Washington's greenhouse gas inventory

We publish an inventory of Washington's greenhouse gases every two years, measuring the state's progress in reducing greenhouse gases compared to a 1990 baseline. This inventory helps us design policies to reduce greenhouse gas emissions and track progress toward meeting the state’s emission reduction limits.

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Learn about the Climate Commitment Act

Greenhouse gas emissions for 2016-2018

Ecology data shows that Washington's greenhouse gas emissions increased the past three years:

2016 total emissions — 97.9 million metric tons
2017 total emissions — 98.3 million metric tons
2018 total emissions — 99.6 million metric tons

Greenhouse gas emissions inventories

Washington State Greenhouse Gas Emissions Inventory: 1990-2018
Washington State Greenhouse Gas Emissions Inventory: 1990-2015
Washington State Greenhouse Gas Emissions Inventory: 2012 - 2013
Washington State Greenhouse Gas Emissions Inventory: 2010 - 2011
Washington State Greenhouse Gas Emissions Inventory: 2009 - 2010
Washington State Greenhouse Gas Emissions Inventory: 2007 - 2008
Washington State Greenhouse Gas Emissions Inventory: 1990 baseline

Contact information

Susan Woodward
Communications Manager
susan.woodward@ecy.wa.gov
360-688-8070

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Washington's greenhouse gas inventory

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Greenhouse gas emissions for 2016-2018

Greenhouse gas emissions inventories

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Contact information