The Canadian federal government has committed to powering all of its buildings and operations using renewable energy sources by 2025. The goal is in support of a broader target to reduce the government’s greenhouse-gas (GHG) emissions by 40% by 2030. Catherine McKenna, the federal minister of environment and climate change, announced the new commitments while speaking at the Canadian Wind Energy Association conference in Calgary on Wednesday. In a press release from the government, McKenna…