Greenhouse gases deal will make little difference to west

HFCs deal is vital for reducing emissions but poorer countries rely on old coolant technologies and will now have to upgradeThey went to Kigali to eliminate hydrofluorocarbons (HFCs) and take 0.5C out of future global warming, and the 170 countries who successfully negotiated an amendment to the Montreal Protocol agreed to get rid of 90% of them. Job done. Not bad for four days and three long nights’ work.In fact the Kigali deal on HFCs, announced on Saturday morning, is fiendishly complic