by The intensifying and expansive heat wave, which affects around 150 million people in the USA from Wisconsin to Washington, DC, bears the license plates of global warming caused by humans.
In the next few days, especially on the east coast, hundreds of daily temperature recordings are threatened, and some high -temperature recordings in general could also be bound or broken.
Milestones for the market are also overnight overnight – another sign of climate change overnight. The nightly temperatures heat up faster than during the day, which exacerbates the health consequences by heat waves. This applies particularly in cities in which the urban heat -island effect keeps the temperatures high overnight.
The US heat wave is almost in tandem with a scorching high temperatures in Western Europe, which made global warming far more likely and more intense.
Of all forms of extreme weather – droughts, floods, hurricanes – heat waves are those that can reliably combine scientists with climate change through fossil fuel pollution. When the world warms up, the likelihood of extreme heating events increases dramatically, while the opportunities and the severity of cold extremes decrease.
“The physical process, such as more greenhouse gases in the atmosphere lead to hotter and more common heat waves, is well understood and uncomplicated,” said Fredi Otto, a climate researcher who leads the global weather attribution project, an international effort that examines the role of climate change in individual weather events.
“Every heat wave that takes place today is hotter than without humans induced by humans,” she said.
The heat waves we are now experiencing occur at 1.2 degrees Celsius (2.16 degrees Fahrenheit) of global warming, whereby more and more heat will be available in the coming decades, since the global average temperatures continue to rise.
In recent years, researchers have found that some heat waves would have been impossible without the temperature rise due to global warming. Others became ten to hundreds of times more likely and hotter than without the effects of climate pollution.
On June 20, a buyer stops a bag of ice in a grocery store during 90-degree temperatures in Boulder, Colorado. – Mark Milkela/Getty Images
This was the case at the Pacific Northwest heat wave of 2021, a Siberian heat wave in 2020 and a heat wave of the United Kingdom in 2022, including recent events.
In short, climate change means that heat waves become more, more intense and longer. They also meet early and later in the warm season, and in many parts of the world they also become moisture, which makes them more dangerous.
Some studies have shown that global weather patterns, the simultaneous heat waves on various continents, such as the USA, and European heat waves this month, occur more and more in summer.
According to a quick scientific analysis, the British heat wave this month, which brought up to 92 degrees of Fahrenheit in Surrey, England, occurred 100 times more often in today’s climate than before the global warming caused by humans.
Three temperatures in three straight temperatures above 82 degrees in the southeast of England are now about 100 times more common than the era of pre-global warming, the analysis said before the people began to burn fossil fuels such as coal, oil and gas for energy.
In the United States, heat waves are the most fatal form of extreme weather. The continuous running is particularly threatening because it is the first of the season and the conditions during the summer of summer, not in June, are more common.
Poeple wanders across the Big Four Bridge when the sun ends in Louisville, Kentucky, in the Waterfront Park on June 22nd. – Jon Cherry/AP
The temperatures will rise near the Amtrak -acela corridor from Washington to New York City near the Amtrak -acela corridor, with the heating indices up to 110 degrees or even higher. Such conditions will make it dangerous to be outdoors for a long time, and the lack of overnight relief will be tightened by public health.
In most parts of the world outside the tropics, including the United States and Great Britain, heat waves that now occur would have been up to 7 degrees cooler without fossil fuels being burned, said Otto.
“Due to its influence on the extreme heat, the climate change induced by humans is massive, which leads to thousands of early deaths and a great burden on infrastructure and ecosystems,” said Otto. “In addition, extreme heat leads to agricultural losses and a great loss of productivity.”
Otto sounded additional caution: Computer models “underestimate” the previous extreme heat trends, which means that projections for future extreme heat are probably also underestimating.
This is considered to be changes in the air pollutants known as aerosols and changes in the weather patterns, which can also be caused by climate change.
Michael Mann, climate researcher at the University of Pennsylvania, has also found that models have to deal with heat wave projections in the context of climate change. In recent years, his research has determined an increase in the occurrence of persistent warmth domes, such as today’s, which have rarely been taken up by the climate models.
“Climate models probably understand the relationship between climate change and the ongoing summer weather extreme today and with prediction of the potential for future increases in such extremes,” he told CNN.
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