Re‐engage with the U.N. Framework Convention on Climate Change. (First step was to have a representative at the climate talks in Poland in December 2008. Senator John Kerry was widely perceived as president-elect Barack Obama's "unofficial" representative.)
Create a Global Energy Forum -- based on the G8+5, which includes all G-8 members plus Brazil, China, India, Mexico and South Africa.
Transfer American technology to the developing world to fight climate change.