A Tennessee philosopher and Christian environmentalist debate the moral imperative for action on climate change.
Tropical Storm Andrea is weakening, but is dumping very heavy rain from South Carolina northeastward to Maine.
Tropical Storm Andrea in the Gulf of Mexico threatens to spread heavy rain from Miami to Massachusetts.
A rare May snowstorm shattered snowfall records in three states, while bringing the threat of more flooding.
A rare May snowstorm narrowly missed Minneapolis-St. Paul, dumping more than a foot of snow outside the cities.
Dangerous heat is scorching a region from Kansas to Mississippi, with all-time temperature records in jeopardy.
High temperatures are soaring into the triple digits from Oklahoma to Arkansas, as the record warm summer of 2012 drags on.
Thanks to NASA, the graceful swirls and whorls of the Mississippi River as seen from space.