Related topics: climate change · changing climate

When lush deciduous forests covered the Arctic

Around 50 million years ago there were extensive, lush deciduous forests in the polar regions of the Arctic, where today there is sparse vegetation. The forests existed due to the conditions in the Eocene—a combination ...

A whale's tale: The story hidden in their mouths

Baleen plates—the signature bristle-like apparatus toothless whales use to feed—reveal how these large aquatic mammals adapt to environmental changes over time.

In years after El Niño, global economy loses trillions

In the years it strikes, the band of warm ocean water spanning from South America to Asia known as El Niño triggers far-reaching changes in weather that result in devastating floods, crop-killing droughts, plummeting fish ...

International team starts on drilling expedition

The Earth's Cenozoic Era began 66 million years ago with a bang—and with the last mass extinction event on Earth until now. The meteorite impact that marked the end of the Cretaceous Period and the beginning of the Cenozoic ...

Fire tornadoes explained

The roaring Bootleg Fire burning up swaths of southwestern Oregon is the nation's largest wildfire so far this year and intense enough that it's triggering weather phenomena, including lightning, massive columns of smoke ...

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