Topic: Planet Earth
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Polar Extremes
Paleontologist Kirk Johnson explores the dynamic history—and future—of ice at the poles.
Featured Content: Planet Earth
Explore Topic: Planet Earth
Arctic Sinkholes
In the Arctic, enormous releases of methane, a potent greenhouse gas, threaten the climate.
MOSAiC Scientists Measure Arctic Sea Ice Volume
Just how much ice is in the Arctic Ocean?
The Arctic Jet Stream Affects Global Climate. Here's Why.
The jet stream is a band of wind that influences weather in the northern hemisphere.
Lights Flashed in the Sky During Mexico's Latest Earthquake
On September 7, 2021, a magnitude 7.0 earthquake rocked southwest Mexico.
How aluminum wrap protects sequoias from wildfire
The material, developed from fire shelters used by wildland firefighters, is often wrapped around at-risk buildings in national parks. Now, it’s protecting some of the biggest trees on Earth.
How Wildfires and Ozone Led to Terrible Air Quality
Here’s how poor air quality can lead to serious health effects.
Arctic Drift
Join scientists on a daring polar voyage to uncover the Arctic’s climate secrets.