting of a multitude of snowflakes that fall from clouds. Since snow is composed of small ice particles, it is a granular material. It has an open and therefore soft structure, unless packed by...
fall. In the tropics, a Subtropical Highland climate tends to feature spring
Spring (season)
Spring is one of the four temperate seasons, the transition period between winter and summer. Spring and "springtime" refer to the season, and broadly to ideas of rebirth, renewal and regrowth. The specific definition of the exact timing of "spring" varies according to local climate, cultures and...
-like weather year-round. Temperatures here remain relatively constant throughout the year and snowfall is seldom seen. Areas with this climate feature monthly averages below 22 °C (71.6 °F) but above -3 C (or 0 °C (32 °F) using American standards). At least one month's average temperature is below 18 °C (64.4 °F). Without the elevation
Elevation
The elevation of a geographic location is its height above a fixed reference point, most commonly a reference geoid, a mathematical model of the Earth's sea level as an equipotential gravitational surface ....
, many of these regions would likely feature either tropical
Tropical climate
A tropical climate is a climate of the tropics. In the Köppen climate classification it is a non-arid climate in which all twelve months have mean temperatures above...
or humid subtropical climates. These regions usually carry a Cwb or Cfb designation
Designation
Designation may refer to:* Professional certification* Designation , an official classification determined by a government agency or historical society- See also :* United States Department of Defense aerospace vehicle designation...
. .
This type of climate exists in parts of east, south and south-eastern Africa
Africa
Africa is the world's second largest and second most populous continent, after Asia. At about 30.2 million km² including adjacent islands, it covers 6% of the Earth's total surface area and 20.4% of the total land area...
, some mountainous areas across southern Europe
Southern Europe
The term Southern Europe, at its most general definition, is used to mean "all countries in the south of Europe". However, the concept, at different times, has had different meanings, providing additional political, linguistic and cultural context to the definition in addition to the typical...
, sections of mountainous Latin America
Latin America
Latin America is a region of the Americas where Romance languages – particularly Spanish and Portuguese, and variably French – are primarily spoken. Latin America has an area of approximately 21,069,500 km² , almost 3.9% of the Earth's surface or 14.1% of its land surface area...
, some mountainous areas across Southeast Asia
Southeast Asia
Southeast Asia, South-East Asia, South East Asia or Southeastern Asia is a subregion of Asia, consisting of the countries that are geographically south of China, east of India, west of New Guinea and north of Australia. The region lies on the intersection of geological plates, with heavy seismic...
, higher elevations of the southern Appalachians
Appalachian Mountains
The Appalachian Mountains #Whether the stressed vowel is or ,#Whether the "ch" is pronounced as a fricative or an affricate , and#Whether the final vowel is the monophthong or the diphthong .), often called the Appalachians, are a system of mountains in eastern North America. The Appalachians...
, and parts of the Himalayas
Himalayas
The Himalaya Range or Himalaya Mountains Sanskrit: Devanagari: हिमालय, literally "abode of snow"), usually called the Himalayas or Himalaya for short, is a mountain range in Asia, separating the Indian subcontinent from the Tibetan Plateau...
. It also occurs in a few areas of Australia
Australia
Australia , officially the Commonwealth of Australia, is a country in the Southern Hemisphere comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands in the Indian and Pacific Oceans. It is the world's sixth-largest country by total area...
, although average high temperatures during summers there tend to be higher and the climate drier than is typical of Subtropical Highland Climates, with maximums sometimes exceeding 40 °C (104 °F).
Mediterranean climate
The Mediterranean climate (Köppen climate classificationKöppen climate classification
The Köppen climate classification is one of the most widely used climate classification systems. It was first published by Crimea German climatologist Wladimir Köppen in 1884, with several later modifications by Köppen himself, notably in 1918 and 1936...
: Csa) is a particular variety of the subtropical climate found around the Mediterranean Sea
Mediterranean Sea
The Mediterranean Sea is a sea connected to the Atlantic Ocean surrounded by the Mediterranean region and almost completely enclosed by land: on the north by Anatolia and Europe, on the south by North Africa, and on the east by the Levant...
, the largest area where this climate type is found, but it also prevails in much of California
California
California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...
, in parts of Western
Western Australia
Western Australia is a state of Australia, occupying the entire western third of the Australian continent. It is bounded by the Indian Ocean to the north and west, the Great Australian Bight and Indian Ocean to the south, the Northern Territory to the north-east and South Australia to the south-east...
and South Australia
South Australia
South Australia is a state of Australia in the southern central part of the country. It covers some of the most arid parts of the continent; with a total land area of , it is the fourth largest of Australia's six states and two territories.South Australia shares borders with all of the mainland...
, in southwestern South Africa
South Africa
The Republic of South Africa is a country in southern Africa. Located at the southern tip of Africa, it is divided into nine provinces, with of coastline on the Atlantic and Indian oceans...
, in isolated regions of Central Asia
Central Asia
Central Asia is a core region of the Asian continent from the Caspian Sea in the west, China in the east, Afghanistan in the south, and Russia in the north...
, and in parts of central Chile
Chile
Chile ,officially the Republic of Chile , is a country in South America occupying a long, narrow coastal strip between the Andes mountains to the east and the Pacific Ocean to the west. It borders Peru to the north, Bolivia to the northeast, Argentina to the east, and the Drake Passage in the far...
.
