Emissions from human activities have increased atmospheric carbon dioxide by about 50% over pre-industrial levels. The growing levels of emissions have varied, but have been consistent among all …

Sep 23, 2025 · Emissions refer to the release of gases, including carbon dioxide (CO2), methane, nitrous oxide, and others, into the atmosphere. These gases profoundly affect the Earth’s climate, …

Dec 23, 2025 · Find environmental data on carbon dioxide emissions from energy and industry, by consuming sector (residential, commercial, industrial, transportation, electric power), and other …

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The National Air Pollutant Emission Trends report summarizes long-term trends in emissions of air pollutants and gives in-depth analysis of emissions for the current year.

Jul 1, 2025 · The national greenhouse gas inventory is developed each year to track trends in U.S. emissions and removals. Find emissions by source, economic sector and greenhouse gas.

This page is just one in our collection of work on CO2 and Greenhouse Gas Emissions where you can explore emissions of other greenhouse gases; where our emissions come from; what trajectories of …

Click here for more information on the Vehicle Emissions Testing program, including how to find your test date, apply for waivers, exemptions, and more.Vehicle Emissions Testing sites areOPEN and …

Nov 12, 2025 · Learn about key greenhouse gases and their sources, as well greenhouse gas emissions at the global, national, facility,and household level.

Want to know what to expect when your vehicle is due for inspection? Click here for a brief video overview of the CT Emissions Program testing process.

Nov 12, 2025 · Learn about key greenhouse gases and their sources, as well greenhouse gas emissions at the global, national, facility,and household level.

Want to know what to expect when your vehicle is due for inspection? Click here for a brief video overview of the CT Emissions Program testing process.

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