India is the key to a potential timely agreement on HFC, as discussed in the linked article:http://in.reuters.com/article/climatechange-hfcs-idINKCN1290CO
Extract: "India will face pressure to speed up its plans for cutting greenhouse gases used in refrigerators, air conditioning and aerosols when governments meet this week to hammer out what would be a third key deal to limit climate change in a month.
About 150 nations meet in Rwanda, from Oct. 10-14 to try to agree a phase down of factory-made hydrofluorocarbon (HFC) gases. U.S. Secretary of State John Kerry will be among those attending.
A quick phase-down of HFCs could be a big contribution to slow climate change, avoiding perhaps 0.5 degree Celsius (0.9 Fahrenheit) of a projected rise in average temperatures by 2100, scientists say.
But India wants a peak in poor nations' rising emissions only in 2031, to give industries time to adapt. More than 100 other nations including the United States, the European Union and African states, favour a peak in 2021.
"It really does matter how early the agreement kicks in," said Jake Schmidt, of the U.S. Natural Resources Defense Council, which reckons India's proposal would add the equivalent of almost a year of global carbon emissions to the atmosphere.
"We must get enough time before the phasing out period starts. We are very clear," Indian Environment Minister Anil Madhav Dave said on Oct. 1, according to the Times of India.
Use of HFCs, which can be 10,000 times more powerful than carbon dioxide as greenhouse gases, is already declining in many rich nations."