The map contains greenhouse gas (GHG) data reported to Ecology as of April 24, 2017. The reported emissions are preliminary and have not been fully verified by Ecology. This information is subject to change. Except where noted, emissions are reported in metric tons of carbon dioxide equivalent (CO2e). CO2e is a useful measure for comparing the emissions from various greenhouse gases based upon their global warming potentials. Organizations that have emissions spread throughout the state instead of at a single location, such as petroleum product producers/importers and natural gas distributors, are not included in this map. See the complete report to view emissions for all Washington organizations that emit at least 10,000 metric tons of carbon dioxide equivalent. For more information see the complete 2012-2015 Washington Mandatory Greenhouse Gas Report. http://www.ecy.wa.gov/programs/air/permit_register/ghg/ghg.html

This dataset contains data reported to Ecology as of January 24, 2025. This dataset contains both reported and covered emissions. Some of these emissions have been third-party verified, if the emissions reports meet third-party verification requirements. The remaining reported emissions are preliminary and have not been fully verified by Ecology. This information is subject to change. Certain large reporters are required to report their greenhouse gas emissions to Ecology beginning with the 2012 emissions year. Reporters that emit at least 10,000 metric tons of carbon dioxide equivalent (CO2e) of greenhouse gases per year in Washington are required to report in accordance with WAC 173-441. Covered emissions are calculated pursuant to WAC 173-446 for entities that are covered under the Climate Commitment Act’s (CCA) Cap-and-invest Program. Some reporting entities and their previously reported emissions have been removed from the dataset as Ecology screening and third-party verification have shown their previous reports were incorrect, and that their updated reports demonstrate that they are below the reporting threshold, and that they are no longer in the reporting program. This dataset does not include all of Washington’s emissions. See the Washington State Greenhouse Gas Emissions Inventory (Tracking greenhouse gases - Washington State Department of Ecology) for statewide emissions totals. Emissions are in units of metric tons of carbon dioxide equivalents using AR4 global warming potentials as specified in WAC 173-441.

this is the landfill gas flow, methane flow and carbon dioxide flow. This dataset is associated with the following publication: Jain, P., J. Wally, T. Townsend, M. Krause, and T. Tolaymat. Greenhouse gas reporting data improves understanding of regional climate impact on landfill methane production and collection. PLOS ONE. Public Library of Science, San Francisco, CA, USA, 16(2): e0246334, (2021).

this is the landfill gas flow, methane flow and carbon dioxide flow. This dataset is associated with the following publication: Jain, P., J. Wally, T. Townsend, M. Krause, and T. Tolaymat. Greenhouse gas reporting data improves understanding of regional climate impact on landfill methane production and collection. PLOS ONE. Public Library of Science, San Francisco, CA, USA, 16(2): e0246334, (2021).

The monthly Greenhouse Gas (GHG) emission data represents Montgomery County Facilities and Fleet by month beginning July 2019. Facilities: The Facilities GHG data represents physical structures used by County residents and County staff who provide services for County residents. Examples include recreation, libraries, theater and arts, health and human services, liquor retail, courthouses, general services, maintenance facilities, correctional facilities, police stations, fire stations, volunteer fire stations, garages, parking lots, bus shelters and park & ride locations. Facilities use the following fuel sources: grid electricity, natural gas, propane and diesel fuel. Facilities GHG data DOES NOT include Montgomery County Public Schools, Montgomery College and Montgomery Parks Maryland-National Capital Park and Planning Commission (M-NCPPC). Fleet: The Fleet GHG data represents Montgomery County vehicles used by County staff who provide services for County residents. Examples include mass transit buses, snowplows, liquor trucks, light duty trucks, police cars, fire engines and fire service equipment, etc. Each County vehicle use different fuel sources (i.e. diesel, mobil diesel, compressed natural gas, unleaded and E-85). Fleet GHG data DOES NOT include Montgomery County Public School buses, Montgomery College and Montgomery Parks Maryland-National Capital Park and Planning Commission (M-NCPPC) vehicles. GHG Calculation Method: Facilities and Fleet fuel sources are converted into one common unit of energy- 1 Million British thermal units (MMBtu) which are then used with emissions factors and 100-year global warming potential (GWP) to calculate GHG emissions into one common unit of measure- Metric Tons of CO2 Equivalent (MTCO2e). For more information go to: • How to Calculate GHG emissions at https://www.youtube.com/watch?v=zq5wTjvLqnY&t=186s • Emissions & Generation Resource Integrated Database (eGRID) at https://www.epa.gov/energy/emissions-generation-resource-integrated-database-egrid • Emission Factors for GHG Inventories at https://www.epa.gov/sites/production/files/2018-03/documents/emission-factors_mar_2018_0.pdf Update Frequency : Monthly

The EV-GHG Mobile Source Data asset contains measured mobile source GHG emissions summary compliance information on light-duty vehicles, by model, for certification as required by the 1990 Amendments to the Clean Air Act, and as driven by the 2010 Presidential Memorandum Regarding Fuel Efficiency and the 2005 Supreme Court ruling in Massachusetts v. EPA that supported the regulation of CO2 as a pollutant. Manufacturers submit data on an annual basis, or as needed to document vehicle model changes. This asset will be expanded to include medium and heavy duty vehicles in the future.The EPA performs targeted GHG emissions tests on approximately 15% of vehicles submitted for certification. Confirmatory data on vehicles is associated with its corresponding submission data to verify the accuracy of manufacturer submissions beyond standard business rules.Submitted data comes in XML format or as documents, with the majority of submissions sent in XML, and includes descriptive information on the vehicle itself, emissions information, and the manufacturer's testing approach. This data may contain proprietary information (CBI) such as information on estimated sales or other data elements indicated by the submitter as confidential. CBI data is not publically available; however, CBI data can accessed within EPA under the restrictions of the Office of Transportation and Air Quality (OTAQ) CBI policy [RCS Link]. Pollutants data includes CO2, CH4, N2O. Datasets are divided by vehicle/engine model and/or year with corresponding emission, test, and certification data. Data assets are stored in EPA's Verify system.Coverage began in 2011, with summary light duty data available to the public on request. Raw data is only available to select EPA employees.EV-GHG Mobile Source Data submission documents with metadata, certificate and summary decision information is stored in Verify after it has been quality assured. Where summary data appears inaccurate, OTAQ returns the entries for review to their originator.