How fast the planet warms will be crucial for livability

The world is warming … and fast. The global average temperature has already risen by more than 1°C as a result of greenhouse gas emissions from human activity, and most of that warming has come in just the last 50 years.

Tale of two climate crises gives clues to the present

Figuring out what lies ahead for our species and our planet is one of the most pressing and challenging tasks for climate scientists. While models are very useful, there is nothing quite like Earth's history to reveal details ...

Climate experts say they hear talk at UN but not much action

Leader after leader told the United Nations on Monday that they will do more to prevent a warming world from reaching even more dangerous levels. But as they made their pledges at the Climate Action Summit, they and others ...

Five-year period ending 2019 set to be hottest on record

A damning new UN report published Sunday said the world is falling badly behind in the race to avert climate disaster because of runaway warming, with the five-year period ending 2019 set to be the hottest ever.

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