Here is an outstanding 10-page lesson plan on global warming. Learners discover that there is a lot of controversy surrounding this topic in that the science behind global warming is difficult to prove. The best thing about this plan is that it invites pupils to become informed about the issue, and to enter into debate about it. All points of view are presented here, and young scientists can make up their own minds about it, and what they can do to help reverse the trend of global warming.