The nation’s only multistate cap-and-trade accord, RGGI has been a financial boon for states but has done little to directly curb carbon emissions

Drs. Ralph and Amy Pratt consider themselves environmentally conscious business owners. As veterinarians, and owners of the West Greenwich Animal Hospital, the husband and wife think seriously about climate change. “We both started out in college studying biology and zoology, automatically giving us that scientific understanding of global warming created by fossil-fuel burning,” Ralph Pratt