One of the driving forces behind Hurricane Sandy pinwheeling toward the northwest is something called the "Fujiwhara effect".
If Hurricane Sandy hits the East Coast, it won’t be right to call it a hurricane any more. Or even a tropical storm.
As the East Coast tracks Hurricane Sandy's path, the storm is a truly unusual event that commands our attention.
A rare combination of factors may steer Hurricane Sandy into the Northeast as early as this Saturday.
A rogue individual conducting his or her own geoengineering experiment was thought unlikely. Until it happened recently.
As far as drought-stricken states go, Nebraska is at the top, having seen its driest July-to-Sept. period on record.
As intense as the wildfires have been this year, they provide just a glimpse of the future of the American West.
A NASA satellite image clearly shows the record 2012 U.S. drought in the form of unhealthy, thirsty vegetation.