Not too long ago I learned of this site, conservation.org, that seems to be more than just words on a page or in an email, asking for donations.
Now it's all fine, well and good, as grown-ups used to say, to say you're all about something. And LOTS of organizations want YOU to just put your money where your mouth is -- which they would like to be on the head of their... wait, I'm sorry, I'm going down the wrong track here.
What I'm trying to say is, some so-called environmental organizations are all talk and very little constructive action. Be careful who you donate your hard-earned cash to.
But having said all that, it seems to me that Conservation International is actually working hard for your money. They even have a quiz on the link above, where you can see what Mother Nature thinks about you...