All customer facing DEEP services have returned to normal business operations. For detailed information on what this means, visit our “New Normal” website: DEEP New Normal Information

Connecticut Greenhouse Gas Reduction Progress Reports

The state of Connecticut has set several climate-related goals. DEEP tracks progress toward meeting these goals and has published a number of reports on the progress made in reducing statewide greenhouse gas (GHG) emissions over specific years. Below are Connecticut's published reports, starting with the most recent report.


CT GHG Emissions Inventory 2018 and supporting data (released 2021)

CT GHG Emissions Inventory 2017 and supporting data  (released 2020)

CT GHG Emissions Inventory 2016 and supporting data  (released 2018)

CT GHG Emissions Inventory 2013 and supporting data

CT GHG Emissions Inventory 2012  (released 2015)

CT GHG Emissions Inventory 2011  (released 2014)

Taking Action on Climate Change: 2014 Progress Report  (released 2014)

2010 CT GHG Emissions Mitigation Options Overview  (released 2010)

2009 CT GHG Inventory with Appendices  (released 2010)

2007 Progress Report  (released 2007)

2006 Progress Report  (released 2007)

CT GHG Inventory: 1990-2001  (released 2006)

2005 Progress Report  (released 2006)

CT GHG Inventory: 1990-2000  (released 2003)


National Greenhouse Gas Report:
Content Last Updated March 2020