Ice Sheets

We Were Wrong About How Ancient Humans Colonised North America

We Were Wrong About How Ancient Humans Colonised North America

It’s a veritable certainty that North America’s first people arrived via the Bering Land Bridge, but less certainty exists about how and where they migrated from there. For years, scientists thought they had travelled along an ice-free corridor in western Canada, but new research suggests that this was impossible.

Why Haven’t These Dirty Piles Of Snow Melted Already?

Why Haven’t These Dirty Piles Of Snow Melted Already?

Over the winter, the Eastern US was blanketed in blizzard after blizzard. As a stark reminder of Mother Nature’s bitchiness, two snow-plowed piles of that record snowfall lingered well into summer in two different cities. One of them is still frozen — a mud-caked sno-cone slowly oozing in the sun.