Dominica, China and Honduras were the countries most affected by extreme weather, according to the Climate Risk Index.

More than one million people in eastern Montana and the Dakotas are under extreme cold warnings on Monday and Tuesday.

Incarcerated people in Colorado are exposed to climate-related extreme heat and cold, plus flooding and wildfires. Because they're unable to escape these hazards, their health suffers and some die.

Errors and anomalies do not stop at individual cases; they permeate extreme-age research. Many of the world’s oldest people are reported to be alive on paper long after they died. The first man ...