MK asked on another thread how a particular frog ties into climate change. I responded and provided a general connection between types of plant communities and the carbon they can "sink" from the atmosphere, and allusions to how loss of habitat in general is contributing to despeciation (in this case, loss of a frog that may be a valuable tool in the fight against AIDS.) I thought I'd look for an article or two, on this or a closely related topic. The one below seemed interesting to me. It looks like half of the net primary production on land (conversion of atmospheric CO2 to sugars - which is carried out by algae and plants) is carried out by tropical evergreen forests. This is one more reason that we should not be cutting down acres and acres of rainforest to convert to farmland.