2010 2020 Climate Change Ozone 
Green Car Congress
APRIL 10, 2023
New analysis has found increasing emissions of several ozone-depleting chemicals despite their production being banned for most uses under the Montreal Protocol—and a loophole in the rules is likely responsible. According to the researchers, emissions from these CFCs currently do not significantly threaten ozone recovery.
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. Ozone is harmful to humans at ground-level, causing pulmonary and heart disease. —Guy Brasseur.
Green Car Congress
JUNE 3, 2010
From 2005 through 2020, total US greenhouse gas (GHG) emissions are projected to rise by 4% under a “with measures” scenario (but without a cap-and-trade program and other complementary policies), from 7,109 Tg CO 2 Eq. from 2005 to 2020. The United States released previous Climate Action Reports in 1994, 1997, 2002, and 2006.
Green Car Congress
JANUARY 23, 2020
That the reduction has not materialized—and that global emissions have instead risen—is a puzzle, and may have implications for the Montreal Protocol, the international treaty that was designed to protect the stratospheric ozone layer. This is not the first time that HFC-23 reduction measures attracted controversy. Resources.
Green Car Congress
NOVEMBER 28, 2009
The studies use case studies to demonstrate the co-benefits of tackling climate change in four sectors: electricity generation, household energy use, transportation, and food and agriculture. Climate change threatens us all, but its impact will likely be greatest on the poorest communities in every country.
Green Car Congress
FEBRUARY 19, 2010
Radiative forcing due to perpetual constant year 2000 emissions grouped by sector for 2020 (left) and 2100 (right) showing the contribution from each species. In their analysis, motor vehicles emerged as the greatest net contributor to atmospheric warming now and in the near term, with a total radiative forcing of 199 mWm -2 in 2020.
Green Car Congress
FEBRUARY 11, 2014
The 2013 Scoping Plan update lays out the remaining steps to the 2020 limits set by AB 32. Many of the strategies employed to reduce GHG emissions will also work to meet the national ambient air quality standard for ozone in 2032. Additional strategies are needed over the next five years to define the paths for longer-term change.
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