South Asia to face more heatwaves due to climate change – Times of India

Dhaka: Deadly heatwaves in South Asia are likely to experience more deadly heatwaves in the future, if global warming is not curbed, the probability of fatal heat stress in the region could be nearly three times as high, researchers said .
But the threat could be halved if the world meets the target set to limit warming to 1.5 degrees Celsius from pre-industrial times under the Paris Agreement on Climate Change, according to researchers this week by an American geophysical association In the study, an international scientific association.
“The future looks bleak for South Asia, but the worst can be avoided,” said Moetasim Ashfaq, a climate scientist at the US-based Oak Ridge National Laboratory.
Nevertheless, global temperatures have already risen by more than 1 degree Celsius, “The need for adaptation in South Asia is today, not in the future. It is no longer an option,” Ashfaq continued.
The Intergovernmental Panel on Climate Change (IPCC) has stated that global-heating emissions should decline by about 45% by 2030 compared to 2010 levels, to keep warming below 2 ° C, the Paris Agreement says high temperatures aim.
But updated emissions reduction plans submitted by 75 countries ahead of the planned COP26 UN climate talks in November barely dent the drastic cuts needed to meet global climate targets, a UN report said last month .
The new study used climate simulations and projected population growth to estimate the number of people who could experience dangerous levels of heat stress at warming levels of 1.5 and 2 ° C.
It looked at projected “wet bulb temperatures”, including humidity and temperature, and aimed to more accurately show what people experienced on a hot day.
Health experts and scientists say that labor becomes unsafe at a wet bulb temperature of 32 ° C. He also highlighted that at 35 ° C, the body can no longer cool itself.
If temperatures reach 2 ° C, the number of South Asians exposed to unsafe temperatures may increase two-fold, and nearly three times as many people may face deadly heat.
The study said that South Asia is home to a quarter of the world’s population and thus heatwaves could have a major impact on workers’ ability to produce crops in areas such as Punjab and Sindh in West Bengal and Uttar Pradesh and Pakistan in India is.
The study said that workers in cities such as Karachi, Kolkata, Mumbai and Peshawar could also be affected as most of the people living here do not have access to air conditioners.
The study also said that Pakistan and India are already experiencing deadly heatwave, with around 3,500 deaths due to one in 2015,


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