
Air - Kentucky Energy and Environment Cabinet
Submit online air permit applications, compliance and test reports, air release notifications, emissions inventory data, and pay air emissions fees. The Permit Review Branch handles the issuance, …
Air Pollution Emissions Overview - US EPA
Emissions is the term used to describe the gases and particles which are put into the air or emitted by various sources. National Trends The amounts and types of emissions change every year. These …
CO₂ emissions - Our World in Data
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 …
Greenhouse gas emissions - Wikipedia
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 …
Carbon Emissions Definition: Complete Guide To CO2 & Greenhouse …
Jul 13, 2025 · Learn what carbon emissions are, their sources, environmental impact, and measurement methods. Complete 2025 guide with latest data and reduction strategies.
Climate change: atmospheric carbon dioxide - NOAA Climate.gov
May 21, 2025 · In turn, these weather conditions typically lead to less plant growth, which reduces carbon dioxide uptake, as well as increased decomposition of carbon in soil and increased carbon …
Sources of Greenhouse Gas Emissions | US EPA
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 emissions and …
U.S. Emissions - Center for Climate and Energy Solutions
In 2023, the United States emitted nearly 6.2 billion metric tons of greenhouse gases (CO2e). Carbon dioxide accounted for the largest percentage of greenhouse gases (79%), followed by methane …
Understanding emissions: what are they and why do they matter?
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, …
U.S. Energy-Related Carbon Dioxide Emissions, 2024
May 29, 2025 · We publish long-term U.S. emissions projections in our Annual Energy Outlook, which provides annual projections of energy-related CO 2 emissions by fuel source, sector, and end use …