How climate drives bird migration

How climate drives bird migration
A strange form of bird migration fails to follow the usual seasonal pattern. How does climate set the pine siskin to flight? More »

Lycopod Odyssey

Lycopod Odyssey

Meet earth’s ancient land pioneers: the lycopods. Jeff Banca from UC-Berkeley invites a tour of these enigmatic club mosses. More »

Tornado prediction

rubble of buildings and damaged car on side of road, sky still cloudy

Three essential elements drive a tornado: Wet air, dry air, and wind shear. What explains the big improvement in tornado prediction? More »

A climate of extremes?

A climate of extremes?

Are extreme heat, wicked cyclones and record rainfalls signs of climate change, or just more changes in the weather? Will warming More »

Giant snake invasion!

Giant snake invasion!

Pythons, anacondas and boas are breeding in South Florida. What are these snakes eating, besides alligators? Can they be trapped, More »

Globe Heating Up

How do current conditions compare to past predictions of the effects of global warming? Are living on a warming planet? More »