The early settlement of the Americas is hugely contested area of archaeology.

New findings from the La Brea Tar Pits in southern California suggest human-caused wildfires in the region, along with a warming climate, led to the loss of most of the area’s large mammals.

The last time methane in the air rose so fast, Greenland warmed by 10°C within decades.

Long before thermometers, nature left its own temperature records. A climate scientist explains how ongoing global warming compares with ancient temperatures.

Knowing Greenland’s ice-free history offers a warning for the future as global temperatures rise.

A forensic technique more often used at modern crime scenes identified blood residue from large extinct animals on spearpoints and stone tools used by people who lived in the Carolinas millennia ago.

The Earth has had at least five major ice ages, and humans showed up in time for the most recent one. In fact, we’re still in it.

The Earth is a resilient planet, but people are altering it in ways that may take centuries to reverse.

The New Mexico findings could rewrite the history of human migration to the Americas.

The Earth is constantly changing in natural ways, but most of those changes are very slow. Humans are speeding up other changes with global warming.