AQ Programs

 
Oregon’s sector-based inventory measures human-caused greenhouse gas emissions produced within Oregon by economic sector. It also includes the emissions associated with the electricity used in Oregon regardless of where that electricity is generated. The Oregon Global Warming Commission utilizes the sector-based inventory to track progress toward Oregon’s emission reduction goals.
 
The sector-based inventory is compiled by integrating data from DEQ’s Greenhouse Gas Reporting Program and modeled emissions estimates from EPA’s State Inventory Tool. Approximately 80 percent of the total emissions in this inventory since 2010 have been derived from state level data reported directly to DEQ.
 
DEQ also compiles a consumption-based inventory that measures greenhouse gas emissions produced around the world due to the state’s consumption of goods and services. Oregon contributes to climate change in many different ways, and the use of these two inventories provides a more complete understanding of that contribution.
 
Visit the Oregon Greenhouse Gas Emissions page to learn more about both inventories and read the latest comprehensive report on Oregon’s greenhouse gas emissions.

Greenhouse gas emissions from 1990-2016

To view data, click on the image

Emissions from transportation and electricity generation and continue to be Oregon’s largest sources of greenhouse gas emissions.

Sector based data

It is good practice to update emission estimations when improved methods or data become available. For this reason, published data sets may vary from year to year.
 
Preliminary emissions data
To provide the most current emissions estimates possible, DEQ develops preliminary greenhouse gas estimates based on reported data that is often available up to a year earlier than data from EPA’s State Inventory Tool. When an updated version of the State Inventory Tool becomes available, DEQ updates and finalizes preliminary emission estimates. DEQ is committed to updating the inventory on an annual basis.
Oregon’s greenhouse gas reporting program
Oregon’s greenhouse gas reporting program collects emissions data from certain facilities, fuel importers, electricity and natural gas suppliers, and landfills. Data collected in the program improves the accuracy of our inventory and our understanding of Oregon’s emissions. Mandatory reported data is made available to the public on our Greenhouse Gas Emissions Reported page
For additional information on the sector-based inventory or mandatory reported data, please contact the greenhouse gas reporting program at GHGReport@deq.state.or.us ​