The climate is characterized by warm to hot, dry summers and mild to cool, wet winters. Mediterranean climate zones are associated with the five large subtropical high pressure cells of the oceans, the Azores High
Azores High
The Azores High is a large subtropical semi-permanent centre of high atmospheric pressure found near the Azores in the Atlantic Ocean, at the Horse latitudes...
, South Atlantic High
South Atlantic High
South Atlantic High is a semipermanent pressure high centered at about 25°S, 15°W, in the Atlantic Ocean. It is also called the St. Helena High. It can stretch thousands of miles across the South Atlantic affecting shipping. Sailors try to find a "corridor" through using the low pressure systems...
, North Pacific High
North Pacific High
The North Pacific High is a semi-permanent, subtropical anticyclone located in the north east of the Pacific Ocean north east of Hawaii. It is strongest during the northern hemisphere summer, and shifts towards the equator during the winter when the Aleutian Low becomes more active....
, South Pacific High, and the Indian Ocean High which cause the dry summers.
Humid subtropical climate
The humid subtropical climate is a subtropical climate type characterized by hot, humid summers and warm to cool winters. The average annual precipitation may either be evenly distributed throughout the year (Köppen climate classificationKöppen climate classification
The Köppen climate classification is one of the most widely used climate classification systems. It was first published by Crimea German climatologist Wladimir Köppen in 1884, with several later modifications by Köppen himself, notably in 1918 and 1936...
: Cfa) or marked by a dry season or drying trend during winter (Köppen climate classification: Cwa).
Humid subtropical climates lie on the southeast side of all continent
Continent
A continent is one of several very large landmasses on Earth. They are generally identified by convention rather than any strict criteria, with seven regions commonly regarded as continents—they are : Asia, Africa, North America, South America, Antarctica, Europe, and Australia.Plate tectonics is...
s, generally between latitudes 25° and 40° north and south. However, in Europe, it extends above latitude 45° N, covering regions such as the Po Valley
Po Valley
The Po Valley, Po Plain, Plain of the Po, or Padan Plain is a major geographical feature of Italy. It extends approximately in an east-west direction, with an area of 46,000 km² including its Venetic extension not actually related to the Po River basin; it runs from the Western Alps to the...
of Italy
Italy
Italy , officially the Italian Republic languages]] under the European Charter for Regional or Minority Languages. In each of these, Italy's official name is as follows:;;;;;;;;), is a unitary parliamentary republic in South-Central Europe. To the north it borders France, Switzerland, Austria and...
, which includes Venice
Venice
Venice is a city in northern Italy which is renowned for the beauty of its setting, its architecture and its artworks. It is the capital of the Veneto region...
, the Toulouse
Toulouse
Toulouse is a city in the Haute-Garonne department in southwestern FranceIt lies on the banks of the River Garonne, 590 km away from Paris and half-way between the Atlantic Ocean and the Mediterranean Sea...
region of France
France
The French Republic , The French Republic , The French Republic , (commonly known as France , is a unitary semi-presidential republic in Western Europe with several overseas territories and islands located on other continents and in the Indian, Pacific, and Atlantic oceans. Metropolitan France...
, and along the Black Sea
Black Sea
The Black Sea is bounded by Europe, Anatolia and the Caucasus and is ultimately connected to the Atlantic Ocean via the Mediterranean and the Aegean seas and various straits. The Bosphorus strait connects it to the Sea of Marmara, and the strait of the Dardanelles connects that sea to the Aegean...
coast. In East Asia
East Asia
East Asia or Eastern Asia is a subregion of Asia that can be defined in either geographical or cultural terms...
, the influence of the Siberian anticyclone depresses winter temperatures, pushing the southern boundary of this regime to around China
China
Chinese civilization may refer to:* China for more general discussion of the country.* Chinese culture* Greater China, the transnational community of ethnic Chinese.* History of China* Sinosphere, the area historically affected by Chinese culture...
's Hainan Island, at latitude 20° N.
In subtropical climates the winters are relatively warm-mild, but not hot as the summer season. These climates rarely—if ever—see frost or snow. As one moves toward the tropical side the slight winter cool season disappears altogether, while at the poleward threshold of the subtropics the winters become much cooler.
Subtropical areas
Examples of subtropical cities and areas around the world include (see map above for more details):In Africa
- North Africa: AlgiersAlgiers' is the capital and largest city of Algeria. According to the 1998 census, the population of the city proper was 1,519,570 and that of the urban agglomeration was 2,135,630. In 2009, the population was about 3,500,000...
, AlgeriaAlgeriaAlgeria , officially the People's Democratic Republic of Algeria , also formally referred to as the Democratic and Popular Republic of Algeria, is a country in the Maghreb region of Northwest Africa with Algiers as its capital.In terms of land area, it is the largest country in Africa and the Arab...
; AlexandriaAlexandriaAlexandria is the second-largest city of Egypt, with a population of 4.1 million, extending about along the coast of the Mediterranean Sea in the north central part of the country; it is also the largest city lying directly on the Mediterranean coast. It is Egypt's largest seaport, serving...
, EgyptEgyptEgypt , officially the Arab Republic of Egypt, Arabic: , is a country mainly in North Africa, with the Sinai Peninsula forming a land bridge in Southwest Asia. Egypt is thus a transcontinental country, and a major power in Africa, the Mediterranean Basin, the Middle East and the Muslim world...
