I agree with Kaite that the topic of visual arts as therapy would probably be more slowly changing than either wind energy or disappearing bees. I don't know very much about using art for therapy but it sounds like it could be beneficially to people that are injured, traumatized, or elderly.
There must be lot of information on wind energy. On vacation in California this summer, I passed through an area at the foothills at the Sierra Nevada that had over 1000 wind turbines! It sounds like you already found information regarding a proposed wind farm in Cape Cod. Have you heard about the proposed, large wind farm off the coast of Maine?
The disappearance of bees could become a vital issue if it starts to have a significantly harmful effect on crops and food supply. I am also concerned that you will be able to find new information on a regular basis. Colony Collapse Disorder is an interesting scientific mystery and maybe they will come up with a solution this year while you are writing your blog.
