Remove 2000 Remove Cost Remove Emissions Remove Ozone
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UN report projects that increasing use of HFCs likely to have a significant climate impact by 2050; equivalent to current total annual emissions from transport

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The decrease in CO 2 equivalent emissions of ODSs (ozone-depleting substances: CFCs, halons, HCFCs, and others) may be offset by the projected increase in their non-ozone depleting substitutes (HFCs) (lines designated as HFC scenarios). W m -2 relative to 2000. Climate and the Ozone Layer. Source: UNEP.

Climate 287
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IPCC: GHG emissions accelerating despite mitigation efforts; major institutional and technological change required to keep the heat down

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Decomposition of the decadal change in total global CO 2 emissions from fossil fuel combustion by four driving factors; population, income (GDP) per capita, energy intensity of GDP and carbon intensity of energy. giga tonne carbon dioxide equivalent (GtCO 2 eq) (2.2%) per year from 2000 to 2010 compared to 0.4 Click to enlarge.

Emissions 257
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EPA to begin work on proposed rulemaking for on-road heavy-duty ultra-low NOx standard for MY 2024

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Earlier this year, the US Environmental Protection Agency (EPA) received several petitions from state and local government agencies from across the country and other organizations to increase the stringency of the on-highway heavy-duty engine NO x emission standards from 0.2 grams per brake horsepower-hour (g/bhp-hr) to 0.02

EPA 150
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EEA report finds most Europeans in cities still exposed to levels of air pollution exceeding WHO guidelines

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20 % of stations registered concentrations above the EU ozone (O 3 ) target value for the protection of human health. The percentage of the EU-28 urban population exposed to O 3 levels exceeding the WHO AQG value was 96% in 2017—showing scarcely any fluctuation since 2000.

Pollution 170
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US NOx Cap and Trade Program Lowers Smog Levels in Eastern United States

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The existing US NO x cap-and-trade program lowered 2008 summertime NO x emissions from power plants and large industrial sources 62% compared to year 2000 levels and 75% lower than in 1990, according to a report released by the US Environmental Protection Agency (EPA). Source: EPA. Click to enlarge.

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EPA report to Congress finds a strong scientific and technical foundation for mitigating black carbon emissions

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positive or negative—and magnitude of net climate forcing from BC emissions), currently available scientific and technical information provides a strong foundation for making mitigation decisions to achieve lasting benefits for public health, the environment, and climate. emissions in 2005. Earlier post.). Source: EPA.

Congress 252
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California ARB Seeks Further Reductions of Diesel Emissions at State Rail Yards

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The California Air Resources Board directed its staff to take steps to provide further locomotive and rail yard emission reductions beyond those achieved by existing US Environmental Protection Agency and state regulations and agreements. While we are pleased to have already reduced diesel emissions at the rail yards, it’s not enough.

Diesel 170