Net zero refers to balancing greenhouse gas emissions with removals so no net carbon dioxide is added to the atmosphere. Achieving net zero requires dramatically reducing emissions from energy use, transportation, buildings, and industry while offsetting remaining emissions through carbon capture, tree planting, or other removal methods. Canada has committed to net zero emissions by 2050, with provincial and municipal governments developing supporting strategies. Many municipalities have adopted net zero targets for community emissions or municipal operations. Net zero buildings, for example, generate as much renewable energy as they consume annually. Reaching net zero requires transformative changes in how communities produce and consume energy.