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World breaks 1,400 temperature records in a week as heat waves sweep globe | Semafor

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World breaks 1,400 temperature records in a week as heat waves sweep globe | Semafor

Semafor Signals: Global insights on today’s biggest stories.

Early heat waves may be more deadly

Science News, WRAL News, The Hill

It’s early in the summer for these kinds of temperatures, and scientists say that might make the heat even more dangerous. Earlier-than-usual heat can catch people by surprise, one climate scientist said, because their bodies don’t have enough time to acclimate to rising temperatures. Climate change also means heat waves are coming earlier and earlier every year, putting more people at risk. As extreme weather becomes more common, experts say it’s crucial that cities update their infrastructure to handle the heat. “The longer it takes us to catch up the more lives are on the line,” said the director of climate resilience and sustainability at the Center for Climate and Energy Solutions, a US-based climate non-profit.

Dangerous climate change is here, but some people don’t buy it

Pew Research Center, World Meteorological Organization, The New York Times

The threat of climate change is grave but research shows many people are still skeptical of the climate crisis’ effect on their lives. Between 2000 and 2019, extreme heat killed an estimated 489,000 people per year, according to the World Meteorological Organization; Last year, 14% of Americans said there was no concrete evidence of climate change. The effects of climate change may be irreversible, but scientists say humans could lessen future warming by stopping greenhouse gas emissions. A seminal 2023 UN report advised that nations would need to immediately stop using fossil fuels to prevent dangerous overheating in the next decade.

Extreme heat is more dangerous than people realize

The Associated Press, TIME

Many people don’t realize how quickly extreme heat can become deadly, experts told The Associated Press, particularly when conditions are humid. In fact, extreme heat kills more people in the US each year than hurricanes, floods, and tornadoes combined. And heat strikes quickly; When the body gets too hot, organs start to fail, and the window for treatment closes swiftly. People don’t understand that heat “can kill you, and it will kill you,” climate journalist Jeff Goodell said, and people who have low socioeconomic status or certain medical conditions are most at risk. “The most vulnerable individuals—the people least likely to have air conditioning—are also the ones least likely to have a park nearby to cool off in,” an environmental scientist said.

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