Overview of Greenhouse Gases | Greenhouse Gas (GHG) Emissions

Apr 14, 2021 · For more information, see the Inventory of U.S. Greenhouse Gas Emissions and Sinks sections on Natural Gas Systems and Petroleum Systems. Waste from Homes and Businesses. Methane is generated in landfills as waste decomposes and in the treatment of wastewater. Landfills are the third-largest source of CH 4 emissions in the United States. Methane is also generated from domestic and industrial wastewater treatment and from composting and anerobic digestion.Get price

Sources of Greenhouse Gas Emissions | US EPA

Apr 14, 2021 · In 2019, direct industrial greenhouse gas emissions accounted for 23 percent of total U.S. greenhouse gas emissions, making it the third largest contributor to U.S. greenhouse gas emissions, after the Transportation and Electricity sectors. Including both direct emissions and indirect emissions associated with electricity use, industryshare of total U.S. greenhouse gas emissions in 2019 was 30 percent, making it the largest contributor of greenhouse gases of any sector.Get price

Greenhouse gases - U.S. Energy Information Administration (EIA)

Aug 25, 2020 · Several major greenhouse gases that result from human activity are included in U.S. and international estimates of greenhouse gas emissions: Carbon dioxide (CO2) Methane (CH4) Nitrous oxide (N2O) Industrial gases: Hydrofluorocarbons (HFCs) Perfluorocarbons (PFCs) Sulfur hexafluoride (Sulfr hexafluoride) Nitrogen trifluoride (NF3)Get price

EIA - Greenhouse Gas Emissions Overview

Total EmissionsEnergy-Related Carbon Dioxide Emissions by Fuel and End UseDecomposition of U.S. Greenhouse Gas ChangesGreenhouse Gas Emissions in The U.S. EconomyU.S. Emissions in A Global PerspectiveRecent U.S. and International Developments in Global Climate ChangeSpecial Topic: Energy and Carbon Initiatives at The U.S. Department of EnergyUnits For Measuring Greenhouse GasesMethodology Updates For This ReportTotal U.S. anthropogenic (human-caused) greenhouse gas emissions in 2009 were 5.8 percent below the 2008 total (Table 1). The decline in total emissions—from 6,983 million metric tons carbon dioxide equivalent (MMTCO2e) in 2008 to 6,576 MMTCO2e in 2009—was the largest since emissions have been tracked over the 1990-2009 time frame. It was largely the result of a 419-MMTCO2e drop in carbon dioxide (CO2) emissions (7.1 percent). There was a small increase of 7 MMTCO2e (0.9 percent) in methane (CH4) emissions, and an increase of 8 MMTCO2e (4.9 percent), based on partial data, in emissions of man-made gases with high global warming potentials (high-GWP gases). (Draft estimates for emissions of HFC and PFC substitutes for ozone-depleting substances in 2009 are included; 2008 data are used for emissions of other high-GWP gases.) Emissions of nitrous oxide (N2O), on the other hand, fell by 4 MMTCO2e (1.7 percent). The decrease in U.S. CO2emissions in 2009 resulted primarily from three fact...Get price

Greenhouse gas emissions by the United States - Wikipedia

The United States produced 6.7 billion metric tons of carbon dioxide equivalent greenhouse gas emissions in 2018, the second largest in the world after China and among the worst countries by greenhouse gas emissions per person. Because coal-fired power stations are gradually shutting down, in the 2010s emissions from electricity generation fell to second place behind transportation, which is now the largest single source.Get price

U.S. Greenhouse Gas (GHG) Emissions 1970-2021 | MacroTrends

U.S. Greenhouse Gas (GHG) Emissions 1970-2021. Total greenhouse gas emissions in kt of CO2 equivalent are composed of CO2 totals excluding short-cycle biomass burning (such as agricultural waste burning and Savannah burning) but including other biomass burning (such as forest fires, post-burn decay, peat fires and decay of drained peatlands), all anthropogenic CH4 sources, N2O sources and F-gases (HFCs, PFCs and Sulfr hexafluoride).Get price

Ecology of Greenhouse Gas Emissions from Coastal Wetlands

We also measure greenhouse gas fluxes from a range of wetland types differing in natural and managed hydrology, salinity, latitude, and geography in order to understand how greenhouse gas emissions are regulated in each environment (e.g., water level, soil temperature, river discharge, etc.) and to determine mass fluxes of greenhouse gases on aGet price

