Do celebrities live up to their LIME ambitions? We investigate every Friday.

Back in March, we wrote about how to talk to Michael Crichton and his ilk. It seems almost impossible that there could be anyone left who denies that the Earth's climate is changing as a result of human activity. But amazingly enough, they do exist and they are extremely vocal: evidence the Competitive Enterprise Institute ads that we wrote about earlier this week.

Now WorldChanging, a blog we read regularly, has issued a call for help in dealing with these poor fools whose heads are in the sand (or somewhere less polite). Having noticed a rise in posted comments from "climate denialists," the folks at WorldChanging are calling for some groupthink. Here's what they're after:

By Leonora Oppenheim of Treehugger.

Our favorite enviro funny men Dave Poncé and Dan Wright, a.k.a. Rustle The Leaf, have, in collaboration with those squeaky clean folks at Citra-Solv, created a step by step guide to the upcoming Earth Day on April 22. With their inimitable straight talking and funny cartoons Rustle The Leaf always manage to convey the most serious of messages with a humorous twist. The Earth Day Book is a 12-page booklet filled with activities and information about Earth Day and other environmentally-related topics. The inside cover detaches to reveal a beautiful, full-color poster called ‘Rustle the Leaf's Earth Day Pledge.' There are 100 000 copies which they are giving away on a first come first served basis, so you better move fast since Dave Poncé tells us they are going like hot cakes - 10 000 were ordered on just one day last week! The Earth Day Book is completely free, you don't even have to pay for post or packaging. You can order your copy until March 20 at Rustle The Leaf or Citra-Solv.

Lazy? A total slacker? Don't stress. You can still help save the planet.