Global warming pause linked to sulfur in China
Scientists have come up with a possible explanation for why the rise in Earth's temperature paused for a bit during the 2000s, one of the hottest decades on record.
Volcanic aerosols, not pollutants, tamped down recent Earth warming, study says
A team led by the University of Colorado Boulder looking for clues about why Earth did not warm as much as scientists expected between 2000 and 2010 now thinks the culprits are hiding in plain sight—dozens ...
Red cedar tree study shows that Clean Air Act is reducing pollution, improving forests
A collaborative project involving a Kansas State University ecologist has shown that the Clean Air Act has helped forest systems recover from decades of sulfur pollution and acid rain.
New emissions standards would fuel shift from coal to natural gas
Tougher EPA air-quality standards could spur an increased shift away from coal and toward natural gas for electricity generation, according to a new Duke University study. Complying with stricter regulations on sulfur dioxide, ...
Greenland ice sheet carries evidence of increased atmospheric acidity
(Phys.org)—Research has shown a decrease in levels of the isotope nitrogen-15 in core samples from Greenland ice starting around the time of the Industrial Revolution. The decrease has been attributed to ...
NASA satellite confirms sharp decline in pollution from US coal power plants
A team of scientists have used the Ozone Monitoring Instrument (OMI) on NASA's Aura satellite to confirm major reductions in the levels of a key air pollutant generated by coal power plants in the eastern ...
Worldwide sulfur emissions rose between 2000-2005, after decade of decline
A new analysis of sulfur emissions appearing in the journal Atmospheric Chemistry and Physics shows that after declining for a decade, worldwide emissions rose again in 2000 due largely to international shippi ...
Reducing pollution at national parks: Scientists demonstrate significant improvements in air quality, visibility
(Phys.org) —Air quality and visibility have improved dramatically at national parks and other areas of national scenic value in association with reduced air pollution emissions, according to new data analysis ...
Spoiled opportunity: Harvard expert bemoans squandering of model for cap and trade
In 1990, Northeastern lakes were becoming more acidic, threatening fish and other aquatic life and conjuring images of a future where lakes—even those in remote wilderness—were barren.
Philippine volcano calming; thousands head home
(AP) -- Thousands of villagers evacuated from near the Philippines' most active volcano headed home Saturday after scientists said the rumbling mountain was showing signs it was calming down.
Scientists eye glowing volcano crater in Hawaii
(AP) -- The summit of Hawaii's Kilauea volcano is glowing brightly as molten lava swirls 300 feet below its crater's floor, bubbling near the surface after years of spewing from the volcano's side.
Earth is having a bad acid trip, study finds
Earth may be overdosing on acid - not the "turn on, tune in, drop out" kind, but the "kill fish, kill coral, kill crops" kind. And it's shaping up to be a very bad trip.
Study: Emissions trading doesn't cause pollution 'hot spots'
Programs that allow facilities to buy and sell emission allowances have been popular and effective since they were introduced in the U.S. two decades ago. But critics worry the approach can create heavily polluted "hot spots" ...
Measuring global sulfur dioxide emissions with satellite sensors
Atmospheric sulfur dioxide affects the weather by enhancing cloud formation, and long-term shifts in emissions can change the climate by increasing the planetary albedo. Sulfur dioxide emissions are the basis for acid rain, ...