Global warming accountable for 75% of extremely hot days: Study

Global warming accountable for 75% of extremely hot days: Study

According to a new report, three out of four extremely hot days can be associated with impact of human activity on climate. As per the new study, percentage of extremely hot days as a result of man-made greenhouse gases will increase past 95% with worsening climate change around mid-century.

The study has been published in the journal Nature Climate Change. However, monsoons have not been affected much because of human activities. The study was conducted by the Swiss scientists. It was calculated by scientists that the reason behind 18% of extreme rain events is global warming.

According to the study, if the temperature increases another two degrees Fahrenheit i.e. 1.1 degrees Celsius, nearly 39% of the downpours would be because of human activity. Greenhouse gases lead to such impact, mainly carbon dioxide from the burning of oil, coal and gas.

According to University of Arizona climate scientist Jonathan Overpeck, who was not related with the study, “This new study helps get the actual probability or odds of human influence. This is key: If you don't like hot temperature extremes that we're getting, you now know how you can reduce the odds of such events by reducing greenhouse gas emissions".

Lead author Erich Fischer, a climate scientist at ETH Zurich, along with colleague Reto Knutti studied only the hottest of hot days i.e. the hottest one-tenth of 1%. They used 25 different computer models in order to carry out their study. A world with no human-caused greenhouse gas emissions was simulated by Fischer and Knutti so as to carry out the study.

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