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Study of lead isotopes provides insight into aerosols transport from Asia to US

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About a third of the airborne lead particles collected at two sites in the San Francisco Bay Area came from Asia, a finding that underscores the far-flung impacts of air pollution and heralds a new way to learn more about its journey across vast distances. —John Christensen. —John Christensen. Stephanie A. Ewing, John N.

Asia 199
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New analysis finds Asia produces twice as much mercury emissions as previously thought

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New analysis by an international team led by MIT researchers shows that Asia now releases a surprisingly large amount of anthropogenic mercury. The result of this work, researchers say, could improve estimates of mercury pollution, and help refine pollution-control strategies around the world. It was higher than we expected.

Mercury 150
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IEF, IHS Markit: deepening underinvestment in hydrocarbons raises specter of continued price shocks and volatility

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The energy crisis in Europe and Asia this winter is a preview of what we can expect in the years ahead. Two years in a row of large and abrupt underinvestment in oil and gas development is a recipe for higher prices and volatility later this decade.

Price 416
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MIT Report Finds Natural Gas Has Significant Potential to Displace Coal, Reducing Greenhouse Gas Emissions; Role in Transportation More Limited

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Natural gas will play a leading role in reducing greenhouse-gas emissions over the next several decades, largely by replacing older, inefficient coal plants with highly efficient combined-cycle gas generation, according to a major new interim report out from MIT. The first two reports dealt with nuclear power (2003) and coal (2007).

MIT 240
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Final session on international mercury convention this week expected to culminate in agreement; UNEP Global Mercury Assessment 2013 finds industrial source Hg emissions may be rising

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Unintentional emission sectors: Coal burning, ferrous- and non-ferrous (Au, Cu, Hg, Pb, Zn) metal production, cement production. Apart from contaminated sites, the mercury pollution detected today is often found in locations very far away from its original source. Source: UNEP. Click to enlarge.

Mercury 262
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Researchers identify new nitrated PAH compounds from combustion that are hundreds of times more mutagenic than parent PAHs

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These new compounds were not previously known to exist, and raise additional concerns about the health impacts of heavily-polluted urban air or dietary exposure. PAHs form naturally as the result of almost any type of combustion, from a wood stove to an automobile engine, cigarette or a coal-fired power plant. Staci Simonich.

Pollution 275
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Asian Development Bank providing $300M towards replacing 100K gasoline trikes with E-Trikes in the Philippines; $300M for major road upgrades in Chhattisgarh, India

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Based on an ADB study, gasoline-fueled tricycles are responsible for more than two-thirds of all air pollution generated by the country’s entire transport sector. —Juan Miranda, Director General of ADB’s South Asia Department. More than 40% of Chhattisgarh’s 21 million residents live below the poverty line.