Remove 2012 Remove Climate Change Remove Gas Remove Ozone
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California ARB releases final version of proposed update to Climate Change Scoping Plan; LEV IV

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the final version of the proposed First Update to the Climate Change Scoping Plan (First Update). The AB 32 Scoping Plan, which guides development and implementation of California’s greenhouse gas emission reduction programs. The California Air Resources Board (ARB) has released. The draft version was released in February.

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International study identifies 14 key measures to reduce methane and black carbon emissions; reduction in projected global mean warming of ~0.5 °C by 2050

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Circle areas are proportional to values for (A and B) climate change, (C and D) human health (values for population over age 30), and (E and F) agriculture. Methane is both a potent greenhouse gas and an important precursor to ground-level ozone. Source: Shindell et al. Click to enlarge. —Shindell et al.

Carbon 257
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California ARB soliciting research suggestions for FY 2012-2013 plan; sustainable communities, behavior, pollutant exposure, air pollution science, GHG targets

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The California Air Resources Board (ARB) is soliciting research suggestions for the Fiscal Year 2012-2013 Annual Research Plan in the form of brief conceptual descriptions that address specified research gaps and support the Board’s ongoing regulatory and policy priorities. The deadline to submit research concepts is 31 January 2012.

Pollution 231
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California Air Resources Board adopts GHG cap-and-trade program; first auctions slated for Aug/Nov 2012

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The California Air Resources Board on Thursday adopted the final greenhouse gas (GHG) emissions cap-and-trade regulation. The regulation becomes effective 1 January 2012; first auctions (for 2013 allowances) will be held in August and November, 2012. Compliance obligations for greenhouse gas emissions begins 1 January 2013.

2012 218
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US and UK researchers report direct measurement of key atmospheric reactant; more rapid formation of secondary aerosols

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Credit: Marston (2012), Photo credit: Daniel Stein/Istockphoto.com.Click to enlarge. Our results will have a significant impact on our understanding of the oxidizing capacity of the atmosphere and have wide ranging implications for pollution and climate change. Welz et al. Carl Percival. —Welz et al.

Ozone 268
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Study finds warming caused by synthetic greenhouse gases could outweigh climate benefits from phasing down CFCs

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Chlorofluorocarbons (CFCs)—commonly used in refrigerators and air conditioners—play a role in creating a hole in the ozone layer over Antarctica. 2 in 2020, before declining by approximately 26% by 2050, despite continued growth of fully fluorinated greenhouse gas emissions. —Ronald Prinn. Rigby, M.,

Climate 199
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California 2017 GHG inventory shows 1.2% total drop from 2016; transportation sector emissions up 1%

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The California Air Resources Board’s latest state inventory of greenhouse gas emissions shows that California’s GHG emissions continue to decrease. The percent of biodiesel and renewable diesel in the total diesel blend have shown a significant growth in recent years, going from 1% in 2012 to 18% in 2017.

2017 230