There used to be places to go to escape the heat on our summer vacations. Now, though, heat waves are infiltrating even the ...

Heat and poor air quality are becoming chronic problems. Here’s what Boston is doing to adapt. But first, here’s what else is ...

The United States and South Korea kicked off their annual summertime joint military exercise on Monday, amid efforts by Seoul ...

Thousands of firefighters worked overnight to contain dozens of deadly wildfires burning across Spain and Portugal as heat and gusty winds spread blazes through dry brush, forests and crops.

Russia’s troops are continuing their slow war of attrition in eastern and northern Ukraine, even as the conflict enters a ...

Republican lawmakers are blaming Canada for not preventing and containing wildfires, whose smoke has fouled the air in several states this year including North Dakota.

Russia’s illegal seizure of the Crimean Peninsula from Ukraine in March 2014 was quick and bloodless, and it sent Moscow’s ...