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New Tar Sands Impact on Climate, Air Quality Found

New Tar Sands Impact on Climate, Air Quality Found

In one of the first studies of its kind, scientists have found that tar sands production in Canada is one of North America’s largest sources of secondary organic aerosols — air pollutants that affect the climate, cloud formation and public health. The study, published Wednesday in the journal Nature, showed that the production of tar sands and … Read More

Acidifying Waters Put Dungeness Crabs at Risk

Acidifying Waters Put Dungeness Crabs at Risk

Research published this month could give a crab connoisseur a case of acid reflux. Scientists reported in the journal Marine Biology that ocean acidification, which is caused when carbon dioxide pollution dissolves into oceans, can kill and stunt young crabs, potentially jeopardizing whole populations. “It’s something that’s projected into the … Read More

U.S. Leads Globe in Oil Production for Third Year

U.S. Leads Globe in Oil Production for Third Year

The U.S. led the world last year in producing both oil and gas, federal government estimates published Monday show, even as the country committed to cutting greenhouse gas emissions. … Read More

Abrupt Atlantic Ocean Changes May Have Been Natural

Abrupt Atlantic Ocean Changes May Have Been Natural

Climate change may not have been to blame for an abrupt recent slowdown of a sweeping Atlantic Ocean current, a change that delivered an intense pulse of ocean warming and sea level rise through the Gulf of Maine and elsewhere along the East Coast. Modeling-based analysis by British scientists, published Monday in Nature Geoscience, concluded that … Read More

‘99 Percent Chance’ 2016 Will Be Hottest Year

‘99 Percent Chance’ 2016 Will Be Hottest Year

Odds are increasing that 2016 will be the hottest year on the books, as April continued a remarkable streak of record-warm months. Last month was rated as the warmest April on record by both NASA and the National Oceanic and Atmospheric Administration, which released their data this week. In the temperature annals kept by NOAA, it marked the 12th … Read More

Power Plant Emissions Fall to Lowest Level in Decades

Power Plant Emissions Fall to Lowest Level in Decades

Carbon dioxide emissions from electric power plants have fallen to their lowest level in decades, and that trend could help states meet their emissions goals under the Obama administration’s Clean Power Plan if it survives court challenges, according to new U.S. Energy Information Administration data and a New York University analysis. Carbon … Read More

Sea Level Rise Could Help Marshes Ease Flooding

Sea Level Rise Could Help Marshes Ease Flooding

Along the mid-Atlantic coast, where waters are rising quickly, marshes are on the march, consuming forestland, farms and yards. “Habitats are changing fast here,” said Matt Whitbeck, a biologist at the Blackwater National Wildlife Refuge in Maryland, where dead trees still jut from young marshes. Newly published modeling shows that a looming… Read More

CO2 Nears Peak: Are We Permanently Above 400 PPM?

CO2 Nears Peak: Are We Permanently Above 400 PPM?

Just three years ago this month, the carbon dioxide monitoring station atop Hawaii’s Mauna Loa reached a significant milestone: the first measurement of CO2 concentrations that exceeded the benchmark of 400 parts per million (ppm). Now, they may never again dip below it. As CO2 levels once again approach their annual apex, they have reached… Read More

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California Drought Intensifies The relentless heat that has plagued the western half of the country this summer has ratcheted up California’s terrible drought.

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