Research & Data

Use this portal to filter and search for all of our scientific information.

Ecology provides the high-quality science that is the foundation of Washington state environmental policy. Our monitoring, assessment, and modeling services provide a data-rich understanding of our state’s land, air, and water. We provide access to that data through reports, databases, maps and user-friendly online tools.

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Transportation Fuel Supplier Greenhouse Gas Emission Calculator

This tool helps transportation fuel suppliers calculate their greenhouse gas emissions.

https://ecology.wa.gov/transportationfuelsuppliertool

Rulemaking Announcement (WAC 173-407) 02/07/17

This is a rulemaking Announcement (CR-101) for WAC 173-407 Carbon Dioxide Mitigation Program, Greenhouse Gases Emissions Performance Standard and Sequestration Plans and Programs for Thermal Electric Generating Facilities

https://ecology.wa.gov/rulemaking-announcement-wac-173-407-20170207

SEPA Determination of Nonsignificance and Checklist (WAC 173-407) 10/04/17

This is SEPA DNS and Checklist for WAC 173-407 Carbon Dioxide Mitigation Program, Greenhouse Gases Emissions Performance Standard and Sequestration Plans and Programs for Thermal Electric Generating Facilities

https://ecology.wa.gov/sepa-determination-of-nonsignificance-and-checklis

WA-GREET electric power final (WAC 173-424) 06-30-22

This is the June 30, 2022 final supporting documentation for electric power pathway in WA-GREET, Washington's version of the Greenhouse Gases, Regulated Emissions, and Energy Use in Technologies Model.

https://ecology.wa.gov/wa-greet-electric-power-final-wac-173-424-06-30-22

WA-GREET electric (WAC 173-424) 06-30-22

This is the June 30, 2022 supporting documentation for electric power pathway in WA-GREET, Washington's version of the Greenhouse Gases, Regulated Emissions, and Energy Use in Technologies Model.

https://ecology.wa.gov/wa-greet-electric-wac-173-424-06-30-22

WA-GREET supplemental (WAC 173-424) 11-28-22

This is the final supporting documentation for WA-GREET, Washington's version of the Greenhouse Gases, Regulated Emissions, and Energy Use in Technologies Model.

https://ecology.wa.gov/wa-greet-supplemental-wac-173-424-11-28-22

WA-GREET supplemental (WAC 173-424) 07-15-22

This is the July 15, 2022 supporting documentation for WA-GREET, Washington's version of the Greenhouse Gases, Regulated Emissions, and Energy Use in Technologies Model.

https://ecology.wa.gov/wa-greet-supplemental-wac-173-424-07-15-22

WA-GREET supplemental (WAC 173-424) 04/04/22

This is the April 4, 2022 supporting documentation for WA-GREET, Washington's version of the Greenhouse Gases, Regulated Emissions, and Energy Use in Technologies Model.

https://ecology.wa.gov/wa-greet-supplemental-wac-173-424-04-04-22

WA-GREET supplemental (WAC 173-424) 03/08/22

This is supporting documentation for WA-GREET, Washington's version of the Greenhouse Gases, Regulated Emissions, and Energy Use in Technologies Model.

https://ecology.wa.gov/wa-greet-supplemental-wac-173-424-03-08-22