Have no fear! WCG recently picked up 3 (if I'm remembering correctly... I can't find the news article) new projects. I think one or two, if not all three, have to do with climate change. Here's a forum thread that talks about beta-testing of one of the new projects.

https://www.worldcommunitygrid.org/forums/wcg/viewthread_thread,41609_offset,0#610450