How Does an iPod Affect a Polar Bear?

Photo courtesy of Amanda Graham (Yukon White Light) via Flickr.
When we talk about the problems of global climate change, we tend to focus on cars and coal-burning power plants as major contributors. Yet there are other significant players, including consumer electronics. The number of cell phones, MP3 players, […]

If you’ve taught plate tectonics at the middle school level, you’re probably quite familiar with the supercontinent Pangaea. But did you know that Pangaea was not the only supercontinent in earth’s history – just the last to date? Millions of years before Pangaea, another supercontinent known as Rodinia united all of earth’s landmass in an […]