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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. People living in parts of southern Europe, South Korea and southern Japan and China also experienced more than 15 days a year of ozone levels above 70 ppb. Trends in daily maximum ozone levels (known as 4MDA8) at urban and non-urban sites.

Ozone 255
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California ARB releases concept paper for public review on reducing short-lived climate pollutants

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The California Air Resources Board (ARB) has released , for public review, a concept paper to initiate discussion on the development of a Short-Lived Climate Pollutant Reduction Strategy. Short-lived climate pollutants (SLCPs) include methane, tropospheric ozone, black carbon, and fluorinated gases.

Pollution 150
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California ARB releases final version of proposed update to Climate Change Scoping Plan; LEV IV

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The California Air Resources Board (ARB) has released. the final version of the proposed First Update to the Climate Change Scoping Plan (First Update). The First Update will be presented to the Board on 22 May 2014 for consideration for approval. The draft version was released in February. Earlier post.).

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Report argues advanced HD natural gas vehicles foundational for California to hit air and climate goals; near zero-emission potential

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The “Pathways to Near-Zero-Emission Natural Gas Heavy Duty Vehicles” report, authored by GNA on behalf of Southern California Gas Co. California policy makers face challenges in devising a pathway that can simultaneously help the state achieve NO x and GHG reduction targets. Background. Click to enlarge.

Climate 257
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California ARB and NOAA Collaborating in $20M Research on Interaction of Air Pollution and Climate Change; One Atmosphere Approach

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Schematic diagram of the trade-offs between the implications for regional air quality and global climate change of new policies for management of the atmosphere. The project builds upon the idea that air quality and climate change issues are linked through “one atmosphere”, an approach that demands coordination and multi-tiered approaches.

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California ARB greenlights states GHG cap-and-trade program

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At its meeting in Sacramento yesterday, the California Air Resources Board (ARB) endorsed the state’s cap-and-trade regulation. A Memorandum of Understanding has already been signed with Chiapas, Mexico, and Acre, Brazil, at the Governor’s Global Climate Summit 3 to establish these offset programs.

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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. Cap-and-trade is another important building block in California’s effort to create a clean and vibrant economy. the destruction of existing stores of ozone-depleting substances in the U.S. Earlier post.)

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