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CSIRO study finds ozone uptake in oceans much lower than previously thought

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CSIRO scientists have developed a new way to account for ozone in computer simulations of the climate. This latest modeling shows that the oceans take much less ozone out of the atmosphere than previously thought. Ozone (O 3 ) is formed by reactions of chemicals such as nitrogen oxides and volatile organic compounds—i.e.,

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California 2017 GHG inventory shows 1.2% total drop from 2016; transportation sector emissions up 1%

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In 2017, emissions from GHG emitting activities statewide were 424 million metric tons of CO 2 equivalent (MMTCO 2 e), 5 MMTCO 2 e lower than 2016 levels and 7 MMTCO 2 e below the 2020 GHG Limit of 431 MMTCO 2 e. Changes in emissions by Scoping Plan sector between 2000 and 2017. MMTCO 2 e (6%) from 2013 to 2017. Source: ARB.

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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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The California Air Resources Board released GHG emissions data for 2018 showing that emissions remain below 1990 levels but are effectively flat compared to 2017, while the economy grew by 4.3%. million metric tons in 2017. Transportation emissions declined 1.5 Source: California Air Resources Board (ARB). tons per person to 10.7

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HALO research aircraft measuring the emissions of megacities in EmeRGe project

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However, emissions do not just remain in conurbations; particles and gaseous pollutants can be transported thousands of kilometers by the wind. The University of Bremen is the scientific base of the international project known as EMeRGe (Effect of Megacities on the transport and transformation of pollutants on the Regional and Global scales).

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New international study finds lab testing of diesel NOx emissions underestimates real-world levels by up to 50%

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The research, led by the International Council on Clean Transportation and Environmental Health Analytics, LLC., —Josh Miller, researcher at the International Council on Clean Transportation (ICCT). The team then computed the impacts on health, crops and climate. A paper on the work is published in the journal Nature.

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Test of Planet-Cooling Scheme Could Start in 2022

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Up there, 10 to 50 kilometers above the Earth’s surface, ozone molecules absorb the sun’s ultraviolet light, protecting life far below. Even less is understood about the potential risks to people and the environment—could the particles deplete the ozone layer, for example, or significantly alter the weather? Research takes a long time.

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Calif. ARB releases GHG scoping plan update; more ZEVs, “LEV IV”, MD and HD regulations; ZEV for trucks; more LCFS

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The update identifies eight key sectors for ongoing action: Energy; Transportation, fuels, land use and infrastructure; Agriculture; Water; Waste management; Natural lands; Short-Lived Climate Pollutants (such as methane and black carbon); and Green Buildings. Transportation. million zero emission vehicles on its roads by 2025.