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Researchers in France have found that ozone depletion above Antarctica has significantly reduced the Southern Ocean’s ability to absorb atmospheric CO 2 and has also accelerated acidification of southern polar waters, despite lesser CO 2 uptake. The results revealed that, between 1987 and 2004, around 2.3 Earlier post.)
NOAA’s updated Annual Greenhouse Gas Index (AGGI), which measures the direct climate influence of many greenhouse gases such as carbon dioxide and methane, shows a continued steady upward trend. Started in 2004, the AGGI reached 1.29 NOAA researchers developed the AGGI in 2004 and have so far back calculated it to 1978.
2010 engines emissions reduction relative to 2010, 2007, and 2004 US emission standards. earlier post ), found that emissions of NO 2 and other nitrogen oxides—which can have direct health effects and contribute to the formation of smog—were approximately 61% below the 2010 EPA standard and 99% lower than in 2004 engines.
systems in areas classified “Serious,” “Severe,” or “Extreme” for nonattainment of the ozone national ambient air quality standard (NAAQS). ORVR systems are carbon canisters installed in vehicles to capture gasoline vapors evacuated from the gasoline tank before they reach the pump nozzle. Storage Tanks (Tom Driscoll, EPA).
Panels show (a) PM 2.5 , (b) elemental carbon (EC), (c) NO x , (d) CO, (e) formaldehyde, and (f) sum of target VOCs. Among the findings were that at idle, B20 increased engine-out and DOC-out emission rates of CO, NMHC, PM 2.5 , elemental carbon (EC), formaldehyde, benzene, and other VOCs (volatile organic compounds) for both the 1.7
Ocean acidification caused by the absorption of carbon dioxide in seawater is already increasing along the California coast decades earlier than existing models predict. The growth in carbon dioxide emissions from energy and industry has exceeded even the most fossil-fuel intensive scenario developed by the IPCC at the end of the 1990s.
The latest analysis of observations from WMO’s Global Atmosphere Watch (GAW) Programme for 2008 shows that the globally averaged mixing ratios of carbon dioxide (CO 2 ), methane (CH 4 ) and nitrous oxide (N 2 O) reached new highs with CO 2 at 385.2 The globally averaged mixing ratio of carbon dioxide (CO 2 ) in 2008 was 385.2
In addition, a single-walled carbon nanotube (SWCNT) anode technology for possible future use in these batteries was assessed. However, with ozone depletion and occupational cancer hazard, lower impacts are observed under the IL smart charging scenario, due to lower emissions of halogenated compounds and formaldehyde, respectively.
The on-road transportation (ORT) and power generation (PG) sectors are major contributors to CO 2 emissions and a host of short-lived radiatively-active air pollutants, including tropospheric ozone and fine aerosol particles, that exert complex influences on global climate. Unger et al. Click to enlarge.
In 2004, the Centralina region (the Greater Charlotte metro area, which straddles the North CarolinaSouth Carolina border) was designated as a non-attainment area for ozone under the Clean Air Act. The area stood to lose billions of dollars of federal funding for a wide variety of projects if the areas air quality didnt improve.
Those vertical movements provide a pathway for black carbon, sulfur dioxide, nitrogen oxides, and other pollutants to ascend into the stratosphere, about 20-25 miles above the Earth’s surface. This could explain satellite measurements showing high levels of stratospheric ozone, water vapor and other chemicals over Asia during summer.
In 2014, Volkswagen of America announced that starting with the launch of the zero-tailpipe emissions battery-electric 2015 e-Golf ( earlier post ), it would invest in projects to offset the carbon emissions created from the e-Golf on a full lifecycle basis: production, distribution and up to approximately 36,000 miles (57,936 km) of driving.
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. Background.
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