Greenhouse Gases Explained | Office of Environmental and

Jan 23, 2020 · Every gas with molecules composed of three or more atoms is considered a greenhouse gas. Some of the best-known examples are water vapor (H 2 O), carbon dioxide (CO 2) and methane (CH 4), but there are many others. Gases like nitrous oxide (N 2 O), chlorofluorocarbon-12 and hydrofluorocarbon-23 are also common culprits. Some of these gases are produced by both natural and human-driven activities, but others, like the fluorinated gases, are only produced because of human industrial activity.Get price

Decomposing Plastic Revealed as Hidden Source of Greenhouse

A team of researchers at the University of Hawaii studied the decomposition of various kinds of plastic and determined that methane and ethylene, two greenhouse gas emissions, are released in the process. Methane warms the planet at up to 86 times the rate of carbon, while ethylene is another leading emission.Get price

The Top Ten Greenhouse Gases - PopSci

Mar 17, 2009 · The new kid on the block, MIT scientists identified this chemical as a greenhouse gas on March 11th, 2009. Used as a fumigant, Dow Chemicals produces sulfuryl fluoride to kill termites.Get price

Decomposing leaves are a surprising source of greenhouse

Jun 05, 2017 · It’s difficult to study and label an entire field as a source of greenhouse gas emissions when the source is grams of soil harboring decomposing leaves. Changing the view from binoculars to microscopes will help improve N2O emission predictions, which traditionally are about 50 percent accurate, at best.Get price

Greenhouse Gas

Greenhouse Gas Emissions ReportingReporting Greenhouse Gases to The U.S. Environmental Protection AgencyGreenhouse Gas OverviewGreenhouse Gas PermittingThe West Virginia Division of Air Quality (DAQ) does not currently require sources to report their GHG emissions directly to DAQ. The DAQ will obtain the federal GHG data being collected rather than requiring sources to report GHG data to the State as well as to EPA. Sources are still encouraged however, to voluntarily report GHGs when completing their annual emissions inventory.Get price

The Greenhouse Effect and our Planet | National Geographic

May 18, 2018 · Greenhouse gas emissions affect more than just temperature. Another effect involves changes in precipitation, such as rain and snow. Over the course of the 20th century, precipitation increased in eastern parts of North and South America, northern Europe, and northern and central Asia.Get price

Energy from Waste Can Help Curb Greenhouse Gas Emissions

Apr 17, 2013 · The Kearny site is among 21 landfills in New Jersey that convert methane gas produced by decomposing trash into electricity. Endnotes and citations are available in the PDF and Scribd versions. The...Get price

Greenhouse Gases Equivalencies Calculator - Calculations and

Jan 24, 2017 · Based on data developed by the USDA Forest Service for the Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990–2013, the carbon stock density of U.S. forests in 2013 was 149 metric tons of carbon per hectare (or 60 metric tons of carbon per acre) (EPA 2015). This estimate is composed of the five carbon pools: aboveground biomass (55Get price

Atmospheric greenhouse gas concentrations | OEHHA

Feb 11, 2019 · Since measurements first started at Mauna Loa, Hawaii, atmospheric levels of CO 2 have risen from 315 ppm in 1958 to over 400 ppm today. Concentrations are expected to stay above 400 ppm for many generations, because CO 2 can remain in the atmosphere for hundreds of years. CO 2 is a long-lived greenhouse gas responsible for roughly 65 percent of the total warming effect caused by greenhouse gases globally.Get price

Greenhouse Gases | EGEE 102: Energy Conservation and

Check This Out!How Has CO2 Concentration Changed?Try This!Hold your mouse over the pie chart to see what percentage each gas accounts for in the total greenhouse emissions in the United States and look at the table below for information about the sources of the gasses. The following list shows the greenhouse gasses and the source of emission: 1. Carbon dioxide (CO2): Energy related CO2: 82% and Other CO2: 2%. Produced by combustion of solid waste, fossil fuels, and wood and wood products. 2. Methane (CH4): 9%. Source is the production and transport of coal, natural gas, and oil. Methane emissions also result from the decomposition of organic wastes in municipal solid waste landfills, and the raising of livestock. 3. Nitrous Oxide (N2O): 5%. Produced by agricultural and industrial activities, as well as during combustion of solid waste and fossil fuels. 4. Other gases (CFC-12, HCFC-22, Perfluoromethane [CF4], and Sulfur Hexaflouride [sf 6]): 2%. Produced by industrial processes. As you can see, energy related CO2 and CH4accounts for 90 perce...Get price

Greenhouse Gas (GHG) Reduction

Greenhouse Gas (GHG) Reduction. As outlined in Executive Order (EO) 13693, Planning for Federal Sustainability in the Next Decade, the goal of reducing greenhouse gas emissions is to minimize the contributions to the greenhouse effect which contributes to global warming and subsequent adverse environmental and human health.Get price

