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TOAR shows present-day global ozone distribution and trends relevant to health; public database

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Even so, during 2010-2014, people in parts of California, Arizona, Colorado, Texas, the Midwest and the Middle Atlantic still experienced more than 15 days a year in which ozone levels exceeded the US health-based air quality standard of 70 parts per billion (ppb) averaged over eight hours. Source: University of Leicester. Click to enlarge.

Ozone 255
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Study links PM2.5 pollution with millions of preterm births globally

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million preterm births globally—or 18% of all pre-term births—were associated with outdoor exposure to fine particulate matter (PM 2.5 ).The Environment International. million global estimate, and China for about another 500,000. The open-access study is published in the journal. In 2010, an estimated 14.9

Pollution 283
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New international study finds lab testing of diesel NOx emissions underestimates real-world levels by up to 50%

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A new international study has found that laboratory tests of nitrogen oxide emissions from diesel vehicles significantly underestimate the real-world emissions by as much as 50%. The research, led by the International Council on Clean Transportation and Environmental Health Analytics, LLC., —Chris Malley.

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Global Ice Age Climate Patterns Influenced by Bering Strait

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In a vivid example of how a small geographic feature may have far-reaching impacts on climate, new research shows that water levels in the Bering Strait—which separates the US and Russia by only 90 kilometers (56 miles)—helped drive global climate patterns during ice age episodes dating back more than 100,000 years.

Climate 199
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Study Finds Indian Ocean Sea-Level Rise Threatens Coastal Areas; Climate Change Partly Responsible

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The study, led by scientists at the University of Colorado at Boulder (CU) and the National Center for Atmospheric Research (NCAR) in Boulder, Colo., finds that the sea-level rise is at least partly a result of climate change. Global sea-level patterns are not geographically uniform. The Indo-Pacific warm pool. Credit: NASA.

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Discovery of mechanism for atmospheric particle formation suggests need for ammonia emission regulations

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An international team of researchers has shed light on one way new particles are forming in the upper troposphere. All of the scientific uncertainty around climate change relates to clouds in one way or another, said Wang’s advisor and co-author Neil Donahue, professor in chemistry. —Mingyi Wang. —Neil Donahue.

Emissions 186
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Study Finds Unexpected Decadal Decline in Global Evapotranspiration, Links It to Moisture Limitation in Southern Hemisphere

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The soils in large areas of the Southern Hemisphere, including major portions of Australia, Africa and South America, have been drying up in the past decade, according to the first major study of evapotranspiration on a global basis. This is the first time we’ve ever been able to compile observations such as this for a global analysis.

Global 170