Cover of the UNEP / IEA Cooling Report (IMAGE) Terry Collins Assoc Caption An estimated 3.6 billion cooling appliances are in use worldwide and if cooling is provided to everybody who needs it - and not just those who can afford it - up to 14 billion cooling appliances would be required by 2050. Doubling the energy efficiency of air conditioning by 2050 would reduce the need for 1,300 gigawatts of additional electricity generation capacity to meet peak demand - the equivalent of all the coal-fired power generation capacity in China and India in 2018. Worldwide, doubling the energy efficiency of air conditioners could save up to USD 2.9 trillion by 2050 in reduced electricity generation, transmission and distribution costs alone. Credit UNEP / IEA Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.