Most Commented Stories Tagged: Boulder

Arts, Culture & Media

Melting Permafrost

For today's Geo Quiz, we head to the frozen north. We have heard a lot about the problem of melting ice as climate change warms up the Arctic. But scientists are also worried about something else that is melting up there — permafrost.

Science, Tech & Environment

Dangerous assumptions

An article in "Nature" asserts that the Intergovernmental Panel on Climate Change has seriously underestimated the technological solutions necessary for the stabilization of the climate. The commentary is titled "Dangerous Assmptions" and it's co-authored by Senior Scientist Tom Wigley of the National Center for Atmospheric Research.

Science, Tech & Environment

Geo answer

The answer to today's Geo Quiz is Cygnus, The Swan. It's a constellation of stars visible in the Northern Hemisphere, and it figures in a science project aimed at mapping light pollution worldwide. Anchor Katy Clark gets details from Dennis Ward, technology specialist for the Windows to the Universe project at the University Corporation for Atmospheric Research (UCAR) in Boulder, Colorado.