The heat index ...

Workers assembled a billboard sign head frame in Oklahoma City on July 27, when the high was 97 degrees Fahrenheit.Credit...Brett Deering for The New York Times

Every mass extinction on planet earth, since the beginning of time, began with the injection of excessive amounts of CO2 and methane into the atmosphere, thus creating the greenhouse effect with the end result of killing off multitudes of species too numerous to count, something now happening in the year of our lord 2023. With this being said, GW's impact on productivity is becoming problematic as excess heat, caused by the aforementioned greenhouse gases, can kill, a reality finally being recognized as an emerging problem when questioning on whether civilization can survive because GW's just beginning to ramp up in terms of showing just how hot the world will become as man moves further into the 21st century.

As much of the United States swelters under record heat, Amazon drivers and warehouse workers have gone on strike in part to protest working conditions that can exceed 100 degrees Fahrenheit.

On triple-digit days in Orlando, utility crews are postponing checks for gas leaks, since digging outdoors dressed in heavy safety gear could endanger their lives. Even in Michigan, on the nation’s northern border, construction crews are working shortened days because of heat.

Now that climate change has raised the Earth’s temperatures to the highest levels in recorded history, with projections showing that they will only climb further, new research shows the impact of heat on workers is spreading across the economy and lowering productivity.

A rather obvious fact ...

“We’ve known for a very long time that human beings are very sensitive to temperature, and that their performance declines dramatically when exposed to heat, but what we haven’t known until very recently is whether and how those lab responses meaningfully extrapolate to the real-world economy,” said R. Jisung Park, an environmental and labor economist at the University of Pennsylvania. “And what we are learning is that hotter temperatures appear to muck up the gears of the economy in many more ways than we would have expected.”

Dividing line - 2019