Atmosphere Greenhouse Nitrogen Oxides 
Union of Concerned Scientists
MAY 21, 2025
are formed indirectly in the atmosphere from other toxic pollutants also emitted from tailpipes. Medium and large trucks, which make up just 1 in 10 vehicles on our roads, contribute disproportionately to 58 percent of the ozone-forming nitrogen oxides and 52 percent of PM 2.5 Secondary PM 2.5
Union of Concerned Scientists
AUGUST 21, 2024
Most prominently, because the approach is changing from rewarding specific technologies to rewarding anything that meets the greenhouse gas (GHG) emissions threshold of “clean”—hence the “tech-neutral” label—exactly how the government goes about determining whether or not something is actually eligible will be enormously important.
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Union of Concerned Scientists
SEPTEMBER 11, 2024
However the long term drop in per person gasoline use is likely due to fuel economy and greenhouse gas standards that have made gasoline vehicles more efficient over the prior decades. Eliminating gasoline combustion also means getting rid of harmful pollutant emissions like nitrogen oxides and reactive organic gases.
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.
Enviromental Defense
OCTOBER 12, 2023
Background Information: Though hydrogen itself isn’t technically a greenhouse gas, scientists have found that hydrogen actually does contribute to temperature rise through some complex chemical reactions—and is actually 33 times more powerful than carbon dioxide.
Edouard Stenger
NOVEMBER 29, 2022
noted ” Diesel generators produce carbon dioxide (CO2), nitrogen oxide (NOx), and particulate matter. These generators release this into the atmosphere and substantially reduce air quality in the nearby regions. This is very expensive. Additionally, as EnergyEducation.ca Every litre of fuel has 0.73 kg of pure carbon, 2.6
PA Environment Daily
AUGUST 3, 2021
Environmental Protection Agency show that CO2 accounts for the vast majority of heat-trapping greenhouse gases emitted by the U.S. Concentrations of CO2 in the atmosphere have risen approximately 47 percent since 1750, mostly from the burning of fossil fuels for energy. from 1990–2019.
Expert insights. Personalized for you.
Let's personalize your content