; CasablancaCasablancaCasablanca is a city in western Morocco, located on the Atlantic Ocean. It is the capital of the Grand Casablanca region.Casablanca is Morocco's largest city as well as its chief port. It is also the biggest city in the Maghreb. The 2004 census recorded a population of 2,949,805 in the prefecture...
, MoroccoMoroccoMorocco , officially the Kingdom of Morocco , is a country located in North Africa. It has a population of more than 32 million and an area of 710,850 km², and also primarily administers the disputed region of the Western Sahara...
; TripoliTripoliTripoli is the capital and largest city in Libya. It is also known as Western Tripoli , to distinguish it from Tripoli, Lebanon. It is affectionately called The Mermaid of the Mediterranean , describing its turquoise waters and its whitewashed buildings. Tripoli is a Greek name that means "Three...
, LibyaLibyaLibya is an African country in the Maghreb region of North Africa bordered by the Mediterranean Sea to the north, Egypt to the east, Sudan to the southeast, Chad and Niger to the south, and Algeria and Tunisia to the west....
; TunisTunisTunis is the capital of both the Tunisian Republic and the Tunis Governorate. It is Tunisia's largest city, with a population of 728,453 as of 2004; the greater metropolitan area holds some 2,412,500 inhabitants....
, TunisiaTunisiaTunisia , officially the Tunisian RepublicThe long name of Tunisia in other languages used in the country is: , is the northernmost country in Africa. It is a Maghreb country and is bordered by Algeria to the west, Libya to the southeast, and the Mediterranean Sea to the north and east. Its area...
; - Southern Africa: Cape TownCape TownCape Town is the second-most populous city in South Africa, and the provincial capital and primate city of the Western Cape. As the seat of the National Parliament, it is also the legislative capital of the country. It forms part of the City of Cape Town metropolitan municipality...
, DurbanDurbanDurban is the largest city in the South African province of KwaZulu-Natal and the third largest city in South Africa. It forms part of the eThekwini metropolitan municipality. Durban is famous for being the busiest port in South Africa. It is also seen as one of the major centres of tourism...
and East London; MaseruMaseruMaseru is the capital of Lesotho. It is also the capital of the Maseru District. Located on the Caledon River, bordering South Africa, Maseru is Lesotho's only sizable city, with a population of approximately 227,880 . The city was established as a police camp and assigned as the capital after the...
, LesothoLesothoLesotho , officially the Kingdom of Lesotho, is a landlocked country and enclave, surrounded by the Republic of South Africa. It is just over in size with a population of approximately 2,067,000. Its capital and largest city is Maseru. Lesotho is a member of the Commonwealth of Nations. The name...
and NatalNatal, South AfricaNatal is a region in South Africa. It stretches between the Indian Ocean in the south and east, the Drakensberg in the west, and the Lebombo Mountains in the north. The main cities are Pietermaritzburg and Durban...
, South Africa. - The part of Atlantic Ocean, areas on the islands of Europe around the coast of Africa: Las Palmas, Spain; FunchalFunchalFunchal is the largest city, the municipal seat and the capital of Portugal's Autonomous Region of Madeira. The city has a population of 112,015 and has been the capital of Madeira for more than five centuries.-Etymology:...
, Portugal.
In the Americas
- United States: Atlanta; Austin, TexasAustin, TexasAustin is the capital city of the U.S. state of :Texas and the seat of Travis County. Located in Central Texas on the eastern edge of the American Southwest, it is the fourth-largest city in Texas and the 14th most populous city in the United States. It was the third-fastest-growing large city in...
; Birmingham, AlabamaBirmingham, AlabamaBirmingham is the largest city in Alabama. The city is the county seat of Jefferson County. According to the 2010 United States Census, Birmingham had a population of 212,237. The Birmingham-Hoover Metropolitan Area, in estimate by the U.S...
; Charleston, South CarolinaCharleston, South CarolinaCharleston is the second largest city in the U.S. state of South Carolina. It was made the county seat of Charleston County in 1901 when Charleston County was founded. The city's original name was Charles Towne in 1670, and it moved to its present location from a location on the west bank of the...
, Charlotte, North CarolinaCharlotte, North CarolinaCharlotte is the largest city in the U.S. state of North Carolina and the seat of Mecklenburg County. In 2010, Charlotte's population according to the US Census Bureau was 731,424, making it the 17th largest city in the United States based on population. The Charlotte metropolitan area had a 2009...
; Columbia, South CarolinaColumbia, South CarolinaColumbia is the state capital and largest city in the U.S. state of South Carolina. The population was 129,272 according to the 2010 census. Columbia is the county seat of Richland County, but a portion of the city extends into neighboring Lexington County. The city is the center of a metropolitan...
; Dallas; Houston; Jacksonville, FloridaJacksonville, FloridaJacksonville is the largest city in the U.S. state of Florida in terms of both population and land area, and the largest city by area in the contiguous United States. It is the county seat of Duval County, with which the city government consolidated in 1968...
; Las Vegas, NevadaLas Vegas, NevadaLas Vegas is the most populous city in the U.S. state of Nevada and is also the county seat of Clark County, Nevada. Las Vegas is an internationally renowned major resort city for gambling, shopping, and fine dining. The city bills itself as The Entertainment Capital of the World, and is famous...
; Los AngelesLos ÁngelesLos Ángeles is the capital of the province of Biobío, in the commune of the same name, in Region VIII , in the center-south of Chile. It is located between the Laja and Biobío rivers. The population is 123,445 inhabitants...
