The Green Municipal Fund (GMF) is a federal fund administered by the Federation of Canadian Municipalities (FCM) that supports municipal environmental and sustainability initiatives. Established with federal endowments now exceeding $1.6 billion, GMF provides grants and loans for projects addressing climate change, energy efficiency, water management, sustainable transportation, and waste reduction. Unlike typical federal funding flowing through provinces, GMF goes directly to municipalities through FCM, providing a unique federal-municipal channel. GMF supports various project stages: plans and studies, pilot projects testing innovative approaches, and capital implementation of proven solutions. Financing includes below-market loans making sustainable projects more viable, plus grants for eligible costs. Thousands of municipal projects across Canada have received GMF support. The fund exemplifies how dedicated environmental financing can catalyze local climate action and serves as a model for mission-driven infrastructure investment.