Record warm November continues the trend of a record hot 2015.
For most of the country, winter is warming faster than the other three seasons.
Increasing greenhouse gases are the overwhelming reason why 2015 will be the hottest year on record.
Thanksgiving weather is variable from year to year, but Novembers are trending warmer across the U.S.
Halloween comes during a time of year that has highly variable weather.
This week marks the date of the 30-year future setting from the Back to the Future trilogy.
Global average temperatures are generally higher in El Niño years vs. La Niña years.
Charles David Keeling's measurements provided the first significant evidence of increasing atmospheric carbon dioxide concentration in the atmosphere.