Greenpeace is an international environmental organization founded in Vancouver, British Columbia, Canada in 1971. Greenpeace is known for its use of campaigns to stop atmospheric and underground nuclear testing as well as bring an end to high seas whaling. In later years, the focus of the organization turned to other environmental issues, including bottom trawling, global warming, ancient forest destruction, and genetic engineering. Greenpeace has national and regional offices in 41 countries worldwide, all of which have affiliation with the Amsterdam-based Greenpeace International.