What sparked your interest?

How did you become interested in global warming, climate change, energy efficiency, alternative energy, renewable energy, and such?

When I was in elementary school, I learned about deforestation. I got the idea that we were losing all the trees in the world, and I love trees! So I decided then and there that I would have a tree of my very own. I'd put a fence around it so nobody could ever cut down "the last tree in the world."

Obviously, I had not yet learned that, without lots of trees, I wouldn't be there to save the last tree. Without trees, the world would be filled with carbon dioxide, lacking the oxygen I would need to breathe, to live. So now that I'm an adult, I want to save not one, but a world-full of trees. (Is "world-full" a word?) We need trees! While we breathe in oxygen and exhale carbon dioxide, trees take in carbon dioxide and "exhale" oxygen. Pretty good system, huh? Your turn. What sparked your interest?

By the way, this post is part of Blog Action Day. There are more than 8,541 blogs in 148 countries taking part in this today, each posting something about climate change.