Can't see the Tundra for the Trees
A study in Canada revealed that the tundra is shrinking in response to global warming.

CO2 Rising Ever Faster
Carbon dioxide emissions are accelerating everywhere and even the IPCC didn't see it coming. What explains the increase?

US Mortality Likely To Rise As Climate Changes
Increases in extreme hot weather due to global warming may lead to increased mortality. Which cities will be hit hardest?

Shrinking Coral
A new study shows dramatic coral declines at protected and unprotected reefs alike.

Trouble in the Tropics
Tropical species may be at greatest risk for extinction due to climate change.

Lake Tanganyika Heating Up, Warmest In 1,500 Years
Lake Tanganyika in east Africa is getting warmer, say geologists from Brown University.

Particles of Science

Two Scientists Walk Into a Bar

Need a laugh? Get some good science jokes (and a bunch of groaners, too) in our chat with three science comedians.

Secret To Eternal Life...For Xmas Trees

Raj Lada is on a quest to keep your Christmas tree thriving in the afterlife. Get his embalming tips.

Your Lichen Glamour Shots

SciFri listeners from across the country sent in photos of lichens from their neighborhoods. Lichenologist James Lendemer identified them. Check it out!

Geek 2.0

Have you noticed that the word "geek" has gotten a little chic? Maybe it's time for a new term for those of us true geeks. Tell us your suggestion for the new geek.