Conversation so far:
What was one of the environmental issues involving Michael Bloomberg?
Michael Bloomberg served as the chairman of the C40 Cities Climate Leadership Group, a network of the world's biggest cities working together to reduce carbon emissions.

Question: Are there any other interesting aspects about this article?
Self-contained rewrite: Are there any other interesting aspects about this Michael Bloomberg article on the environment besides that he served as the chairman of the C40 Cities Climate Leadership Group?