Colorado’s biggest storms can happen anytime, new study finds. Storms show a “diverse seasonality,” following seasonal patterns in some regions, but not others
In a state known for its dramatic weather and climate, Colorado’s history of extreme precipitation varies considerably by season and location, according to research published in the current issue of the Journal of Hydrometeorology.
An international agreement in 2007 to deal with the last remaining ozone-depleting chemicals used in large quantities is working, according to a new analysis published today. Atmospheric emissions of those chemicals, called hydrochlorofluorocarbons (HCFCs) and used in refrigeration and air conditioning, are no longer increasing, after having increased consistently over the past few decades, according to NOAA measurements published in the Journal of Physical Chemistry.
The Larsen C Ice Shelf – whose neighbours Larsen A and B, collapsed in 1995 and 2002 – is thinning from both its surface and beneath, according to an international study published in the journal The Cryosphere, a journal of the European Geophysical Union.
New research reveals a strong connection between high ozone days in the U.S. West during late spring, the stratosphere, and La Niña, an ocean-atmosphere phenomenon that affects global weather patterns.
Ethanol fuel refineries could be releasing much larger amounts of some ozone-forming compounds into the atmosphere than current assessments suggest, according to a new study that found emissions of these chemicals at a major ethanol fuel refinery are many times higher than government estimates.
An international team of scientists is calling for urgent and rigorous monitoring of temperature patterns in mountain regions after compiling evidence that high elevations could be warming faster than previously thought.
A team of scientific investigators is now in the Four Corners region of the U.S. Southwest, aiming to uncover reasons for a mysterious methane hotspot detected from space by a European satellite. The joint project is working to solve the mystery from the air, on the ground, and with mobile laboratories.
Vast regions west of the Mississippi River are under development for oil and gas extraction, and the associated equipment has become a familiar sight on any cross-country road trip or flight. But while one focus is on what comes out of the ground, NOAA and CIRES researchers and their colleagues are studying what escapes to the air—and how it is transformed in the atmosphere and affects air quality and climate.
Every February or March, Arctic sea ice extent reaches its seasonal maximum and begins to break back up again as the sun returns and temperatures warm. This year, that maximum extent was the lowest in the satellite record, according to the National Snow and Ice Data Center (part of CIRES).