The Humane Society of the United States is the nation’s largest and most effective animal protection organization. We and our affiliates provide hands-on care and services to more than 100,000 animals each year,...

Founded by legendary conservationist John Muir in 1892, the Sierra Club is now the nation's largest and most influential grassroots environmental organization -- with more than two million members and supporters. Our successes...

350.org is an international campaign that's building a movement to unite the world around solutions to the climate crisis--the solutions that science and justice demand. Our mission is to inspire the world...