Over 2.4 billion years ago, Earth entered one of the most extreme climate events in its history — the Huronian Glaciation.

Three-hundred-million years ago, Earth was very different. The continents had coalesced into Pangea, which was dominated in its equatorial regions by vast coal-swamp forests. With high atmospheric ...

Earth’s rotation is slowing as melting ice moves across the planet. New research says it’s driven by climate change and is ...