Researchers race against extinction to uncover tree’s cancer-fighting properties

Three Chinese fir trees on a nature reserve in southeastern China are the last of their kind. As their existence is threatened by human disturbance and climate change, researchers are hurrying to learn everything they can about the tree – which might inspire new and more effective ways to treat various cancers.

Earth has a few natural carbon sinks. Some of them are starting to fail.

Until humans can find a way to geoengineer ourselves out of the climate disaster we’ve created, we must rely on natural carbon sinks, such as oceans and forests, to suck carbon dioxide out of the atmosphere. These ecosystems are deteriorating at the hand of climate change, and once destroyed they may not only stop absorbing […]

Early humans likely took the coastal route to North America

When and how the first humans reached North America is a complicated puzzle. Scientists believe these people arrived in Alaska after crossing the Bering Strait, only to be stopped by the enormous Laurentide and Cordilleran ice sheets. The migrants would eventually make their way down to the Americas via one of two paths: the western […]