What are Greenhouse Gases? | US Department of Transportation

Jul 21, 2016 · Naturally occurring greenhouse gases include water vapor, carbon dioxide, methane, nitrous oxide, and ozone. Certain human activities, however, add to the levels of most of these naturally occurring gases: Carbon dioxide is released to the atmosphere when solid waste, fossil fuels (oil, natural gas, and coal), and wood and wood products are burned. Methane is emitted during the production and transport of coal, natural gas, and oil.Get price

Greenhouse Gases | Encyclopedia.com

IntroductionHistorical Background and Scientific FoundationsBibliographyCertain gases in Earthatmosphere—particularly carbon dioxide (CO2), methane (CH4), and water vapor—trap energy from solar radiation and thus, keep Earth warmer than it would be otherwise. These gases are termed greenhouse gases and the warming they create is termed the greenhouse effect or greenhouse warming. About 65% of greenhouse warming is caused by CO2, the most abundant greenhouse gas. A certain amount of greenhouse warming occurs naturally; without it, Earth would be too cold to sustain most life. However, the intensity of the greenhouse effect is being increased by human activities that add greenhouse gases to the atmosphere. For example, burning fossil fuels (coal, petroleum, and natural gas) was adding over 6 billion metric tons of carbon dioxide to the atmosphere every year as of 2006, with world usage of such fuels increasing rapidly. About half of the CO2 released each year remains in the atmosphere and intensifies Earthnatural greenhouse effect; the rest is absor...Get price

Greenhouse gas emissions and removals - US Forest Service

been reporting an economy-wide Inventoryof greenhouse gas (GHG) emissionsand removals since the mid-1990s (US EPA 2020). Forest land, harvested wood products (HWPs), and urban trees within the land sector collectively represent the largest net carbon (C) sink in the United States, offsetting more than 11 percent of total GHG emissions annuallyGet price

Greenhouse gas emissions - Our World in Data

How do greenhouse gas emissions vary across the world? This interactive chart shows annual greenhouse gas emissions – the amount a given country produces each year – across the world. Again, this is measured in tonnes of carbon dioxide equivalents. As is the case with CO 2 emissions, China is the world’s largest emitter of greenhouseGet price

Greenhouse Gas Overview | Envirofacts | US EPA

Jan 19, 2017 · In response to the FY2008 Consolidated Appropriations Act (H.R. 2764; Public Law 110--161), EPA launched the Greenhouse Gas Reporting Program (GHGRP).The program requires annual reporting of greenhouse gas (GHG) data and other relevant information from large direct emissions sources and suppliers of certain fossil fuels and industrial gases in the United States.Get price

Greenhouse gases, water vapor and you | MIT Global Change

“Water vapor is the most important greenhouse gas and natural levels of [carbon dioxide, methane and nitrous oxide] are also crucial to creating a habitable planet,” writes John Reilly, professor at MIT and co-director of the Joint Program on the Science and Policy of Global Change, Center for Environmental Policy Research, in an email.Get price

Greenhouse gas - Methane | Britannica

As with CO 2, human activity is increasing the CH 4 concentration faster than it can be offset by natural sinks. Anthropogenic sources currently account for approximately 70 percent of total annual emissions, leading to substantial increases in concentration over time. The major anthropogenic sources of atmospheric CH 4 are rice cultivation, livestock farming, the burning of coal and natural gas, the combustion of biomass, and the decomposition of organic matter in landfills.Get price

greenhouse gas | Definition, Emissions, Greenhouse Effect

Greenhouse gas, any gas capable of absorbing infrared radiation (net heat energy) emitted from Earth’s surface and reradiating it back to Earth’s surface, thus contributing to the phenomenon known as the greenhouse effect. Carbon dioxide, methane, and water vapor are the most important greenhouse gases.Get price

Sector by sector: where do global greenhouse gas emissions

Sep 18, 2020 · In this post I present only one chart, but it is an important one – it shows the breakdown of global greenhouse gas emissions in 2016. 2 This is the latest breakdown of global emissions by sector, published by Climate Watch and the World Resources Institute. 3, 4Get price


Decomposition Temperature: N/A Viscosity: N/D % Volatile (w/w): 50% Section 10: Stability and Reactivity Chemical Stability: This is a stable material Hazardous Decomposition Products: Upon decomposition, this product may yield sulfur dioxide and oxides of sulfur Conditions to avoid: None known Materials to avoid: None knownGet price

Greenhouse Gas Inventory Data Explorer | US EPA

Apr 06, 2021 · Contact Us Greenhouse Gas Inventory Data Explorer The Data Explorer is an interactive tool that provides access to data from the EPAannual Inventory of the U.S. Greenhouse Gas Emissions and Sinks.Get price