Advocates say the federal government’s rejection of Ontario’s plan to significantly expand Billy Bishop Toronto City Airport will help protect Toronto’s waterfront. According to the sources, Ottawa’s decision stops a proposed expansion that would have increased operational capacity at the island airport. Supporters of the rejection argue that allowing the expansion would have led to greater environmental impacts in the waterfront area, including higher pollution levels and more intense traffic associated with increased airport activity. They also contend the plan could have undermined waterfront rehabilitation efforts, describing the expansion as a risk to ongoing improvements rather than a net benefit. The reports frame the federal move as a safeguard that prevents potential increases in congestion and environmental damage that advocates associate with larger airport operations. The sources do not provide specific figures on projected increases or detail the precise terms of the federal decision, but they consistently present the outcome as halting the airport expansion and averting associated waterfront impacts.