The Seaweed Rebellion is an informal marine environmentalist

Environmentalism

Environmentalism is a broad philosophy, ideology and social movement regarding concerns for environmental conservation and improvement of the health of the environment, particularly as the measure for this health seeks to incorporate the concerns of non-human elements...

 activist

Activism

Activism consists of intentional efforts to bring about social, political, economic, or environmental change. Activism can take a wide range of forms from writing letters to newspapers or politicians, political campaigning, economic activism such as boycotts or preferentially patronizing...

 movement in the United States

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

. Deriving its name from an analogy with grassroots democracy

Grassroots democracy

Grassroots democracy is a tendency towards designing political processes where as much decision-making authority as practical is shifted to the organization's lowest geographic level of organization: principle of subsidiarity....

, the movement comprises disparate organizations with the common aim of protecting the ocean

Ocean

An ocean is a major body of saline water, and a principal component of the hydrosphere. Approximately 71% of the Earth's surface is covered by ocean, a continuous body of water that is customarily divided into several principal oceans and smaller seas.More than half of this area is over 3,000...

s, sea

Sea

A sea generally refers to a large body of salt water, but the term is used in other contexts as well. Most commonly, it means a large expanse of saline water connected with an ocean, and is commonly used as a synonym for ocean...

s and coast

Coast

A coastline or seashore is the area where land meets the sea or ocean. A precise line that can be called a coastline cannot be determined due to the dynamic nature of tides. The term "coastal zone" can be used instead, which is a spatial zone where interaction of the sea and land processes occurs...

s of the United States.

The Blue Frontier Campaign

Blue Frontier Campaign

The Blue Frontier Campaign is a United States marine conservation activist organization founded by David Helvarg in 2003.The Campaign has established a nationwide network of grassroots lobbyists...

 is an umbrella organization aiming to coordinate these groups into a common voice to achieve effective lobbying of federal and state policy makers.

The name was first applied to a 1947 court case between the United States and 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...

over who owned the sea bed, and the associated oil deposits, off the state coast but is now heard rarely in that context.