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heat

How Forests Start to Fail, One Leaf at a Time

In a Swiss forest lab, scientists tracked how beech and oak leaves cool themselves and pinpointed the moment heat and drought push them past their limits.

By Bob Berwyn

Special cameras helped scientists pinpoint when a combination of heat and drought conditions cause changes in individual oak leaves. Credit: Alyssa Kullberg
A worker picks leaves from the conveyor belt of a harvester during grape harvest on a vineyard in Lodi, Calif., on Oct. 13, 2025. Credit: Patrick T. Fallon/AFP via Getty Images

A New Wine Label Promotes Workers’ Rights

By Liza Gross

People spend time on Crissy Field Beach during warm weather in San Francisco on March 11. Credit: Tayfun Coskun/Anadolu via Getty Images

Summer in March? Unusual Heat Wave Descends on Already Parched Western U.S.

By Kiley Price

A trained team from the West Coast Large Whale Entanglement Response Program works to free an entangled gray whale off the coast of Orange County, Calif., in December 2017. Credit: West Coast Marine Mammal Stranding Network

Whale Entanglements in Fishing Gear Surge Off U.S. West Coast During Marine Heatwaves

By Teresa Tomassoni

A Civil Protection member comforts a woman as a wildfire burns in the village of Veiga das Meas, Spain, on Aug. 16, 2025. Increasingly severe wildfire seasons around the world are one of the signs that some forests are at a climate threshold. Credit: Miguel Riopa/AFP via Getty Images

Accelerated Global Warming Could Lock Earth Into a Hothouse Future

By Bob Berwyn

An aerial view of burning houses as a wildfire blazes through Concepción, Chile, on Jan. 18. Credit: Guillermo Salgado/AFP via Getty Images

Patagonia Is Burning

By Anika Jane Beamer

A street is inundated with floodwater during a King Tide event on Jan. 3 in Corte Madera, Calif. Credit: Stephen Lam/San Francisco Chronicle via Getty Images

A California Climate Expert Is Working to Restore Climate Risk Scores Deleted by Zillow

By Claire Barber

A construction worker cools off with water as a heatwave hits France in Nantes on June 19, 2025. Credit: Loic Venance/AFP via Getty Images

New Climate Reports Show ‘Unprecedented Run of Global Heat’

By Bob Berwyn

A Los Angeles County crew member hydrates between repaving a road as temperatures reach 100 degrees and above in August 2023. Credit: Robert Gauthier/Los Angeles Times via Getty Images

New Analysis Provides More Evidence That Heat Standards Save Lives

By Liza Gross

A worker stripes an intersection on a hot afternoon in Austin, Texas, on Aug. 6. Credit: Jay Janner/Austin American-Statesman via Getty Images

Texas Workers Keep Dying in the Heat

By Martha Pskowski, Keerti Gopal

Pictures of trees in the halls of the COP30 venue aren’t helping much with the extreme heat. U.N. officials sent a sharp letter to Brazil, asking the host country to immediately address the concerns. Credit: Bob Berwyn/Inside Climate News

Extreme Heat, Leaks and Security Issues Roil COP30

By Bob Berwyn

The sun bears down on the Walk of Champions outside Bryant-Denny Stadium at the University of Alabama. Credit: Lee Hedgepeth/Inside Climate News

Scorching Saturdays: The Rising Heat Threat Inside Football Stadiums

By Olivia McMurrey, Lee Hedgepeth

A construction worker ushers traffic on July 11, 2023, during a record-setting heat wave in Austin, Texas. Credit: Brandon Bell/Getty Images

Growing Threat to Heat-Exposed Workers: Chronic Kidney Disease

By Gina Jiménez, Public Health Watch

‘Millions of Avoidable Deaths’: Climate Change Health Harms Reach Unprecedented Levels

By Keerti Gopal

People try to stay cool on the sweltering streets of Manhattan as New York City experiences a heat wave on July 29. Credit: Spencer Platt/Getty Images

What Extreme Heat Is Doing to Your Body

By Keerti Gopal

People walk along the East River in Brooklyn at sunrise on Aug. 12, as New York City experiences an air quality health advisory. Credit: Spencer Platt/Getty Images

Urban Heat and Air Pollution May Harm Developing Brains in the Womb, Study Suggests

By Jaylan Sims

The site at Princeton’s Quarry Park that is being prepared for the town’s new microforest. Credit: Courtesy of Inga Reich

Plans Bloom for a Microforest in Princeton as New Jersey Residents Tackle Rising Heat

By Emilie Lounsberry

Madrid’s Emergency Medical Service workers transfer a prisoner from Valdemoro prison to Infanta Elena Hospital after he suffered heat stroke amid a heat wave in Spain. Credit: Pierre-Philippe Marcou/AFP via Getty Images

Human-Caused Warming Tripled the Death Toll of European Heat Waves This Summer, New Report Shows

By Bob Berwyn

A worker drinks water from a botijo, a Spanish traditional earthenware drinking jug, to fight the heat in the midst of a heat wave in Madrid on Aug. 9, 2023. Credit: Javier Soriano/AFP via Getty Images

World’s Largest Fossil Fuel and Cement Producers Are Responsible for About Half the Intensity of Recent Heat Waves, New Study Shows

By Dana Drugmand

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