Climate Change Mitigation

Cities are at the forefront of global climate action. Mayors and citizens are often the first to experience the effects of climate change, and cities are uniquely positioned to take action by reducing greenhouse gas emissions at the local level.

The Cities Initiative is partnering with the Compact of Mayors, an organization working to standardize greenhouse gas monitoring and reduction efforts at the municipal level around the world, to assist Great Lakes and St. Lawrence communities in mitigating climate change and reducing greenhouse gases at the local level.

As of December 2015, 19 member municipalities have community-wide greenhouse gas reduction targets; 31 members have some greenhouse gas reduction targets; and 73 members have taken some action to mitigate climate change.

The Cities Initiative membership is also committed to collectively reducing 30 million tonnes of equivalent CO2 by 2020, the equivalent of taking 6 million cars off the road for a year.

If your municipality is interested in joining the Compact of Mayors or would like more information, please contact David Ullrich at

Reports: Mitigating Climate Change in Great Lakes – St. Lawrence Cities

1-pager GHGs in cities

One Page: Greenhouse Gas Emission Reduction Targets in Great Lakes – St. Lawrence Cities

GHGs in cities_full report

Full Report: Greenhouse Gas Emission Reduction Targets in Great Lakes – St. Lawrence Cities

Member Cities Committed to the Compact of Mayors 

Updated April 2016

  • Ontario: Toronto, Hamilton, Windsor, Thunder Bay, Chatham-Kent, Durham Region, St. Catharines
  • Quebec: Montreal, Sorel-Tracy, Salaberry-de-Valleyfield
  • Wisconsin: Ashland, Milwaukee, Racine
  • Illinois: Evanston, Chicago
  • Michigan: Grand Rapids, South Haven, Muskegon
  • New York: Rochester, Niagara Falls

Visit to COP21 in Paris, December 2015