You've probably heard of the Step It Up 2007 campaign in the US. I just found a site promoting Step It Up in Canada!
I think it's a great idea. If anybody is planning any actions on April 14th, let me know and I'll post them here!
Step It Up is organized by Bill McKibben. I recently heard him speak on a podcast of NPR's OnPoint. He also has a column in last month's Ecologist, about how we can stop global warming and be happy too. (Which is great, because I just read Heat, and am now really depressed.)
McKibben's latest book is called Deep Economy: The Wealth of Communities and the Durable Future. It's on my reading list.