Apparently they are legit. But it's important to remember that this is the tiniest of tiny good deeds if you're really concerned about the environment.

Yes, that's obvious. But the cognitive fallacy of small gestures is a real issue, i.e. the problem of people changing their lightbulbs and calling it a day. Especially since there are things we can do that really do make a difference. For example, cutting down on red meat, dairy, and flying. Any one of those will have more impact than decades of using Ecosia.

Privacy is a better reason to use Ecosia.