Montgomery County Community Wide Greenhouse Gas Emissions Inventory


The Metropolitan Washington Council of Governments (MWCOG) conducts GHG emission inventories for its member jurisdictions, including Montgomery County. Inventories have been conducted for 2005, 2012, 2015, and 2018. These inventories cover emissions from the Montgomery County community, including the County government.

Greenhouse Gas Trends Chart

Between 2005 and 2018, Montgomery County’s measured community wide GHG emissions decreased by 19 percent. In 2018, residential and commercial energy consumption accounted for 50% of measured emissions and transportation-related emissions accounted for 42%.

Below are tables and graphs, produced by MWCOG on behalf of Montgomery County, that provide data on the 2005, 2012, 2015, and 2018 GHG emissions inventories:

Data necessary for developing GHG emissions inventories becomes available 12-18 months following the end of the calendar year. MWCOG is working on data collection and analysis for the calendar year 2020 GHG emissions inventory, which should be available at the end of 2022/early 2023.