article thumbnail

Latest GHG Inventory shows California remains below 2020 emissions target; much steeper rate of GHG reductions required

Green Car Congress

California’s latest greenhouse gas data shows that while the state continues to stay below its 2020 target for emissions, there is much more work to do to achieve carbon neutrality by 2045. California statewide GHG emissions dropped below the 2020 GHG Limit in 2016 and have remained below the 2020 GHG Limit since then.

2020 221
article thumbnail

Study: 2/3 of aviation climate impact due to emissions other than CO2

Green Car Congress

Net warming from NO x emissions is a sum over warming (short-term ozone increase) and cooling (decreases in methane and stratospheric water vapor, and a long-term decrease in ozone) terms. Both radiative forcing (RF) and effective radiative forcing (ERF) terms and their sums are calculated for the years 2000–2018. De León, L.L.

Climate 448
article thumbnail

PSI team develops web tool for consumers to compare environmental impact of passenger cars in detail

Green Car Congress

Deterioration of the ozone layer [kg CFC-11-eq.]. The user also selects the country where the vehicles are to be used—because this differentiates the electricity mix for electric cars—as well as the year, between 2000 and 2050, when the cars will be registered. 2020) Submitted to Renewable and Sustainable Energy Reviews.

Mariner 435
article thumbnail

California 2017 GHG inventory shows 1.2% total drop from 2016; transportation sector emissions up 1%

Green Car Congress

In 2017, emissions from GHG emitting activities statewide were 424 million metric tons of CO 2 equivalent (MMTCO 2 e), 5 MMTCO 2 e lower than 2016 levels and 7 MMTCO 2 e below the 2020 GHG Limit of 431 MMTCO 2 e. Changes in emissions by Scoping Plan sector between 2000 and 2017. Compared to 2016, California’s GDP grew 3.6%

2017 230
article thumbnail

Researchers suggest that air quality tests need simplifying to help reduce dangerous emissions

Green Car Congress

They focused their comparison on techniques used in a three-dimensional model commonly used by environmental agencies to simulate ozone, particulate matter, and atmospheric acid concentrations, and develop effective emission reduction strategies. Stockwell, Emily Saunders, Wendy S. Goliff & Rosa M.

Emissions 170
article thumbnail

Study: Hydrofluorocarbons Will Contribute Significantly to Global Warming by 2050

Green Car Congress

Global ozone-depleting substances (ODSs) and HFC emissions (A), global CO 2 and HFC emissions (B), and ODS, HFC, and CO 2 global RF (C) for the period 2000–2050. These HFCs, gases used in refrigerators and air conditioners, are substitutes for ozone-depleting gases, but they are also strong greenhouse gases. Velders et al.

Global 150
article thumbnail

Study Finds On-Road Transportation Sector the Greatest Net Contributor to Atmospheric Warming Now and in Mid-Term; Power Sector Takes the Lead by 2050

Green Car Congress

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.