For some states, the coldest day of the year usually occurs near the start of winter, while for others it comes near the end. This map reveals when history says your state will have its coldest day of the year.
The spotlight may have been on California this past summer, but groundwater reservoirs—often the back-up for surface water supplies during prolonged drought—are in decline across much of the southern United States. Meanwhile, people are using millions of gallons of water per day in regions dependent on groundwater aquifers
Since we last covered the California drought, conditions in the state have stayed, well, dry—very dry. Statewide, total precipitation is about equal to or below the lowest three-year period since 1895.
More than halfway through August, the Atlantic Ocean has seen just two named storms. Despite the availability of heat energy at the sea's surface, atmospheric conditions have not been favorable for storm development.
Despite uncertainties around future precipitation change, it is clear that as temperatures rise in Colorado, the state is expected to face significant challenges to managing water resources, according to a new report.
Across the globe, changes in salinity over time generally match changes in precipitation: places where rainfall declines become saltier, while places where rainfall increases become fresher. Where did saltiness change over the past decade?
Observing temperature patterns in the lower stratosphere gives scientists clues about our planet’s changing climate. Global average temperatures in the lower stratosphere for 2013 were slightly below the 1981–2010 average.