; Little Rock; Memphis, TennesseeMemphis, TennesseeMemphis is a city in the southwestern corner of the U.S. state of Tennessee, and the county seat of Shelby County. The city is located on the 4th Chickasaw Bluff, south of the confluence of the Wolf and Mississippi rivers....
; Nashville;St. George, UtahSt. George, UtahSt. George is a city located in the southwestern part of the U.S. state of Utah, and the county seat of Washington County, Utah. It is the principal city of and is included in the St. George, Utah, Metropolitan Statistical Area. The city is 119 miles northeast of Las Vegas, Nevada, and 303 miles ...
; New Orleans; Norfolk, VirginiaNorfolk, VirginiaNorfolk is an independent city in the Commonwealth of Virginia in the United States. With a population of 242,803 as of the 2010 Census, it is Virginia's second-largest city behind neighboring Virginia Beach....
; Phoenix, ArizonaPhoenix, ArizonaPhoenix is the capital, and largest city, of the U.S. state of Arizona, as well as the sixth most populated city in the United States. Phoenix is home to 1,445,632 people according to the official 2010 U.S. Census Bureau data...
; Raleigh, North CarolinaRaleigh, North CarolinaRaleigh is the capital and the second largest city in the state of North Carolina as well as the seat of Wake County. Raleigh is known as the "City of Oaks" for its many oak trees. According to the U.S. Census Bureau, the city's 2010 population was 403,892, over an area of , making Raleigh...
; Sacramento, CaliforniaSacramento, CaliforniaSacramento is the capital city of the U.S. state of California and the county seat of Sacramento County. It is located at the confluence of the Sacramento River and the American River in the northern portion of California's expansive Central Valley. With a population of 466,488 at the 2010 census,...
; San Antonio; San Diego; San Jose, CaliforniaSan Jose, CaliforniaSan Jose is the third-largest city in California, the tenth-largest in the U.S., and the county seat of Santa Clara County which is located at the southern end of San Francisco Bay...
; San Francisco Bay AreaSan Francisco Bay AreaThe San Francisco Bay Area, commonly known as the Bay Area, is a populated region that surrounds the San Francisco and San Pablo estuaries in Northern California. The region encompasses metropolitan areas of San Francisco, Oakland, and San Jose, along with smaller urban and rural areas...
; Savannah, GeorgiaSavannah, GeorgiaSavannah is the largest city and the county seat of Chatham County, in the U.S. state of Georgia. Established in 1733, the city of Savannah was the colonial capital of the Province of Georgia and later the first state capital of Georgia. Today Savannah is an industrial center and an important...
; Tampa, FloridaTampa, FloridaTampa is a city in the U.S. state of Florida. It serves as the county seat for Hillsborough County. Tampa is located on the west coast of Florida. The population of Tampa in 2010 was 335,709....
; Tucson, ArizonaTucson, ArizonaTucson is a city in and the county seat of Pima County, Arizona, United States. The city is located 118 miles southeast of Phoenix and 60 miles north of the U.S.-Mexico border. The 2010 United States Census puts the city's population at 520,116 with a metropolitan area population at 1,020,200...
; with Philadelphia and New York CityNew York CityNew York is the most populous city in the United States and the center of the New York Metropolitan Area, one of the most populous metropolitan areas in the world. New York exerts a significant impact upon global commerce, finance, media, art, fashion, research, technology, education, and...
barely making qualifications on the northern extent.
- Mexico: MonterreyMonterreyMonterrey , is the capital city of the northeastern state of Nuevo León in the country of Mexico. The city is anchor to the third-largest metropolitan area in Mexico and is ranked as the ninth-largest city in the nation. Monterrey serves as a commercial center in the north of the country and is the...
, HermosilloHermosilloHermosillo is a city and municipality located centrally in the northwestern Mexican state of Sonora. It is the capital and main economic center for the state and region. It contains almost all of the state's manufacturing and has thirty percent of its population...
, Cd. Juárez, TijuanaTijuanaTijuana is the largest city on the Baja California Peninsula and center of the Tijuana metropolitan area, part of the international San Diego–Tijuana metropolitan area. An industrial and financial center of Mexico, Tijuana exerts a strong influence on economics, education, culture, art, and politics...
, MexicaliMexicaliMexicali is the capital of the State of Baja California, seat of the Municipality of Mexicali, and 2nd largest city in Baja California. The City of Mexicali has a population of 689,775, according to the 2010 census, while the population of the entire metropolitan area reaches 936,826.The city...
. - Brazil: São PauloSão Paulo (state)São Paulo is a state in Brazil. It is the major industrial and economic powerhouse of the Brazilian economy. Named after Saint Paul, São Paulo has the largest population, industrial complex, and economic production in the country. It is the richest state in Brazil...
, Santa CatarinaSanta Catarina (state)Santa Catarina is a state in southern Brazil with one of the highest standards of living in Latin America. Its capital is Florianópolis, which mostly lies on the Santa Catarina Island. Neighbouring states are Rio Grande do Sul to the south and Paraná to the north. It is bounded on the east by...
, Rio Grande do SulRio Grande do SulRio Grande do Sul is the southernmost state in Brazil, and the state with the fifth highest Human Development Index in the country. In this state is located the southernmost city in the country, Chuí, on the border with Uruguay. In the region of Bento Gonçalves and Caxias do Sul, the largest wine...
