May 20, 2015
Researchers armed with more than 100 scientific instruments will spend six weeks this summer probing nocturnal thunderstorms on the Great Plains.
NCAR S-Pol Portable Doppler radar; will be used to study nighttime thunderstorms
May 18, 2015
The interaction of a warming climate with a growing, shifting population could subject more people to sweltering conditions.
Exposure to extreme heat could rise: Graph shows regional increases

A team led by environmental engineers from Drexel University are the first independent researchers to take a closer look at the air quality effects of natural gas extraction in the Marcellus Shale region of Pennsylvania. 

Using an Aerodyne Research, Inc. Mobile Laboratory and fence line tracer-release protocol, the team was able to measure emissions without having direct access to the sites.

During the summer of 2015, Penn State researchers are partnering with the National Center for Atmospheric Research (NCAR) to investigate a major obstacle facing renewable energy — uncertainty in energy production due to atmospheric conditions like cloud cover or wind speed.

Guido Cervone makes adjustments to one of the National Center for Atmospheric Research’s Total Sky Imager machines. Cervone and his research team will spend three months at NCAR’s facilities in Boulder, Colorado, researching the uncertainties associated with renewable energy production.  Image:  Guido Cervone
May 13, 2015 | Before the Rio Grande wends 1,900 miles across the desert Southwest, trickling to its end in the Gulf of Mexico, it begins life as a snow-fed stream in the mountains of Colorado. Despite its relatively short journey through the state, the Rio Grande depends on melting snow in the mountains ringing Colorado's San Luis Valley to deliver a significant portion of the water that will supply farmers and towns downstream in New Mexico, Texas, and, if there's enough left, Mexico.
Forecasting water supply: A technician conducts a snow survey in the Conejos River basin
April 1, 2015 | Tropical forests play a major role in the planet’s carbon cycle, but there are a lot of uncertainties about how they will respond to climate change. A new international project aims to bring the future of tropical forests into much clearer focus.
Climate and tropical forests: photo of tropical rainforest
April 29, 2015 | Just as waves ripple across a pond when a tossed stone disturbs the water’s surface, gravity waves ripple toward space from disturbances in the lower atmosphere.
Invisible waves visualized: still from high-resolution simulation of north-south winds about 60 miles above Earth
April 20, 2015 | One of the great climate mysteries that scientists are working to solve is how trees and other plants respond to a more carbon-rich atmosphere.
Predicting plant uptake of carbon: photo of trees and ferns in Costa Rica
February 24, 2015 | Earth’s weather extends into higher regions of the atmosphere than the one we inhabit. But the influence of those regions has been challenging to chart until recently.
Impacts of atmospheric waves: Photo of EISCAT Svalbard incoherent scatter radar
Matt Kelsch • January 28, 2014 | As this week’s blizzard rumbled toward the U.S. Northeast, many media outlets posted the top-10 snow events for major cities.
Snowfall measurement: cars buried under lots of snow