First, we should take seriously the need for a new climate-change accord when global negotiations begin in Bali, Indonesia this December. The weak and only partly implemented Kyoto Protocol expires in 2012, and the world requires a much stronger framework, one that sets a strong target for stabilizing greenhouse gases by 2050 by including agreements on ending tropical deforestation, developing high-mileage automobiles, and shifting to low CO2-emitting power plants.