, ParanáParaná (state)Paraná is one of the states of Brazil, located in the South of the country, bordered on the north by São Paulo state, on the east by the Atlantic Ocean, on the south by Santa Catarina state and the Misiones Province of Argentina, and on the west by Mato Grosso do Sul and the republic of Paraguay,...
, Mato Grosso do SulMato Grosso do SulMato Grosso do Sul is one of the states of Brazil.Neighboring Brazilian states are Mato Grosso, Goiás, Minas Gerais, São Paulo and Paraná. It also borders the countries of Paraguay and Bolivia to the west. The economy of the state is largely based on agriculture and cattle-raising...
. - South America: Buenos AiresBuenos AiresBuenos Aires is the capital and largest city of Argentina, and the second-largest metropolitan area in South America, after São Paulo. It is located on the western shore of the estuary of the Río de la Plata, on the southeastern coast of the South American continent...
, ArgentinaArgentinaArgentina , officially the Argentine Republic , is the second largest country in South America by land area, after Brazil. It is constituted as a federation of 23 provinces and an autonomous city, Buenos Aires...
; MontevideoMontevideoMontevideo is the largest city, the capital, and the chief port of Uruguay. The settlement was established in 1726 by Bruno Mauricio de Zabala, as a strategic move amidst a Spanish-Portuguese dispute over the platine region, and as a counter to the Portuguese colony at Colonia del Sacramento...
, UruguayUruguayUruguay ,officially the Oriental Republic of Uruguay,sometimes the Eastern Republic of Uruguay; ) is a country in the southeastern part of South America. It is home to some 3.5 million people, of whom 1.8 million live in the capital Montevideo and its metropolitan area...
; Santiago, ChileSantiago, ChileSantiago , also known as Santiago de Chile, is the capital and largest city of Chile, and the center of its largest conurbation . It is located in the country's central valley, at an elevation of above mean sea level...
; ValparaísoValparaísoValparaíso is a city and commune of Chile, center of its third largest conurbation and one of the country's most important seaports and an increasing cultural center in the Southwest Pacific hemisphere. The city is the capital of the Valparaíso Province and the Valparaíso Region...
, ChileChileChile ,officially the Republic of Chile , is a country in South America occupying a long, narrow coastal strip between the Andes mountains to the east and the Pacific Ocean to the west. It borders Peru to the north, Bolivia to the northeast, Argentina to the east, and the Drake Passage in the far...
; LimaLimaLima is the capital and the largest city of Peru. It is located in the valleys of the Chillón, Rímac and Lurín rivers, in the central part of the country, on a desert coast overlooking the Pacific Ocean. Together with the seaport of Callao, it forms a contiguous urban area known as the Lima...
, PerúPeruPeru , officially the Republic of Peru , is a country in western South America. It is bordered on the north by Ecuador and Colombia, on the east by Brazil, on the southeast by Bolivia, on the south by Chile, and on the west by the Pacific Ocean....
; and Asunción, Paraguay.
In Eurasia
- AzerbaijanAzerbaijanAzerbaijan , officially the Republic of Azerbaijan is the largest country in the Caucasus region of Eurasia. Located at the crossroads of Western Asia and Eastern Europe, it is bounded by the Caspian Sea to the east, Russia to the north, Georgia to the northwest, Armenia to the west, and Iran to...
: BakuBakuBaku , sometimes spelled as Baki or Bakou, is the capital and largest city of Azerbaijan, as well as the largest city on the Caspian Sea and of the Caucasus region. It is located on the southern shore of the Absheron Peninsula, which projects into the Caspian Sea. The city consists of two principal... - Mainland China: NanjingNanjing' is the capital of Jiangsu province in China and has a prominent place in Chinese history and culture, having been the capital of China on several occasions...
, ShanghaiShanghaiShanghai is the largest city by population in China and the largest city proper in the world. It is one of the four province-level municipalities in the People's Republic of China, with a total population of over 23 million as of 2010...
, HangzhouHangzhouHangzhou , formerly transliterated as Hangchow, is the capital and largest city of Zhejiang Province in Eastern China. Governed as a sub-provincial city, and as of 2010, its entire administrative division or prefecture had a registered population of 8.7 million people...
, HefeiHefeiHefei is the capital and largest city of Anhui Province in Eastern China. A prefecture-level city, it is the political, economic, and cultural centre of Anhui...
, NanchangNanchangNanchang is the capital of Jiangxi Province in southeastern China. It is located in the north-central portion of the province. As it is bounded on the west by the Jiuling Mountains, and on the east by Poyang Lake, it is famous for its scenery, rich history and cultural sites...
, FuzhouFuzhouFuzhou is the capital and one of the largest cities in Fujian Province, People's Republic of China. Along with the many counties of Ningde, those of Fuzhou are considered to constitute the Mindong linguistic and cultural area....
, XiamenXiamenXiamen , also known as Amoy , is a major city on the southeast coast of the People's Republic of China. It is administered as a sub-provincial city of Fujian province with an area of and population of 3.53 million...
, ShenzhenShenzhenShenzhen is a major city in the south of Southern China's Guangdong Province, situated immediately north of Hong Kong. The area became China's first—and one of the most successful—Special Economic Zones...
, GuangzhouGuangzhouGuangzhou , known historically as Canton or Kwangchow, is the capital and largest city of the Guangdong province in the People's Republic of China. Located in southern China on the Pearl River, about north-northwest of Hong Kong, Guangzhou is a key national transportation hub and trading port...
, NanningNanningNanning is the capital of the Guangxi Zhuang Autonomous Region in southern China. It is known as the "Green City" because of its abundance of lush tropical foliage.-History:...
