I AM CAPTAIN PLANET!
Did anybody else watch this when they were a kid?  I LOVED this show when I was young.  I've been a pretty passionate environmentalist for as long as I can remember.  It makes me wonder, though: was I so into this show because it was about a topic that I cared about, even at such a young age, or do I care about it because I liked this show?  I was too young for me to be able to remember well enough to make any distinction.  And of course, there are other factors that influenced this becoming something that mattered to me, including my religion, the way my parents raised me, the state(s) I grew up in, and just my own personality.
Either way, this show had all sorts of awesome things going for it.  A great message, diverse characters, little blurbs at the end of each episode showing easy ways for kids to be more environmentally responsible, and of course those rad early 90s outfits and dialogue.