Union of Concerned Scientists
DECEMBER 10, 2023
Global net anthropogenic greenhouse gas emissions 1990–2019. Global net anthropogenic greenhouse gas emissions include carbon dioxide from fossil fuel combustion and industrial processes, net carbon dioxide from land use, land use change and forestry, methane, nitrous oxide, and fluorinated gases.
Real Climate
JULY 10, 2022
Step 1: There is a natural greenhouse effect. Thus there must be a large amount of IR absorbed by the atmosphere (around 158 W/m 2 ) – a number that would be zero in the absence of any greenhouse substances. Step 2: Trace gases contribute to the natural greenhouse effect. The Earth’s Energy Budget (NASA).
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Real Climate
AUGUST 12, 2021
The cause of our changing climate is the increase in atmospheric greenhouse gas concentrations that we have released into the air. Carbon dioxide (CO 2 ) is the most important greenhouse gas that we have added to the atmosphere, however, some of it has been absorbed by land and oceans.
PA Environment Daily
OCTOBER 14, 2021
In addition to the 22 percent passenger and light duty vehicle requirement, the proposed regulation will also add a greenhouse gas fleet average requirement for Pennsylvania sales. There is no ban on traditional internal combustion engine vehicles.
Science & Climate
APRIL 22, 2021
Transportation is the largest source of greenhouse gas emissions in California. The state funded the two studies through the 2019 Budget Act. Particulate matter harms lungs and hearts, while nitrogen oxide compounds contribute to ozone pollution and other health impacts. by UC Davis News and Media Relations | April 21, 2021.
Clean Energy Law
NOVEMBER 25, 2019
The Basin does not meet the state or federal ambient air quality standards for ozone and particulate matter, and existing regulations have to date proved insufficient to bring the Basin into compliance. The SCAQMD is requesting stakeholder feedback on the discussion draft rule by December 6, 2019. 20, 2019). [6] Looking Forward.
Union of Concerned Scientists
APRIL 27, 2023
But in reality the proposed emission targets were achieved 11 years early in 2019—without the plan ever even taking effect. Research has shown that the country’s remaining coal plants are responsible for 3,800 premature deaths per year, based on 2019 data.
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