, Changsha, WuhanWuhanWuhan is the capital of Hubei province, People's Republic of China, and is the most populous city in Central China. It lies at the east of the Jianghan Plain, and the intersection of the middle reaches of the Yangtze and Han rivers...
, ChongqingChongqingChongqing is a major city in Southwest China and one of the five national central cities of China. Administratively, it is one of the PRC's four direct-controlled municipalities , and the only such municipality in inland China.The municipality was created on 14 March 1997, succeeding the...
, ChengduChengduChengdu , formerly transliterated Chengtu, is the capital of Sichuan province in Southwest China. It holds sub-provincial administrative status... - Hong KongHong KongHong Kong is one of two Special Administrative Regions of the People's Republic of China , the other being Macau. A city-state situated on China's south coast and enclosed by the Pearl River Delta and South China Sea, it is renowned for its expansive skyline and deep natural harbour...
- MacauMacauMacau , also spelled Macao , is, along with Hong Kong, one of the two special administrative regions of the People's Republic of China...
- Taiwan: TaipeiTaipeiTaipei City is the capital of the Republic of China and the central city of the largest metropolitan area of Taiwan. Situated at the northern tip of the island, Taipei is located on the Tamsui River, and is about 25 km southwest of Keelung, its port on the Pacific Ocean...
; KaohsiungKaohsiungKaohsiung is a city located in southwestern Taiwan, facing the Taiwan Strait on the west. Kaohsiung, officially named Kaohsiung City, is divided into thirty-eight districts. The city is one of five special municipalities of the Republic of China...
(borders on a true tropical climate) - Japan: ShikokuShikokuis the smallest and least populous of the four main islands of Japan, located south of Honshū and east of the island of Kyūshū. Its ancient names include Iyo-no-futana-shima , Iyo-shima , and Futana-shima...
, KyūshūKyushuis the third largest island of Japan and most southwesterly of its four main islands. Its alternate ancient names include , , and . The historical regional name is referred to Kyushu and its surrounding islands....
, Okinawa, HonshūHonshuis the largest island of Japan. The nation's main island, it is south of Hokkaido across the Tsugaru Strait, north of Shikoku across the Inland Sea, and northeast of Kyushu across the Kanmon Strait... - European UnionEuropean UnionThe European Union is an economic and political union of 27 independent member states which are located primarily in Europe. The EU traces its origins from the European Coal and Steel Community and the European Economic Community , formed by six countries in 1958...
: Inland areas around the Mediterranean including a major part of the Iberian PeninsulaIberian PeninsulaThe Iberian Peninsula , sometimes called Iberia, is located in the extreme southwest of Europe and includes the modern-day sovereign states of Spain, Portugal and Andorra, as well as the British Overseas Territory of Gibraltar...
, Apennine PeninsulaItalian PeninsulaThe Italian Peninsula or Apennine Peninsula is one of the three large peninsulas of Southern Europe , spanning from the Po Valley in the north to the central Mediterranean Sea in the south. The peninsula's shape gives it the nickname Lo Stivale...
and Balkan PeninsulaBalkansThe Balkans is a geopolitical and cultural region of southeastern Europe...
. Major metropolises (urban area above 1 million people): MadridMadridMadrid is the capital and largest city of Spain. The population of the city is roughly 3.3 million and the entire population of the Madrid metropolitan area is calculated to be 6.271 million. It is the third largest city in the European Union, after London and Berlin, and its metropolitan...
; BarcelonaBarcelonaBarcelona is the second largest city in Spain after Madrid, and the capital of Catalonia, with a population of 1,621,537 within its administrative limits on a land area of...
; MilanMilanMilan is the second-largest city in Italy and the capital city of the region of Lombardy and of the province of Milan. The city proper has a population of about 1.3 million, while its urban area, roughly coinciding with its administrative province and the bordering Province of Monza and Brianza ,...
; AthensAthensAthens , is the capital and largest city of Greece. Athens dominates the Attica region and is one of the world's oldest cities, as its recorded history spans around 3,400 years. Classical Athens was a powerful city-state...
; LisbonLisbonLisbon is the capital city and largest city of Portugal with a population of 545,245 within its administrative limits on a land area of . The urban area of Lisbon extends beyond the administrative city limits with a population of 3 million on an area of , making it the 9th most populous urban...
; RomeRomeRome is the capital of Italy and the country's largest and most populated city and comune, with over 2.7 million residents in . The city is located in the central-western portion of the Italian Peninsula, on the Tiber River within the Lazio region of Italy.Rome's history spans two and a half...
; NaplesNaplesNaples is a city in Southern Italy, situated on the country's west coast by the Gulf of Naples. Lying between two notable volcanic regions, Mount Vesuvius and the Phlegraean Fields, it is the capital of the region of Campania and of the province of Naples...
; PortoPortoPorto , also known as Oporto in English, is the second largest city in Portugal and one of the major urban areas in the Iberian Peninsula. Its administrative limits include a population of 237,559 inhabitants distributed within 15 civil parishes...
; Marseilles; TurinTurinTurin is a city and major business and cultural centre in northern Italy, capital of the Piedmont region, located mainly on the left bank of the Po River and surrounded by the Alpine arch. The population of the city proper is 909,193 while the population of the urban area is estimated by Eurostat...
