Waterkeeper Alliance is an environmental organization founded in 1999, responding to a growing movement of organizations with the name Riverkeeper, Baykeeper, Soundkeeper, and other related "keeper" names, of which there are over 270 around the world. The original Riverkeeper, organized in 1983, started on the Hudson River in New York state, USA, in response to the destructive industrial pollution that was destroying the river. It was soon followed by Long Island Soundkeeper (which was led by Terry Backer), Delaware Riverkeeper, San Francisco Baykeeper, New York/New Jersey Baykeeper, and others. Hudson Riverkeeper is now headed by Paul Gallay, the chief executive since July, 2010. Today, Waterkeeper Alliance, which is based out of New York, New York, unites all Waterkeeper organizations, coordinating and covering issues affecting Waterkeepers that work to protect rivers, lakes, bays, sounds, and other water bodies around the world. Its the fastest growing grassroots environmental movement in the world, spanning six continents. Each Waterkeeper organization is devoted to the preservation of specific watersheds. There are over 270 Waterkeeper organizations (Basinkeeper, Baykeeper, Bayoukeeper, Canalkeeper, Channelkeeper, Coastkeeper, Creekkeeper, Deltakeeper, Gulfkeeper, Inletkeeper, Lakekeeper, Riverkeeper, Shorekeeper, Soundkeeper, Waterkeeper) on six continents in 33 countries defending communities against anyone who threatens their right to clean water—from polluters to unresponsive government agencies.