As March begins, does that mean it's officially spring for the northern hemisphere? Mark Thompson gives his astronomical opinion.
As we near the shortest day of the year, scientists find that people fall into one of four categories when it comes to moods and weather.
During a 2003 heat wave, 4,867 people in Paris and nighttime temperatures were mostly to blame.
At a time when climate scientists are predicting more frequent and longer heat waves, this isn't good news.
Despite sharp regional shifts, another Northern Hemisphere summer passes with unusually high temperatures across the globe.
This summer's record heat waves are just a taste of things to come.
Hurricane Earl pounded North Carolina on Friday as it sped up the U.S. East Coast, threatening dangerous waves and riptides across the eastern seaboard.
Weather scientists see upper air links between Russian heat and Asian floods -- and signs of global warming.
Record heat and floods in Europe and Asia match climatologists' predictions, but experts are cautious about interpreting events as signs of man-made warming.
Next time you're packing your towel and sunscreen for a trip to the beach, you may want to check water quality reports, too.