Frozen air from Antarctica is giving scientists a longer look at a climate mystery that has lingered for decades: why Earth ...

Scientists have long known that Earth was significantly warmer about 3 million years ago, with much higher sea levels.

Earth’s climate is wildly out of balance, and there is no precedent in recorded history for what is happening now on our ...

To spread awareness that “climate change isn’t just an environmental issue; it’s a human story woven into the fabric of our civilization’s rise and fall,” Georgetown University historian Professor ...

Earth is surrounded by an immense magnetic field, called the magnetosphere. Generated by powerful, dynamic forces at the center of our world, our magnetosphere shields us from erosion of our ...

At the edge of East Antarctica, where the wind howls through a white emptiness and the air bites harder than steel, scientists uncovered something so old it makes even time feel young. Beneath that ...

The Fertile Crescent, a boomerang-shaped region spanning modern-day Middle Eastern countries, is considered the cradle of civilization and where farming first emerged. But little is known about how ...

Our species likes it cold. Homo sapiens evolved in — and still inhabits — one of Earth’s rare and fragile ice ages, periods distinguished not by an abundance of saber-toothed cats and woolly mammoths ...

Smithsonian researcher Ingrid Romero studies fossil pollen to reconstruct ancient climates and predict future changes Erin Wunderlich Researcher Ingrid Romero holds a case full of pollen slides at the ...

An international team has successfully extracted the world's oldest ice sample from Antarctica. Spanning 1.2 million years of climate history, this ancient ice core promises to unveil secrets about ...

Humans have been recording the weather for thousands of years. Antarctic ice, however, has been at it for over a million. An international team of scientists has extracted a 1.74-mile-long (2.8 ...

From a sub-freezing temps to sweltering summer heat, April can bring some wild temperature swings.