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UMD-led study finds China’s SO2 emissions down 75% since 2007, India’s up 50%; India may now be the top SO2 emitter

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Although China and India remain the world’s largest consumers of coal, a new University of Maryland-led study found that China’s sulfur dioxide emissions fell by 75% since 2007, while India’s emissions increased by 50%. Illustration: Chris McLinden, Environment and Climate Change Canada. Click to enlarge.

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UN Review of Recent Climate Research Concludes That Impacts Of Climate Change Coming Faster Than Anticipated

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Significant climate anomalies 2008/2009. Source: Climate Change Compendium. per year from 2000-2007. In 2007, summer sea ice in the Arctic Ocean shrank to its smallest extent ever, 24% less than the previous record in 2005, and 34% less than the average minimum extent in the period 1970-2000. Click to enlarge.

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Study associates long-term exposure to air pollution with increasing emphysema

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Long-term exposure to ambient air pollutants, especially O 3 (ozone), is significantly associated with increasing emphysema, according to a new study led by the University of Washington, Columbia University and the University at Buffalo. The annual averages of ozone levels in study areas were between about 10 and 25 ppb.

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EPA says methane emissions from natural gas production have dropped 36% from 2007-2011

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In its recently released Inventory of US Greenhouse Gas Emissions and Sinks: 1990 – 2011 ( earlier post ), the US Environmental Protection Agency (EPA) reported that methane (CH 4 ) emissions from the field production of natural gas have declined by 36% from 2007 to 2011 (from 83.1 Climate Change Emissions Natural Gas'

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EPA, NHTSA issue One National Program Rule; EPA withdraws CA waiver for GHG and fuel economy

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EPA finds that California does not need its GHG and ZEV standards to meet compelling and extraordinary conditions because: Those standards address environmental problems that are not particular or unique to California (an argument adduced by the Bush administration’s EPA when it denied California’s waiver request in 2007, earlier post ); and.

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EPA Issues Proposed Endangerment Finding for Greenhouse Gases; Proposed Cause or Contribute Finding Identifies Motor Vehicles as Contributing Source

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After a thorough scientific review ordered in 2007 by the US Supreme Court, the US Environmental Protection Agency (EPA) issued a proposal with two distinct findings regarding greenhouse gases. In both magnitude and probability, climate change is an enormous problem. harm to water resources, agriculture, wildlife and ecosystems.

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

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Emissions from transportation sources were relatively constant from 2002 through 2007, declined through 2013, then increased by 9.0 The transportation sector represents tailpipe emissions from on-road vehicles and direct emissions from other off-road mobile sources. It does not include emissions from petroleum refineries and oil production.

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