Climate Change Comparison Ozone 
Green Car Congress
MAY 12, 2020
Levels of two major air pollutants have been reduced significantly since lockdowns began in response to the COVID-19 pandemic, but a secondary pollutant—ground-level ozone—has increased in China, according to new research. For comparison, columns over the same time periods are shown for 2019. —Guy Brasseur.
Green Car Congress
NOVEMBER 23, 2011
Aviation climate change impacts pathway. 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. Credit: ACS, Stratton et al.
Green Car Congress
MAY 17, 2020
The system will graph lifecycle impact for a range of specified powertrains, for a large number of impact categories: Climate change [kg CO 2 -eq.]. Deterioration of the ozone layer [kg CFC-11-eq.]. The top sample above shows climate change impact; the subsequent chart shows human toxicity.
Green Car Congress
AUGUST 28, 2009
Comparison of annual N 2 O ODP-weighted emissions from the 1990s with emissions of other ODS in 1987 and in 2008. Currently, anthropogenic N 2 O emissions represent the largest contribution to ozone depletion. Today, nitrous oxide emissions from human activities are more than twice as high as the next leading ozone-depleting gas.
Green Car Congress
OCTOBER 30, 2009
Despite their limitations, GWPs are widely used for comparison among long-lived gases, forming the basis for worldwide political agreements on climate and carbon trading. Methane’s GWP may also change with time as air quality regulations alter the background state of tropospheric chemistry. Shindell et al. —Drew Shindell.
Green Car Congress
MARCH 16, 2012
eutrophication; ET = ecological toxicity; FEC = fossil energy consumption; WU = water use; LO = land occupation; “The rest” includes acidification; smog formation; ozone layer depletion; and human health effects. This study highlighted the environmental impacts of corn ethanol in comparison with gasoline. GW = global warming; Eut.
Green Car Congress
SEPTEMBER 1, 2012
Although viewed as a potential target in the global effort to reduce climate change, atmospheric black carbon particles absorb significantly less sunlight than scientists have predicted, according to a new study by an international team of researchers, published in the journal Science. Credit: Cappa et al. Click to enlarge.
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