Nuclear power generates electricity through controlled nuclear fission, splitting uranium atoms to produce heat that creates steam to drive turbines. Nuclear plants provide about 15% of Canada's electricity, primarily in Ontario where several large reactors operate. Nuclear power produces no direct carbon emissions during operation, making it relevant to climate change discussions, but raises concerns about safety, waste disposal, and high construction costs. Provincial governments license and regulate nuclear facilities with federal oversight from the Canadian Nuclear Safety Commission. Municipalities near nuclear plants address emergency planning, community impact management, and sometimes benefit from significant property tax revenues from these facilities.