Triggering turbulence in clear air
New research points to gravity waves, which ripple unseen through the atmosphere, as the culprit in many cases of clear-air turbulence. more>

 

Yes, Virginia, it was cold somewhere
Even as the rest of the nation baked in 2012, Alaska froze. The contiguous 48 U.S. states saw their warmest year on record by far, but it was one of Alaska's chilliest. more>

 

In a recent paper, NCAR scientist Tom Wigley and longtime colleague Ben Santer (Lawrence Livermore National Laboratory) cast new light on one of the most prominent findings of the last major IPCC report, issued in 2007. more>