; Valencia; NiceNiceNice is the fifth most populous city in France, after Paris, Marseille, Lyon and Toulouse, with a population of 348,721 within its administrative limits on a land area of . The urban area of Nice extends beyond the administrative city limits with a population of more than 955,000 on an area of...
. Other places: MaltaMaltaMalta , officially known as the Republic of Malta , is a Southern European country consisting of an archipelago situated in the centre of the Mediterranean, south of Sicily, east of Tunisia and north of Libya, with Gibraltar to the west and Alexandria to the east.Malta covers just over in...
and GibraltarGibraltarGibraltar is a British overseas territory located on the southern end of the Iberian Peninsula at the entrance of the Mediterranean. A peninsula with an area of , it has a northern border with Andalusia, Spain. The Rock of Gibraltar is the major landmark of the region...
. - GeorgiaGeorgia (country)Georgia is a sovereign state in the Caucasus region of Eurasia. Located at the crossroads of Western Asia and Eastern Europe, it is bounded to the west by the Black Sea, to the north by Russia, to the southwest by Turkey, to the south by Armenia, and to the southeast by Azerbaijan. The capital of...
: BatumiBatumiBatumi is a seaside city on the Black Sea coast and capital of Adjara, an autonomous republic in southwest Georgia. Sometimes considered Georgia's second capital, with a population of 121,806 , Batumi serves as an important port and a commercial center. It is situated in a subtropical zone, rich in...
, SukhumiSukhumiSukhumi is the capital of Abkhazia, a disputed region on the Black Sea coast. The city suffered heavily during the Georgian-Abkhaz conflict in the early 1990s.-Naming:...
. - India: AmritsarAmritsarAmritsar is a city in the northern part of India and is the administrative headquarters of Amritsar district in the state of Punjab, India. The 2001 Indian census reported the population of the city to be over 1,500,000, with that of the entire district numbering 3,695,077...
, and New DelhiNew DelhiNew Delhi is the capital city of India. It serves as the centre of the Government of India and the Government of the National Capital Territory of Delhi. New Delhi is situated within the metropolis of Delhi. It is one of the nine districts of Delhi Union Territory. The total area of the city is...
. - Pakistan: IslamabadIslamabadIslamabad is the capital of Pakistan and the tenth largest city in the country. Located within the Islamabad Capital Territory , the population of the city has grown from 100,000 in 1951 to 1.7 million in 2011...
, PeshawarPeshawarPeshawar is the capital of Khyber-Pakhtunkhwa and the administrative center and central economic hub for the Federally Administered Tribal Areas of Pakistan....
, MuzaffarabadMuzaffarabadMuzaffarabad is the capital of Pakistan Occupied Kashmir, Pakistan. It is located in Muzaffarabad District on the banks of the Jhelum and Neelum rivers...
, QuettaQuettais the largest city and the provincial capital of the Balochistan Province of Pakistan. Known as the "Fruit Garden of Pakistan" due to the diversity of its plant and animal wildlife, Quetta is home to the Hazarganji Chiltan National Park, which contains some of the rarest species of wildlife in the...
, MardanMardanMardan , known as The city of hospitality, is a city and headquarters of Mardan District in Khyber Pakhtunkhwa Province, Pakistan. It is the de facto headquarters of the Yousafzai tribe and the second most populous city in the province, located at 34°12'0N 72°1'60E and an altitude of in the south... - Russia: SochiSochiSochi is a city in Krasnodar Krai, Russia, situated just north of Russia's border with the de facto independent republic of Abkhazia, on the Black Sea coast. Greater Sochi sprawls for along the shores of the Black Sea near the Caucasus Mountains...
, TuapseTuapseTuapse is a town in Krasnodar Krai, Russia, situated on the northeast shore of the Black Sea, south of Gelendzhik and north of Sochi. It serves as the administrative center of Tuapsinsky District, although administratively it is separate from it...
, GelendzhikGelendzhikGelendzhik is a resort town in Krasnodar Krai, Russia, situated on the Gelendzhik Bay of the Black Sea, between Novorossiysk and Tuapse . Greater Gelendzhik sprawls for along the coastline and covers an area of 122,754 ha...
. - Philippines: Baguio, BatanesBatanesThe Province of Batanes , also called the Batanes Islands, is a Philippine province comprising ten islands that are located in the Luzon Strait between the islands of Luzon and Taiwan...
. - Turkey: AdanaAdanaAdana is a city in southern Turkey and a major agricultural and commercial center. The city is situated on the Seyhan River, 30 kilometres inland from the Mediterranean, in south-central Anatolia...
, AntalyaAntalyaAntalya is a city on the Mediterranean coast of southwestern Turkey. With a population 1,001,318 as of 2010. It is the eighth most populous city in Turkey and country's biggest international sea resort.- History :...
, İzmirIzmirIzmir is a large metropolis in the western extremity of Anatolia. The metropolitan area in the entire Izmir Province had a population of 3.35 million as of 2010, making the city third most populous in Turkey...
, MersinMersin-Mersin today:Today, Mersin is a large city spreading out along the coast, with Turkey's second tallest skyscraper , huge hotels, an opera house, expensive real estate near the sea or up in the hills, and many other modern urban...
. - Middle East: Coastal IranIranIran , officially the Islamic Republic of Iran , is a country in Southern and Western Asia. The name "Iran" has been in use natively since the Sassanian era and came into use internationally in 1935, before which the country was known to the Western world as Persia...
