Because 2020 was a unique year, it is important to show progress in emissions reductions and areas in need of improvement by comparing pre-COVID emissions levels in 2019 with 2022 …

Mar 31, 2025 · EPA tracks total U.S. emissions by publishing the Inventory of U.S. Greenhouse Gas Emissions and Sinks. This annual report estimates the total national greenhouse gas …

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 …

We make meaningful climate action faster and easier by mobilizing the global tech community to track greenhouse gas (GHG) emissions with unprecedented detail.

Sep 17, 2025 · A new National Academies report reviews evidence gathered by the scientific community since 2009 on greenhouse gas emissions and their effects on U.S. climate, health, …

Jul 13, 2025 · Learn what carbon emissions are, their sources, environmental impact, and measurement methods. Complete 2025 guide with latest data and reduction strategies.

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 …

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 …

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.

Oct 11, 2021 · Energy use and production, followed by agriculture, are the largest sources of emissions worldwide. Carbon dioxide from burning fossil fuels accounts for about three-fourths …