Climate News Network: One of the great stumbling blocks of climate talks in the last 15 years has been that America refuses to move to cut emissions of greenhouse gases until China does but at the weekend leaders of the worlds two great polluters reached agreement to phase out one of the most potent of them hydrofluorocarbons (HCFs).
It was heralded as a great breakthrough, and if it works it will seriously improve the chances of the world avoiding dangerous climate change. But curiously the phasing out of HCFs...