, Persian GulfPersian GulfThe Persian Gulf, in Southwest Asia, is an extension of the Indian Ocean located between Iran and the Arabian Peninsula.The Persian Gulf was the focus of the 1980–1988 Iran-Iraq War, in which each side attacked the other's oil tankers...
; BaghdadBaghdadBaghdad is the capital of Iraq, as well as the coterminous Baghdad Governorate. The population of Baghdad in 2011 is approximately 7,216,040...
, IraqIraqIraq ; officially the Republic of Iraq is a country in Western Asia spanning most of the northwestern end of the Zagros mountain range, the eastern part of the Syrian Desert and the northern part of the Arabian Desert....
; IsraelIsraelThe State of Israel is a parliamentary republic located in the Middle East, along the eastern shore of the Mediterranean Sea...
; Northern Saudi ArabiaSaudi ArabiaThe Kingdom of Saudi Arabia , commonly known in British English as Saudi Arabia and in Arabic as as-Sa‘ūdiyyah , is the largest state in Western Asia by land area, constituting the bulk of the Arabian Peninsula, and the second-largest in the Arab World...
; Beirut, Lebanon and LatakiaLatakiaLatakia, or Latakiyah , is the principal port city of Syria, as well as the capital of the Latakia Governorate. In addition to serving as a port, the city is a manufacturing center for surrounding agricultural towns and villages...
, SyriaSyriaSyria , officially the Syrian Arab Republic , is a country in Western Asia, bordering Lebanon and the Mediterranean Sea to the West, Turkey to the north, Iraq to the east, Jordan to the south, and Israel to the southwest....
. - Ukraine: YaltaYaltaYalta is a city in Crimea, southern Ukraine, on the north coast of the Black Sea.The city is located on the site of an ancient Greek colony, said to have been founded by Greek sailors who were looking for a safe shore on which to land. It is situated on a deep bay facing south towards the Black...
, SevastopolSevastopolSevastopol is a city on rights of administrative division of Ukraine, located on the Black Sea coast of the Crimea peninsula. It has a population of 342,451 . Sevastopol is the second largest port in Ukraine, after the Port of Odessa....
, SimferopolSimferopol-Russian Empire and Civil War:The city was renamed Simferopol in 1784 after the annexation of the Crimean Khanate to the Russian Empire by Catherine II of Russia. The name Simferopol is derived from the Greek, Συμφερόπολις , translated as "the city of usefulness." In 1802, Simferopol became the...
barely making qualifications on the northern extent. - Vietnam: HanoiHanoiHanoi , is the capital of Vietnam and the country's second largest city. Its population in 2009 was estimated at 2.6 million for urban districts, 6.5 million for the metropolitan jurisdiction. From 1010 until 1802, it was the most important political centre of Vietnam...
, Hai Phong, Da Lat.
In Oceania
- Australia: New South WalesNew South WalesNew South Wales is a state of :Australia, located in the east of the country. It is bordered by Queensland, Victoria and South Australia to the north, south and west respectively. To the east, the state is bordered by the Tasman Sea, which forms part of the Pacific Ocean. New South Wales...
(though not most of the Tablelands and Highland regions), parts of QueenslandQueenslandQueensland is a state of Australia, occupying the north-eastern section of the mainland continent. It is bordered by the Northern Territory, South Australia and New South Wales to the west, south-west and south respectively. To the east, Queensland is bordered by the Coral Sea and Pacific Ocean...
, Western AustraliaWestern AustraliaWestern Australia is a state of Australia, occupying the entire western third of the Australian continent. It is bounded by the Indian Ocean to the north and west, the Great Australian Bight and Indian Ocean to the south, the Northern Territory to the north-east and South Australia to the south-east...
, South AustraliaSouth AustraliaSouth Australia is a state of Australia in the southern central part of the country. It covers some of the most arid parts of the continent; with a total land area of , it is the fourth largest of Australia's six states and two territories.South Australia shares borders with all of the mainland...
, and VictoriaVictoria (Australia)Victoria is the second most populous state in Australia. Geographically the smallest mainland state, Victoria is bordered by New South Wales, South Australia, and Tasmania on Boundary Islet to the north, west and south respectively....
. - New Zealand: The northern part of North IslandNorth IslandThe North Island is one of the two main islands of New Zealand, separated from the much less populous South Island by Cook Strait. The island is in area, making it the world's 14th-largest island...
, restricted to the Northland Region.
Subtropical highland variety
Mediterranean climate
Humid subtropical climate
Subtropical semi-desert/desert climate
See also
- Humid subtropical climateHumid subtropical climateA humid subtropical climate is a climate zone characterized by hot, humid summers and mild to cool winters...
- Mediterranean climateMediterranean climateA Mediterranean climate is the climate typical of most of the lands in the Mediterranean Basin, and is a particular variety of subtropical climate...
- Mediterranean forests, woodlands, and scrubMediterranean forests, woodlands, and scrubMediterranean forests, woodlands, and scrub biome, defined by the World Wildlife Fund, characterized by dry summers and rainy winters. Summers are typically hot in low-lying inland locations but can be cool near some seas, as near San Francisco, which have a sea of cool waters...
- Geographical zoneGeographical zoneThe five main latitude regions of the Earth's surface comprise geographical zones, divided by the major circles of latitude. The differences between them relate to climate, and the behaviour of the Sun...
External links
- Study Shows Ocean “Deserts” are Expanding from NOAA, March 5, 2008
- Expanding tropics 'a threat to millions' from The Independent, 3 December 2007