Climate change is projected to make such events more common, but in the so-called "air-conditioned city," those without access to cooled air are most vulnerable to heat-related illnesses.

TOKYO — Japanese officials issued new warnings on Monday as a deadly heat wave blankets the country, producing record high temperatures in Tokyo just two years before the city hosts the 2020 Summer ...

Australia's climate is changing rapidly due to rising global greenhouse gas emissions. Extreme weather events such as tropical cyclones, east coast low pressure systems, flash floods, droughts, ...

Heat, not flooding, tornadoes or lightning, is typically America's biggest weather killer. One of the signature heat waves in recent U.S. history claimed hundreds of lives in the Midwest in the 1990s.