Green Car Congress

NOVEMBER 23, 2011

In the months following a pulse of NO x in the upper atmosphere, ozone production is stimulated causing a short-term warming. The corresponding reduction in CH 4 , which is an important ozone precursor, leads to a long-term reduction in ozone. —Stratton et al. Stratton, Philip J. Wolfe, and James I.

MIT

Green Car Congress

OCTOBER 14, 2009

HFCs are powerful greenhouse gases originally developed as substitutes for ozone-depleting chemicals. A binding legal agreement exists that can cut HFCs now—the Montreal Protocol ozone treaty—and many alternatives to HFCs have already been developed and are waiting for the right regulatory incentive from the Montreal Protocol to be deployed.

Climate Change

Green Car Congress

FEBRUARY 22, 2010

Both studies indicate a qualitatively similar response of a reduction in radiative forcing or an increase in total outgoing radiation for an increase in urban albedo and the values indicate an approximate range in potential emitted CO2 offset that may be expected if urban albedos were increased. —Menon et al.

Climate

Green Car Congress

SEPTEMBER 9, 2012

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. 1 from shipping in 2007, corresponding to 3.3% 1 of the total ship emissions in 2007.

Climate

Green Car Congress

APRIL 29, 2013

The figure includes the direct effects and those indirect effects due to the production of tropospheric ozone and stratospheric water vapor.) Methane is more than 20 times as effective as CO 2 at trapping heat in the atmosphere—i.e., a global warming potential of 21. of total CH 4 emissions (103.0 Tg CO 2 eq.) Tg CO 2 Eq., Tg CO 2 eq.

2007

Green Car Congress

APRIL 2, 2009

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. Unger et al. Nadine Unger, Drew T.

Climate

Green Car Congress

SEPTEMBER 25, 2016

These were shown to be ozone-depleting, however, and were targeted for phasing out under the 1987 Montreal Protocol. However, HFC-134a, while having zero ozone-depletion potential, has a very high global warming potential—more than 1,500 times as much warming as an equivalent amount of CO 2.

China

Green Car Congress

SEPTEMBER 2, 2009

Enhanced weathering – this technique, which utilizes naturally occurring reactions of CO2 from the air with rocks and minerals, was identified as a prospective longer-term option. However, there are some serious questions over adverse effects, particularly depletion of stratospheric ozone.

Climate Change

Green Cars News

APRIL 19, 2009

According to the findings, the six key greenhouse gases - carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), hydroflurocarbons (HFCs), perflurocarbons (PFCs) and sulphur hexafluoride (SF6) - threaten the welfare of both current and future generations. The findings will now go to public comment.

EPA

Green Car Congress

MARCH 17, 2010

In a new study published online 10 March in the ACS journal Environmental Science and Technology , however, Stanford University professor Mark Jacobson finds that local CO 2 emissions in isolation may increase local ozone and particulate matter. Although the health impacts of such changes are uncertain, he notes, they are of concern.

Ozone

Tony Karrer Delicious EVdriven

APRIL 20, 2009

Im gonna post a couple excerpts here: Most ozone pollution is caused by motor vehicles, which account for 72% of nitrogen oxides and 52% of reactive hydrocarbons (principal components of smog). (7, Nuclear waste is a problem much harder to solve than CO2, and dams have quite an impact in the environment.

Recharge

Green Car Congress

JULY 29, 2010

1990; Anisimov, 2007] and chemical production of ozone in already-polluted locations [Jacobson, 2008b]. These three gases are all greenhouse gases, and ozone is a surface air pollutant. Warming of the air by any chemical, including soot, enhances natural surface emissions of water vapor [e.g., Dessler et al., Guenther et al.,

Global

Green Car Congress

APRIL 4, 2011

million metric tons of avoided ozone-related yield losses of major food crops; $US0.6-2.4 While reductions in particulate matter tend to produce local health benefits, the scientists found health and agricultural benefits from reduced ozone disperse more widely. trillion avoided health damage and $US1.1-4.3 Shindell et al.’s

Climate

Green Car Congress

MAY 18, 2009

Because eliminating BC emissions almost immediately removes atmospheric BC whereas eliminating CO 2 emissions removes atmospheric CO2 over only many decades, eliminating BC can immediately slow down the loss of Arctic ice, whereas eliminating GHG emissions can slow loss only over a longer period. F, with about 40% due to ozone.

Carbon