NOAA scientists have documented a new impact of the increasingly thin blanket of Arctic sea ice: gases escaping from the thinner ice in spring are affecting air chemistry, reducing ground-level ozone, and likely increasing mercury contamination.

Since the beginning of 2012, drought conditions have worsened along the eastern seaboard, adding to a dry picture for much of the United States.

Since the beginning of 2012, the contiguous United States has been experiencing drier than average conditions. This lack of precipitation is affecting water availability for agriculture and municipal use, as well as increasing concerns about soil quality and wildfires.

From poor soil to scorching summer heat, farmers in the U.S. Southeast face some significant challenges. Two Southeast growers are looking to seasonal climate forecasts to give them an edge.

After a record-breaking drought last summer, dry conditions continue to linger in large portions of the South this spring.

Grower Kirk Brock talks about adapting to rainfall extremes on his dryland farm in Florida and how seasonal climate forecasts should help him improve his operation.

Alabama farmer Myron Johnson talks about how adding seasonal climate outlooks to his decisions about when to plant and harvest his cover crops helped produce a bumper cotton crop during the 2010 growing season.

Temperatures in the eastern tropical Pacific Ocean swing back and forth like an irregular pendulum. The cool phase—which the Pacific has been in for the past two winters—is called La Niña. According to NOAA’s April 2012 ENSO Diagnostics Discussion, La Niña is fading and will likely be over by the end of April.

NCDC climate scientist Deke Arndt talks about the record March heat and the cumulative effect of a warm fall, winter, and early spring on “heating degree days”—an estimate of the energy demand during the U.S. cold season.

Although solar flares can bombard Earth’s outermost atmosphere with tremendous amounts of energy, most of that energy is reflected back into space by the Earth’s magnetic field or radiated back to space as heat by the thermosphere.