New Scientist: China and the US collaborating in the fight against climate change? Impossible, we hear you say. And yet, after years of public stand-offs, the world's two largest planet warmers - with 40 per cent of global carbon dioxide emissions between them - last week reached a ground-breaking deal in Washington DC.
Both countries are keen on quick fixes for greenhouse gases other than CO2. They will phase out hydrofluorocarbons (HFCs), used as refrigerants, and harmonise vehicle emissions standards. That...