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Study: 2/3 of aviation climate impact due to emissions other than CO2

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Net warming from NO x emissions is a sum over warming (short-term ozone increase) and cooling (decreases in methane and stratospheric water vapor, and a long-term decrease in ozone) terms. Both radiative forcing (RF) and effective radiative forcing (ERF) terms and their sums are calculated for the years 2000–2018. Pitari, M.J.

Climate 448
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Study finds rising temperatures increase risk of unhealthy ozone levels absent sharp cuts in precursors

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Ozone pollution across the continental United States will become far more difficult to keep in check as temperatures rise, according to new work led by the National Center for Atmospheric Research (NCAR). Ozone formation. Even short periods of unhealthy ozone levels can cause local death rates to rise. Scenario A2 and RCP 8.5.

Ozone 199
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EPA proposes approval of new ozone plans for the two of the worst Air Quality Zones in US: California’s San Joaquin Valley and South Coast

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US EPA Region 9 8-hour ozone trends, 1979-2000. These State Implementation Plans (SIPs) are the roadmaps to meeting the 1997 8-hour ozone National Ambient Air Quality Standards (NAAQS) of 0.08 In 1997, EPA first established the 8-hour ozone standard, which replaced the older 1-hour ozone standard (0.12 Source: EPA.

Ozone 236
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Reducing Black Carbon Emissions and Ground-Level Ozone Would Provide Immediate Benefit Against Climate Change

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Reducing emissions of black carbon soot and ground-level ozone would quickly make a considerable dent in the climate change problem and would also contribute to public health and protect crop yields, according to an essay in the September/October issue of Foreign Affairs. Besides a danger to breathe, ozone lowers crop yields.

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Latest GHG Inventory shows California remains below 2020 emissions target; much steeper rate of GHG reductions required

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in 2018 (2000-2018 average year-over-year increase is 6.8%), continuing the increasing trend as they replace Ozone Depleting Substances (ODS) being phased out under the 1987 Montreal Protocol. This technology allows emitters to capture the carbon generated by their operations and sequester it underground in secure rock formations.

2020 221
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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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giga tonne carbon dioxide equivalent (GtCO 2 eq) (2.2%) per year from 2000 to 2010 compared to 0.4 GtCO 2 eq (1.3%) per year from 1970 to 2000. Total anthropogenic GHG emissions were the highest in human history from 2000 to 2010 and reached 49 (±4.5) GtCO 2 eq/yr in 2010. to 3% per year. benefits in the short term.

Emissions 257
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PSI team develops web tool for consumers to compare environmental impact of passenger cars in detail

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Deterioration of the ozone layer [kg CFC-11-eq.]. In addition, it can differentiate between a large number of fuels: Besides the common ones, we have also integrated bio- and synthetic fuels of various origins, and we have considered future technologies such as CO 2 capture and storage in hydrogen production. —Romain Sacchi.

Mariner 435