U.S. President Donald Trump’s claim that Canada is failing to properly manage its forests, and that the cost of wildfire smoke drifting south should be added to tariffs on Canadian goods, has prompted renewed questions about whether more could be done to prevent the massive blazes that have blanketed parts of North America with smoke. But wildfire experts say the answer is far more complicated. “The short answer is there’s nothing that Canada can do about these major wildfires that are causing wildfire smoke to travel thousands of kilometres,” said Anabela Bonada, managing director of climate science at the Intact Centre on Climate Adaptation at the University of Waterloo. …“The No. 1 thing is all of us reducing our emissions, and that goes for the U.S. as well,” Bonada said. “But we are looking at smoky summers ahead, so we need to do everything possible to protect ourselves and people that live in our home.”