The end of the liberal world order is a phrase that gets thrown around a lot in conference rooms and university lecture halls ...

Black carbon, the sooty byproduct of incomplete combustion of fossil fuels, has emerged as a major contributor to climate ...

Primates—the group of animals that includes monkeys, apes and humans—first evolved in cold, seasonal climates around 66 ...

Glaciers in Washington, Montana, British Columbia, Alberta and the Swiss Alps have set grim records over the past four years, ...