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New inventory of black carbon emissions from China finds 2007 levels higher than previously reported

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BC emission map of China at 0.1° × 0.1° Major emission areas are marked. A new black carbon (BC) emissions inventory from China found BC emissions levels in 2007 of 1,957 Gg BC—higher than reported in earlier studies. for year 2007. Credit: ACS, Wang et al. Click to enlarge. Earlier post.). Credit: ACS, Wang et al.

2007 271
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HEI: 95%+ of world’s population live in areas of unhealthy air

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Comparison of 2016 annual average PM 2.5 coal, wood, and dung) for cooking and heating. billion people—one in three global citizens—were exposed to household air pollution from the use of solid fuels (for example, coal, wood, charcoal, dung, or other biomass) for cooking and heating. State of Global Air 2018.

Pollution 218
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UNICEF: 300M children worldwide breathing air exceeding WHO pollution guidelines by 6x or more

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The report, “ Clear the Air for Children ”, uses satellite imagery to show that some 2 billion children live in areas where outdoor air pollution, caused by factors such as vehicle emissions, heavy use of fossil fuels, dust and burning of waste, exceeds WHO minimum air quality guidelines. No society can afford to ignore air pollution.

Pollution 150
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WHO data: global annual PM10 increased by 6% during recent 3-year period; based on data from 851 cities

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population weighted comparisons in annual mean PM 10 for a three?year year comparisons do not necessarily represent trends, in particular when changes are limited. Afr: Africa; Amr: America; Emr: Eastern Mediterranean; Eur: Europe; Sear: South?East Emissions Health' Regional city?population Source: WHO. Click to enlarge.

Global 239
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Study finds rising temperatures increase risk of unhealthy ozone levels absent sharp cuts in precursors

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The study shows that Americans face the risk of a 70% increase in unhealthy summertime ozone levels by 2050, assuming continued greenhouse gas emissions with resultant significant warming (IPCC Scenario A2 and RCP (Representative Concentration Pathway) 8.5.). In the other, emissions would be cut by 60-70%. Scenario A2 and RCP 8.5.

Ozone 199
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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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Comparison of Hg emissions in 2005 and 2010, by selected sector and region. Unintentional emission sectors: Coal burning, ferrous- and non-ferrous (Au, Cu, Hg, Pb, Zn) metal production, cement production. Intentional-use sectors: Disposal and incineration of product waste, cremation emissions, chlor-alkali industry.

Mercury 262
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IEA World Energy Outlook view on the transport sector to 2035; passenger car fleet doubling to almost 1.7B units, driving oil demand up to 99 mb/d; reconfirming the end of cheap oil

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Although the recovery in the world economy since 2009 has been uneven, and future economic prospects remain uncertain, global primary energy demand rebounded by a remarkable 5% in 2010, pushing CO 2 emissions to a new high. Subsidies that encourage wasteful consumption of fossil fuels jumped to over $400 billion.

Oil 247