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BNEF: wind and solar boost cost-competitiveness versus fossil fuels

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This year has brought a significant shift in the generating cost comparison between renewable energy and fossil fuels, according to detailed analysis by technology and region, published this week by Bloomberg New Energy Finance. —Seb Henbest, head of Europe, Middle East and Africa at BNEF.

Wind 150
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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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New inventory of black carbon emissions from China finds 2007 levels higher than previously reported

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Comparison of relative contributions from various sources to total BC emissions between China and other countries/regions including India, North America, and Africa. As a result, the use of coal from small local mines is included in the provincial statistics, but not in the national statistics. Credit: ACS, Wang et al.

2007 271
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UNICEF: 300M children worldwide breathing air exceeding WHO pollution guidelines by 6x or more

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According to the analysis, South Asia has the largest number of children living in these areas, at 620 million, with Africa following at 520 million children. No society can afford to ignore air pollution. —UNICEF Executive Director Anthony Lake. The imperative for green investments could not be stronger.

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 Regional city?population Source: WHO. Click to enlarge. and middle?income;

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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These gases come from human activities such as combustion of coal and oil as well as natural sources such as emissions from plants. A comparison of regional to global model projections shows that the global model is biased high in surface ozone compared to the regional model and compared to observations. Pfister, G. Walters, J.-F.

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. Artisanal and small-scale gold mining and coal burning are the major sources of anthropogenic mercury emissions to air.

Mercury 262