Bloomberg: The threat of climate change is driving China and the US - frequent rivals and the world's two largest greenhouse-gas emitters - to collaborate on dozens of potential clean-energy breakthroughs. In research laboratories on opposite sides of the Pacific Ocean, more than 1,100 Chinese and American scientists are engaged in a joint programme marrying public and private money and talent. Among the US companies teamed with Chinese partners are Dow Chemical, Duke Energy and Ford Motor. The cooperation...