A new study warns that things could get worse, with scientists reporting that even small increases in global temperatures will make some parts of the Earth too hot for humans to endure.
The signs of climate change are everywhere, from raging wildfires to flash flooding to soaring temperatures.
“The take-home message is that we want to keep global warming to as much of a minimum as we can,” said Vecellio, who conducted the research while at Penn State University. "The easiest thing to say, but I guess as we see the hardest thing to do is to accelerate our reductions in greenhouseIn the study, scientists used lab-measured, physiologically-based temperature thresholds at a range of air temperatures and relative humidity.
This new study shows that if global temperatures grow by 2 degrees C, areas in Pakistan, India's Indus River Valley, eastern China and sub-Saharan Africa will have many hours of heat exceeding what humans can stand every year, affecting about 4 billion people. These areas are also home to lower-to-middle income nations, where many people may have no access to air conditioning during heat waves.
Those who will be hit the soonest and hardest are those who had little to do with creating the climate issues. That would include using electricity instead of fossil fuels and powering the grid system with renewable resources.
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