2021 Carbon Dioxide Greenhouse Ozone 
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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PA Environment Daily
SEPTEMBER 22, 2022
Over the past 15 years, Partners have avoided emissions of over 500 metric tons of ozone-depleting substances and roughly 100 million metric tons of carbon dioxide equivalent. This is roughly equivalent to the greenhouse gas emissions from consuming over 11 billion gallons of gasoline. Click Here for the complete release.
Real Climate
AUGUST 12, 2021
In my opinion the press conference on 9 August 2021 didn’t do justice to the vast effort that went into it. The cause of our changing climate is the increase in atmospheric greenhouse gas concentrations that we have released into the air. This is likely an effect of man-made climate change.
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. Transportation generates 47 percent of nitrogen oxide and 21 percent of carbon dioxide emissions in Pennsylvania.
PA Environment Daily
JANUARY 21, 2022
million in Alternative Fuel Incentive Grants (AFIGs) to 18 cleaner fuel transportation projects statewide that will reduce greenhouse gas emissions and other air pollutants. Transportation generates 47 percent of nitrogen oxide emissions in Pennsylvania, contributing to the formation of ground-level ozone.
Union of Concerned Scientists
APRIL 27, 2023
Gas plants proposed as of the close of 2021 were estimated to result in up to $74 billion in health costs over their lifetime, and that’s just from the burning of gas at the power plant, ignoring all of the polluting upstream impacts from drilling and transporting gas.
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