When news breaks, you need to understand what actually matters — and what to do about it. At Vox, our mission to help you make sense of the world has never been more vital. But we can’t do it on our own.

We rely on readers like you to fund our journalism. Will you support our work and become a Vox Member today?

These are eight of the most high-impact, cost-effective, evidence-based organizations. You may not have heard of them.

If you’re reading this, chances are you care a lot about fighting climate change, and that’s great. The climate emergency threatens all of humanity. And although the world has started to make some progress on it, our global response is still extremely lacking.

The trouble is, it can be genuinely hard to figure out how to direct your money wisely if you want to reduce greenhouse gas emissions. There’s a glut of environmental organizations out there — but how do you know which are the most impactful?