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International study identifies 14 key measures to reduce methane and black carbon emissions; reduction in projected global mean warming of ~0.5 °C by 2050

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Seven measures target CH 4 emissions, covering coal mining, oil and gas production, long-distance gas transmission, municipal waste and landfills, wastewater, livestock manure, and rice paddies. The screening revealed that the top 14 measures realized nearly 90% of the maximum reduction in net GWP. Shindell et al., Supplementary material.

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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. Artisanal and small-scale gold mining and coal burning are the major sources of anthropogenic mercury emissions to air. Use of coal for power generation and industry is increasing, especially in Asia.

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