6:56
What Happened The Last Time Earth Got Hot Quickly?
Plus, 13,000-year-old footprints, the James Webb telescope is delayed, and a rogue satellite makes a timely landing.
Breakthrough
Meet scientists who are overcoming insurmountable obstacles to pave new paths in STEM.
How Shrinking Sea Ice May Be Shrinking Polar Bears
How is the body mass of polar bears changing as sea ice disappears? The answer may depend on where they live and feed.
4:35
In Idaho, A Battle Over Climate In The Classroom
The Idaho legislature is debating how to address human-induced climate change in revised science education standards.
5:01
The Earth’s Ozone Woes Haven’t Gone Away Yet
While the ozone layer above the poles is on the mend, the health of the layer in middle latitudes is less clear.
How Jellyfish Helped A Marine Biologist Find Her Calling
Juli Berwald recounts not the not-so-straight path that led to her work as a marine biologist.
12:05
The Fiery Mountains Under The Sea
Most of the world’s volcanic activity happens under the sea—but we know very little about it.
Breakthrough: Bitter Water
For Navajo hydrologist Karletta Chief, water is sacred. When a mine spill contaminated a vital river in the Navajo Nation, she decides to investigate the potential environmental and health impacts it had on her community.