Climate change is driving 2022 extreme heat and flooding

6/28/2022 10:30:00 AM

Extreme weather events – from scorching heatwaves to unusually heavy downpours – have caused widespread upheaval across the globe this year, with thousands of people killed and millions more displaced.

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Extreme weather events – from scorching heatwaves to unusually heavy downpours – have caused widespread upheaval across the globe this year, with thousands of people killed and millions more displaced.

Extreme weather events – from scorching heatwaves to unusually heavy downpours – have caused widespread upheaval across the globe this year, with thousands of people killed and millions more displaced.

RegisterThe findings confirm warnings of how global warming will change our world - and also make clear what information is missing.For their review paper, scientists drew upon hundreds of "attribution" studies, or research that aims to calculate how climate change affected an extreme event using computer simulations and weather observations.

With heatwaves, it's highly probable that climate change is making things worse.An April heatwave that saw the mercury climb above 50C (122 Fahrenheit) in India and Pakistan, for example, was made 30 times more likely by climate change, according to WWA.

Read more: Reuters Science News »

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Satellites zoom in on cities' hottest neighborhoods to help combat the urban heat island effectDaniel Johnson is an associate professor of geography whose work focuses on remote sensing in relation to public health, climate change and heat waves.

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In the last three months, monsoon rains unleashed disastrous flooding in Bangladesh, and brutal heatwaves seared parts of South Asia and Europe.An artist's conception of the Landsat 9 spacecraft.“Rep.estimates say more than 1,300 people die each year in the United States because of extreme heat, but numbers are higher elsewhere in the world.

Meanwhile, prolonged drought has left millions on the brink of famine in East Africa. Much of this, scientists say, is what's expected from climate change. In Indianapolis, local government and faith-based organizations have used (opens in new tab) , which use indicators of heat-health risk and past heat waves to highlight high-risk communities. Register now for FREE unlimited access to Reuters.” Davis, who has represented the 7 th District since 1997, is facing a stiff primary challenge from Kina Collins and Denarvis Mendenhall, with several progressive groups throwing their support behind Collins in the race.com Register study in the journal Environmental Research: Climate. New York’s" Cool Neighborhoods NYC " program includes strategically planting trees and vegetation to increase shade and evapotranspiration, which cools the surrounding area. The researchers scrutinized the role climate change has played in individual weather events over the past two decades. Under the worst-case warming scenarios, people in tropical regions of Africa could suffer from year-round deadly heat.

The findings confirm warnings of how global warming will change our world - and also make clear what information is missing. An extreme heat vulnerability index highlights areas that are more likely to experience heat-related illnesses and deaths.B. For heatwaves and extreme rainfall, "we find we have a much better understanding of how the intensity of these events is changing due to climate change," said study co-author Luke Harrington, a climate scientist at Victoria University of Wellington. Less understood, however, is how climate change influences wildfires and drought. This index uses Landsat data to measure differences in surface temperature throughout the city, with socioeconomic indicators painting a highly accurate picture of community-level extreme heat health risk. For their review paper, scientists drew upon hundreds of "attribution" studies, or research that aims to calculate how climate change affected an extreme event using computer simulations and weather observations. Illinois' primary Election Day is June 28. There are also large data gaps in many low- and middle-income countries, making it harder to understand what's happening in those regions, said co-author Friederike Otto, one of the climatologists leading the international research collaboration World Weather Attribution (WWA). Johnson, CC BY-ND) As the climate continues to warm and affect urban health, the Landsat satellites' sensors are among our best tools for monitoring the thermal variations of the urban heat island.” Sarah Kaplan contributed to this report.

HEATWAVES With heatwaves, it's highly probable that climate change is making things worse. "Pretty much all heatwaves across the world have been made more intense and more likely by climate change," said study co-author Ben Clarke, an environmental scientist at the University of Oxford. This article is republished from. In general, a heatwave that previously had a 1 in 10 chance of occurring is now nearly three times as likely — and peaking at temperatures around 1 degree Celsius higher – than it would have been without climate change. An April heatwave that saw the mercury climb above 50C (122 Fahrenheit) in India and Pakistan, for example, was made 30 times more likely by climate change, according to WWA. Heatwaves across the Northern Hemisphere in June - from Europe to the United States - highlight "exactly what our review paper shows … the frequency of heatwaves has gone up so much," Otto said.

RAINFALL AND FLOODING Last week, China saw extensive flooding, following heavy rains. At the same time, Bangladesh was hit with a flood-triggering deluge. Overall, episodes of heavy rainfall are becoming more common and more intense. That's because warmer air holds more moisture, so storm clouds are "heavier" before they eventually break. Still, the impact varies by region, with some areas not receiving enough rain, the study said.

DROUGHT Scientists have a harder time figuring out how climate change affects drought. Some regions have suffered ongoing dryness. Warmer temperatures in the U.S. West, for example, are melting the snowpack faster and driving evaporation, the study said.

And while East African droughts have yet to be linked directly to climate change, scientists say the decline in the spring rainy season is tied to warmer waters in the Indian Ocean. This causes rains to fall rapidly over the ocean before reaching the Horn. WILDFIRE Heatwaves and drought conditions are also worsening wildfires, particularly megafires - those that burn more than 100,000 acres. Fire raged across the U.S.

state of New Mexico in April, after a controlled burn set under "much drier conditions than recognized" got out of control, according to the U.S. Forest Service. The fires burned 341,000 acres. read more TROPICAL CYCLONES On a global scale, the frequency of storms hasn't increased.

However, cyclones are now more common in the central Pacific and North Atlantic, and less so in the Bay of Bengal, western North Pacific and southern Indian Ocean, the study said. There is also evidence that tropical storms are becoming more intense and even stalling overland, where they can deliver more rain on a single area. So while climate change might not have made Cyclone Batsirai any more likely to have formed in February, it probably made it more intense, capable of destroying more than 120,000 homes when it hit Madagascar. Register now for FREE unlimited access to Reuters.com Register Reporting by Gloria Dickie; Editing by Katy Daigle and Lisa Shumaker Our Standards: .