A dispatch from Phoenix.

A disaster in India highlights the health hazards of being out under a hot sun.

Record high temperatures were expected in cities such as Corpus Christi, San Antonio, and Amarillo.

Inside a Phoenix emergency room as temperatures rise and admissions spike.

First responders treated at least one person for "heat-related discomfort" in a Delta Airlines flight that experienced high temperatures while sitting on the...

Britain this morning recorded its highest temperature ever, bringing parts of the country to a standstill and testing infrastructure.

With much of the southern U.S. under heat advisories, millions of people are being exposed to extreme heat — so don't be alarmed if you see a squirrel splooting.

Northeastern flooding and high temperatures throughout the U.S. are expected to continue. The Weather Channel meteorologist Mike Bettes has the forecast.

The physician and New Yorker contributor Dhruv Khullar undergoes an experiment to test his body's limits in high temperatures.

Half the world could soon face dangerous heat. We measured the daily toll it is already taking.

Matt Alt writes about climate change and the effect of rising temperatures on Japan and its culture.

Late summer heat waves across the region have led to temperatures topping 100 degrees in Spain.

Companies have more than one reason to be worried about soaring global temperatures and heat waves. The health risks to employees range from exhaustion, cramps, worsening mental health, diabetic complications, and even stroke. In addition, extreme heat is projected to cause the loss of more than $4 trillion annually in productivity by 2030. The author, a physician who advises corporate leaders, recommends six best…

Extreme heat was forecast across the globe on Wednesday, as wildfires raged and health warnings were in place in parts of Asia, Europe and North America.

California is facing withering heat and worsening wildfires. At least two people have died while trying to flee the Fairview Fire in Hemet. Carter Evans has the latest.

Researchers are drilling down into the ways life on a hotter planet will tax our bodies, and looking for protections that, unlike air-conditioning, don't make the problem worse.

As the cotton harvest season gets underway across Texas, climate change is threatening the $7 billion industry. Janet Shamlian takes a look at how a bad harvest can ripple through the economy.

Henry Grabar on how Europe is dealing with record-breaking heat.

Heat records will keep falling. Our guide on why it's so hot, how to stay cool, and climate solutions.

This week, we talk about what's causing the heat waves, storms, fires, and other extreme atmospheric events we've been living through this summer, and how humanity can prepare for a very hot future.