Alto’s No Significant Climate Changer

In February 2025, the Canadian government announced Alto, a high-speed rail line that will eventually connect Toronto to Québec City. In November, the government said it would introduce new legislation to speed up the project.

One of its proposed benefits is that electrified, high-speed rail will help Canada reduce emissions and meet its climate targets. Alto says the project will help prevent many short-haul flights and remove the carbon emissions equivalent to 100,000 cars from the road each year.

But Alto is unlikely to meaningfully reduce Canada’s GHG emissions. There are indeed benefits from high-speed rail development, including bolstered regional connectivity and economic growth. However, a significant reduction in emissions is not a realistic outcome.