A new study has revealed that the frequency and duration of heatwaves have increased

A new study has found that the frequency and duration of heatwaves around the world has increased. Our planet has been exposed to more frequent and longer-lasting heatwaves over the past 70 years, according to research published in Nature Communications.

There has been an increase in the frequency and duration of heatwaves almost anywhere in the world since the 1950s, according to a new study that has extensively assessed regional heatwaves across the globe. In other words, almost every part of the planet has been exposed to heatwaves that have been more frequent and longer over the past 70 years.

The research, published in Nature Communications, also produced a new metric called ‘cumulative temperature’, which reveals how much heat is present in each heat wave and heat wave seasons. The results showed that the cumulative heat Average was increasing with each passing day.




Cumulative heat rises from 1 to 4.5 degrees Celsius every decade:



According to this metric, in 2009, Australia's worst heatwave season, there was an additional 80 degrees Celsius of cumulative heat across the country. However, an additional 200 degrees Celsius of cumulative heat was felt during the most extreme heatwaves in areas such as Russia and the Mediterranean. The global cumulative heat average increases by about 1 to 4.5 degrees Celsius over a decade, according to the study.

Global averages of cumulative heat have increased from 1 to 4.5 degrees Celsius in 10 years, said Dr. Sarah Perkins Kirkpatrick points out that this average is up to 10 degrees Celsius in parts of the Middle East and Africa and South America.

No detectable uplift occurred in heat wave intensity:

The only metric that did not experience any acceleration, on the other hand, was heat wave intensity, which measures the average temperature across heat waves. The researchers say no detectable uplift has occurred on this metric as heat waves last more frequently and longer around the world, only a detectable increase in average heat wave intensity has been observed in small parts of South Australia and Africa and South America.

Speaking about the subject, Dr. Perkins Kirkpatrick said the change in the number of heat waves by region over the past 70 years, and the rapid increase in the number of these events, is the clearest indication that global warming is now with us and accelerating, and a clear call to policymakers that urgent action is needed.
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