The Sierra Club

With Trumps withdrawal of the Paris agreement an organization that fights for environmental changes in the US is worth supporting.

Here is their description:

"The Sierra Club is America’s largest and most influential grassroots environmental organization, with more than 3 million members and supporters. In addition to helping people from all backgrounds explore nature and our outdoor heritage, the Sierra Club works to promote clean energy, safeguard the health of our communities, protect wildlife, and preserve our remaining wild places through grassroots activism, public education, lobbying, and legal action."