Humble BundleBst choice for Environment charity

Most of these are very local so if you're looking for something with a little more impact globally speaking, I'd say go with the World Environmental Conservancy
They're a not for profit research agency working with various institutions, and connecting the dots between pure research, science, engineering and data to practical applications for the environment.

Reporters Without Borders has been my standard charity for ages. And their job is getting more important with every passing year, it seems.