Global warming and photosynthesis project based learning task

This resources is a complete project based learning task that requires students to learn about photosynthesis, global warming and the carbon cycle. The project helps students develop their own opinion about a real world 'wicked' problem (a problem where there are multiple perspectives about a 'right' solution). This is a rigorous task that empowers students to see how science concepts affect their every day lives.
Students are presented with the following: "To combat global warming, some individuals have suggested that one should use as much as possible paper however only from renewable forests rather than only using email or the internet. They argue that by using more paper, more forests need to be planted which in turn combats global warming."