Host: Jorge Salazar
Lead Producer: Mike Brennan

ES 22 Producers: Deborah Byrd, Ryan Britton, Emily Howard

Science news of the week:

Carbon nanotubes can be toxic to aquatic animals, according to a new study

The Quake Catcher Network is looking for volunteers to use motion sensors on their personal computers to capture seismic data

July 2012 was the fourth warmest July globally since record keeping began in 1880

Greenland ice melting at record levels

The Northern Wheatear songbird flies nearly 180 miles a day for 2-3 months in its 18,000 mile migration from the Arctic to Sub-Saharan Africa each year

Song of the week:

Split Screen’s “Born” from their new Slip Screens EP.

Image Credit: weirdchina

This week’s featured stories:

Blue Moon Jorge Salazar speaks with skywatcher Deborah Byrd about the blue moon this month, and the folklore that defines a “blue moon”.

Population and Sustainability Jorge talks with biologist Paul Ehrlich, famous for his book “The Population Bomb” about sustainability in a world with over 7 billion people.

Thanks for listening in to your 22 minutes of science and music!

This week’s musical contributors:

Split Screns

Sleep Good

The Black and White Years

Maneja Beto

One Hundred Flowers

EarthSky 22

Thanks for the great response to EarthSky 22! Tell your friends about the best new science podcast on the Internet - 22 minutes of science and music - direct to you from Austin, Texas. Join producer/host Mike Brennan right here every week for EarthSky 22, brought to you by EarthSky: A Clear Voice for Science.