Dust from Asia pollutes US, Canada air: study
Dust and aerosol pollution from Asia travels across the ocean and sullies the air in the United States and Canada, possibly worsening the effects of climate change, a study showed Thursday.
SPICE geoengineering project delayed due to critics issues
UN scientists say ozone layer depletion has stopped
The protective ozone layer in the earth's upper atmosphere has stopped thinning and should largely be restored by mid century thanks to a ban on harmful chemicals, UN scientists said on Thursday.
Bytes for bits: Researchers develop a new, efficient aerosol module for climate models
(Phys.org) -- Thinking small, scientists achieved big impact. Pacific Northwest National Laboratory researchers led a team developing a new computational module to depict tiny atmospheric particles that have ...
NASA earth observation satellite fails to reach orbit (Update)
A NASA satellite that aimed to study the impact of aerosols on climate plunged into the Pacific Ocean on Friday, delivering a $424-million blow to the US space agency.
NASA launches weather-climate satellite
The US space agency on Friday launched a first-of-its kind satellite that will send back data on weather and climate to help forecasters predict major storms and other changes in the environment.
Air-quality researchers tackle health implications of ultra-fine particles
(PhysOrg.com) -- Three studies by a University of California, Davis, air-quality research group are adding to the growing body of data suggesting that very fine and ultra-fine airborne metal particles are closely linked to ...
Plumes across the Pacific deliver thousands of microbial species to West Coast
Microorganisms—99 percent more kinds than had been reported in findings published just four months ago – are leaping the biggest gap on the planet. Hitching rides in the upper troposphere, they're making ...
Carbon dioxide controls Earth's temperature
(PhysOrg.com) -- Water vapor and clouds are the major contributors to Earth's greenhouse effect, but a new atmosphere-ocean climate modeling study shows that the planet's temperature ultimately depends on ...
Sulfurous signs of life
Any sulfurous molecules that astronomers spot on alien worlds might be a way to reveal whether or not those distant planets host life, researchers suggest.
Brightening clouds: Atmospheric scientists evaluate a technique for reflecting more sunlight back to space
(PhysOrg.com) -- What happens when tiny seawater particles are intentionally injected into low clouds over the ocean? To answer this question, scientists at Pacific Northwest National Laboratory and the National ...
Tiny particles, big impact
Atmospheric aerosols may be small, ranging in size from a few nanometers to a few microns, but they have a big impact on climate. At the Pacific Northwest National Laboratory, capabilities developed ...
Cloud composition cliffhanger at point reyes national seashore
Turns out, polluted air from San Francisco is not the culprit. It's a thermal trough pushing north from Arizona. In a surprise result, scientists found that this weather pattern significantly affects the chemistry ...
Aerosols affect climate more than satellite estimates predict
Aerosol particles, including soot and sulfur dioxide from burning fossil fuels, essentially mask the effects of greenhouse gases and are at the heart of the biggest uncertainty in climate change prediction. New research from ...