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Modeling study suggests 1.8M excess deaths attributable to urban air pollution in 2019

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A second study, also led by the GWU researchers, finds that nearly 2 million cases of asthma in children are linked to traffic-related nitrogen dioxide air pollution, with two in three occurring in cities. concentrations and associated mortality trends in more than 13,000 cities globally between 2000-2019. This new study examines PM 2.5

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

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Ozone levels across much of North America and Europe dropped significantly between 2000 and 2014. In some parts of Asia, Africa and South America, the researchers identified data gaps which prevented them from characterizing ozone pollution exposure patterns. Source: University of Leicester. Click to enlarge.

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

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Air pollution is the leading environmental cause of death worldwide according to the State of Global Air 2018 , the annual report and interactive website published by the Health Effects Institute (HEI). Millions of people around the world are also exposed to air pollution in their homes arising from the use of solid fuels (e.g.,

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Evidence from glacier ice: Until it was banned, leaded gasoline dominated the anthropogenic lead emissions in South America

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The scientists found that lead from road traffic in the neighboring countries polluted the air twice as heavily as regional mining from the 1960s onwards. Glacier ice is an invaluable archive of past air pollution. Record of the ratio of the lead isotopes 208Pb/207Pb in the Illimani ice core during the period AD 1850–2000.

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IEA: improving efficiency of road-freight transport critical to reduce oil-demand growth; three areas of focus

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Improving the efficiency of road-freight transport is critical to reducing the growth in oil demand, carbon emissions and air pollution over the next decades, according to the International Energy Agency’s latest report, The Future of Trucks: Implications for energy and the environment. —“The Future of Trucks”.

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Cutting Non-CO2 Pollutants Can Delay Abrupt Climate Change; The Fast Action Climate Agenda

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C increase in warming of the Arctic since 1890 as well as significant melting of the Himalaya-Tibetan glaciers that feed the major rivers of Asia, providing fresh water to billions of people. With indoor air pollution killing 1.6 Black carbon is responsible for almost 50% of the 1.9°C Earlier post.). Ramanathan. Tropospheric ozone.

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ICCT study confirms feasibility of implementing IMO Tier III NOx standards using SCR; fuel efficiency gains as well

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Annex VI of the International Convention for the Prevention of Pollution from Ships (MARPOL 73/78) introduced a stepwise approach to the reduction of emissions of NOx from new marine vessels. It is the only technology currently available to achieve compliance with the IMO’s Tier III NO x standards for all applicable engines.

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