Fifty Million Years Ago, the Arctic Was a Warm Swamp
Think you know what the Arctic looked like during the Eocene Epoch? Play NOVA’s Polar Lab to find out: You might be surprised by the plants and animals that used to call it home.
Trees have an environmental record etched into their very wood.
Together, all the cars on Earth would leave quite the pile of carbon behind—every day.
Learn more about a lush forest that once dominated the Arctic.
Scientists dig up ancient clams from the ocean 90 miles from the nearest beach.
Carbon dioxide acts like a heat-trapping blanket, warming our planet.
What if carbon dioxide pollution were solid carbon chunks?
Warming ocean water is eating away at Greenland's glaciers from below.
See how one small town’s survival is threatened by climate change.
Learn more about our planet’s Hothouse and Icehouse climates.
Explore this spectacular, icy cave.
Lake mud from the Russian Arctic tells us that Earth's climate has oscillated in the past.
Understand climate time.