Carbon Dioxide Nitrogen Oxides Wind Power 
Union of Concerned Scientists
APRIL 3, 2025
SMR involves using steam to separate the hydrogen from the carbon in methane (CH 4 ). In addition to producing hydrogen, this process results in emissions of carbon dioxide (CO 2 ) and other heat-trapping gases. Even green hydrogen, however, can have carbon implications, as discussed below. Is green hydrogen carbon-free?
Union of Concerned Scientists
MAY 12, 2022
The shift from fossil fuels in the 100-percent RES scenario reduces the amount of toxic power plant air pollution much more than what we called a “no-new-policy,” or business-as-usual, scenario. Emissions of sulfur dioxide and nitrogen oxides from power plants in alliance states drop 88 percent and 77 percent respectively by 2040.
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Union of Concerned Scientists
MARCH 23, 2023
In 2021 alone, the plants slated for retirement emitted more than 28,000 tonnes of nitrogen oxides (NO x ), 32,000 tonnes of sulfur dioxide (SO 2 ), and 51 million tonnes of carbon dioxide (CO 2 ), according to EIA data. GW of new gas capacity is planned to come online in 2023, outpacing not only the 4.8
Legal Planet
MARCH 6, 2023
Critically, and as we’ll discuss in greater depth shortly, hydrogen combustion (as opposed to its use in fuel cells) also leads to greater emissions of nitrogen oxides (NOx), a toxic group of pollutants regulated under the Clean Air Act. Inefficient end uses for hydrogen can further exacerbate this problem.
PA Environment Daily
AUGUST 3, 2021
By Ad Crable, Chesapeake Bay Journal Pennsylvania is ideally suited to help the nation fight global warming by becoming a leader in the effort to capture and store emissions of carbon dioxide, state officials say. In the battle to slow global warming, carbon dioxide is the chief target. Studies by the U.S.
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