What age are your students and where are you from?  I teach a 9th grade Meteorology class in Pennsylvania and we cover climate change and global warming.

I will be running an after-school Global Warming Club that has 21 to 25 participants. We are looking for other classes(does not have to be an after-school club) who would be interested in corresponding with us on these topics. We meet once a week and wouldn't mind corresponding at least three times a month. The students are very serious about saving the environment and can not wait to meet other students who feel the same way! Please contact me if you are interested!