Up to eight years’ worth of global greenhouse gas emissions could be prevented over the next four decades by setting tougher standards for air conditioning, according to a study. It found that improving the energy efficiency of cooling systems by using climate-friendly refrigerants could remove emissions equivalent to between 210bn and 460bn tonnes of carbon dioxide by 2060. The peer-reviewed analysis by the United Nations Environment Programme (Unep) and the International Energy Agency (IEA) found that cutting the use of climate-warming refrigerants such as hydrofluorocarbons (HFCs) alone could help avoid up to 0.4C of global warming by the end of the century. Doubling the energy efficiency of air conditioning by 2050 would cut electricity use by 1,300 gigawatts, the equivalent of all the coal-fired power generation capacity in China and India in 2018, saving up to $2.9tn in electricity costs.
Guardian 17th July 2020 read more »