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A third of the world now faces deadly heatwaves as result of climate change

Study shows risks have climbed steadily since 1980, and the number of people in danger will grow to 48% by 2100 even if emissions are drastically reduced
19 June 2017
Nearly a third of the world’s population is now exposed to climatic conditions that produce deadly heatwaves, as the accumulation of greenhouse gases in the atmosphere makes it “almost inevitable” that vast areas of the planet will face rising fatalities from high temperatures, new research [ http://www.nature.com/nclimate/journal/vaop/ncurrent/full/nclimate3322.html , PR at http://www.hawaii.edu/news/2017/06/19/rising-deadly-heatwaves/ ] has found.
Climate change [ https://www.theguardian.com/environment/climate-change ] has escalated the heatwave risk across the globe, the study states, with nearly half of the world’s population set to suffer periods of deadly heat by the end of the century even if greenhouse gases are radically cut.
“For heatwaves, our options are now between bad or terrible,” said Camilo Mora, an academic at the University of Hawaii and lead author of the study.
High temperatures are currently baking large swaths of the south-western US, with the National Weather Service [ http://www.weather.gov/ ] (NWS) issuing an excessive heat warning for Phoenix, Arizona [ http://forecast.weather.gov/showsigwx.php?warnzone=AZZ543&warncounty=AZC013&firewxzone=AZZ132&local_place1=Phoenix%20AZ&product1=Excessive+Heat+Warning&lat=33.4484&lon=-112.074#.WUPzbxPyvUI ], which is set to reach 119F (48.3C) on Monday.
The heat warning extends across much of Arizona and up through the heart of California, with Palm Springs forecast a toasty 116F (46.6C) on Monday and Sacramento set to reach 107F (41.6C).
The NWS warned the abnormal warmth would “significantly increase the potential for heat-related illness” and advised residents to drink more water, seek shade and recognize the early symptoms of heat stroke, such as nausea and a racing pulse.
Mora’s research shows that the overall risk of heat-related illness or death has climbed steadily since 1980, with around 30% of the world’s population now living in climatic conditions that deliver deadly temperatures at least 20 days a year.
The proportion of people at risk worldwide will grow to 48% by 2100 even if emissions are drastically reduced, while around three-quarters of the global population will be under threat by then if greenhouse gases are not curbed at all.
“Finding so many cases of heat-related deaths was mind blowing, especially as they often don’t get much attention because they last for just a few days and then people moved on,” Mora said.
“Dying in a heatwave is like being slowly cooked, it’s pure torture. The young and elderly are at particular risk, but we found that this heat can kill soldiers, athletes, everyone.”
[...]
https://www.theguardian.com/environment/2017/jun/19/a-third-of-the-world-now-faces-deadly-heatwaves-as-result-of-climate-change

A third of the world’s people already face deadly heat waves. It could be nearly three-quarters by 2100.
June 19, 2017
https://www.washingtonpost.com/news/energy-environment/wp/2017/06/19/a-third-of-the-world-already-faces-deadly-heat-waves-it-could-be-nearly-three-quarters-by-2100/ [with comments]

Too hot to handle: Study shows Earth’s killer heat worsens

In this June 4, 2017 file photo, Pakistan families cool themselves off in a water stream in Lahore, Pakistan. Killer heat is getting worse, a new study shows. Deadly heat waves like the one now broiling the American West are bigger killers than previously thought and they are going to grow more frequent, according to a new comprehensive study of fatal heat conditions.
June 20, 2017
https://www.apnews.com/d4b0555f62a64fe4ba07adaf3283849a/Too-hot-to-handle:-Study-shows-Earth's-killer-heat-worsens


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Phoenix flights cancelled because it's too hot for planes

Even for Arizona, the temperatures are high - hot enough to stop flights.
As temperatures climb in Phoenix, Arizona, more than 40 flights have been cancelled - because it is too hot for the planes to fly.
20 June 2017
http://www.bbc.com/news/world-us-canada-40339730


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