Remove 2007 Remove Carbon Remove Ozone
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North American Countries Target “Super” Greenhouse Gases Through Strengthened Ozone Treaty

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The US, Canada, and Mexico have submitted a proposal to strengthen climate protection under the Montreal Protocol— the international treaty that phases out the production of a number of substances responsible for ozone depletion. Uncontrolled growth of HFCs will offset the benefits of reducing carbon dioxide. Source: IGSD.

Ozone 170
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CRC ACES Phase 2 report finds emissions from modern heavy-duty diesels well below required levels

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2010 engines emissions reduction relative to 2010, 2007, and 2004 US emission standards. Emissions of carbon monoxide and hydrocarbons were also significantly below required 2010 levels: 97% and more than 99.9%, respectively. g/hp-hr between 2007 and 2009 to a level less than or equal to 0.20 Source: CRC. Click to enlarge.

Diesel 296
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UN Review of Recent Climate Research Concludes That Impacts Of Climate Change Coming Faster Than Anticipated

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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.

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Emissions of Air Pollutants down in EU-27

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The European Community’s air pollutant emission inventory report released by the European Environment Agency finds that in 2007, sulphur oxides (SO x ) emissions were down by 72 % from 1990 levels. EU-27 emissions of all four pollutants were lower in 2007 than in 2006.

Pollution 236
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Study projects net cooling of climate from ship emissions through 2050

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1 from shipping in 2007, corresponding to 3.3% 1 of the total ship emissions in 2007. In addition to CO 2 , other compounds such as ozone (O 3 ) precursors (nitrogen oxides (NO x =NO+NO 2 ), carbon monoxide (CO), and volatile organic compounds (VOCs)) and aerosols such as black carbon (BC) and organic carbon (OC) are emitted by ships.

Climate 240
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WMO: Atmospheric Concentrations of Main Greenhouse Gases in 2008 Set New Highs

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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 from 2007 to 2008. ppm, CH 4 at 1,797 ppb and N 2 O at 321.8 since 1990 and by 1.3%

2008 218
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Volkswagen to use CO2 as refrigerant for future air conditioning systems

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R134a replaced CFC-12 as the MAC refrigerant in the early 1990s due to the negative impact of CFCs on the Earth’s ozone layer. HFC-152a, HFO-1234yf, and carbon dioxide are alternatives that may substantially reduce climate impacts and meet safety standards.A transition to a new refrigerant is not easy. Mahmoud Ghodbane, Timothy D.

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