How old is the oldest ice in Antarctica?

Antarctica is so cold that snowfall builds up year after year, resulting in frozen blankets of ice more than 3 km thick in places. You might think that to find the oldest ice, one simply has to dig ever deeper, to find samples ...

Why the spongy moth outbreak has vanished in Québec

Last year, forests across southern Québec and Ontario and much of New England turned eerily leafless. The air hummed with the sound of munching mandibles and tree trunks were covered with a writhing carpet of caterpillars, ...

AI-based model that predicts extreme wildfire danger

Raging wildfires occurring worldwide have caused tremendous economic damage and loss of life. Knowing when and where a widespread fire could happen in advance can improve fire prevention and resource allocation. However, ...

Chew on this: Personalized health care for mountain gorillas

A mountain gorilla walks in the forest of East Africa's Virunga Volcanoes conservation area. It stops at a piece of wild celery, sits down, and begins to chew. It strips the vegetable's fibrous threads through its teeth, ...

How old is California's Yosemite Valley?

First-time visitors to Yosemite Valley gape in awe at the sheer granite wall of El Capitan and the neatly sliced face of Half Dome, aware, perhaps vaguely, that rain and glaciers must have taken a long time to cut and sculpt ...

page 2 from 40