State of the Planet

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Heat Waves: Climate School Experts Available to Comment

Hundreds of people have lost their lives in Spain and Portugal due to a heat wave that is moving north and east through Europe. Wales reached its highest-ever temperature of 98.8 degrees Fahrenheit and parts of France saw temperatures as high as 108.68 degrees F on Monday. The extreme heat also led to devastating wildfires across southwestern Europe.

Heat waves are becoming more common in Europe, according to a recent study co-authored by Kai Kornhuber, an adjunct researcher at the Columbia Climate School’s Lamont-Doherty Earth Observatory. This is due to changes in the jet stream.

“Western Europe is seeing its third intense heatwave this summer, and it is still early [in the summer],” Kornhuber told the UK’s Financial Times. In an interview with Reuters, he called Europe a “heatwave hotspot.”

Meanwhile, heat waves are raking much of the United States.

Kornhuber and several other experts from the Columbia Climate School are available to comment for media, including:

  • Mingfang Ting is an atmospheric physicist who studies the regional effects of climate change on heat waves as well as droughts and extreme precipitation in North America and elsewhere. ting@ldeo.columbia.edu | 845-365-8374
  • Richard Seager, a climate scientist at Lamont-Doherty, studies large-scale cycles such as El Niño that influence weather, including extreme bouts of heat. His studies of drought and heat waves in the U.S. West are widely cited. seager@ldeo.columbia.edu  | 845-365-8743
  • Cascade Tuholske is an Earth Institute postdoctoral researcher hosted by the Center for International Earth Science Information Network (CIESIN). He focuses on how climate change is affecting global urban population exposure to extreme heat and heat waves. cascade@ciesin.columbia.edu 

More Climate School heat wave experts can be found here.

Photo of the Earth from space with the text "Lamont at AGU25" on top.

AGU25, the premier Earth and space science conference, takes place December 15-19, 2025 in New Orleans, Louisiana. This year’s theme—Where Science Connects Us—puts in focus how science depends on connection, from the lab to the field to the ballot box. Once again, Lamont-Doherty Earth Observatory and Columbia Climate School scientists, experts, students, and educators are playing an active role, sharing our research and helping shape the future of our planet. #AGU25 Learn More

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