Low Carbon Cities Canada (LC3) is a national initiative supporting Canadian municipalities in reducing greenhouse gas emissions and transitioning to low-carbon economies. The program connects city governments with resources, expertise, and funding to accelerate climate action at the local level. LC3 works through regional centres that provide technical assistance, help develop climate action plans, and connect municipalities with financing for emission reduction projects. Cities play a crucial role in addressing climate change since buildings, transportation, and waste management, largely under municipal influence, account for significant emissions. LC3 supports collaborative approaches to climate challenges across Canadian communities.