Green Car Congress
MAY 17, 2018
Emissions of one of the chemicals most responsible for the Antarctic ozone hole are on the rise, despite an international treaty that required an end to its production in 2010, a new study by researchers at NOAA and their colleagues shows. —NOAA scientist Stephen Montzka, lead author of the paper.
Green Car Congress
SEPTEMBER 9, 2011
US EPA Region 9 8-hour ozone trends, 1979-2000. These State Implementation Plans (SIPs) are the roadmaps to meeting the 1997 8-hour ozone National Ambient Air Quality Standards (NAAQS) of 0.08 In 1997, EPA first established the 8-hour ozone standard, which replaced the older 1-hour ozone standard (0.12 Source: EPA.
Green Car Congress
AUGUST 9, 2012
A scatter plot of CO, as a tracer for pollution, versus CO 2 , as a tracer for the amount of combustion, for 2002 and 2010. Even though the CO 2 enhancements over background were comparable in the two years, about 25 ppm in 2002 and 35 ppm in 2010, the ?CO/?CO2 CO2 ratio for this flight track segment decreased from 24.5
Green Car Congress
FEBRUARY 5, 2020
CO 2 and NO x certification test data for heavy-duty diesel engines certified from 2002 through 2019. NO x is a precursor for both ground level ozone and secondary PM 2.5 This has resulted in higher catalyst loading per volume of substrate and led to downsizing of systems from those available in 2010. Chart: MECA.
Green Car Congress
JUNE 3, 2010
The submission of the document, also called the US Climate Action Report 2010, is a requirement under the UN Framework Convention on Climate Change. The United States released previous Climate Action Reports in 1994, 1997, 2002, and 2006. The US submits a National Communication to the UN every 3-5 years. 5,813 Tg CO 2 Eq. 6 Tg CO 2 Eq.
Green Car Congress
FEBRUARY 11, 2014
Mandatory regional criteria pollutant reduction targets will be established in the 2016 State Implementation Plans (SIPs) with expected reductions on the order of 90% below 2010 levels in the South Coast and similar reductions in the San Joaquin Valley by the year 2032. In 2014, ARB will propose enhancements to strengthen the LCFS.
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