Earth Day photography contest under way (win $25 gift certificate)

Due to time constraints we won't have an "Earth Day" round-up this year, but our Earth Day Photography Contest is under way. You can submit entries until Sunday March 25 11pm New York City time. The winner receives a $25 Amazon.com electronic gift certificate. Submit your entries in the comments section of the contest post. If they happen to get caught by the spam filter, fear not, the original posting time is preserved, and they will show up at the correct time when we "liberate" them :)