OTTAWA, Oct 13 (Reuters) - Canada's Supreme Court on Friday ruled a federal law assessing how major infrastructure projects like coal mines and oil sands plants impact the environment is largely unconstitutional, in a blow to Prime Minister Justin Trudeau's government. "This is a significant setback for the federal government," said David Wright, a law professor at the University of Calgary. "The court has said the federal government can enact environmental assessment legislation but the way they went about it, for most of this law, goes too far." The IAA was drafted by Trudeau's Liberal government in 2019 in a bid to streamline and restore trust in the environmental approval process for major projects. Last year the federal government warned Suncor the environmental impact from expanding Base Mine would be "unacceptable" under the IAA because expected carbon emissions were too high.

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Persons: Justin Trudeau's, Bill C, Richard Wagner, David Wright, Wright, Danielle Smith, Trudeau, Mike Martens, Major, Ismail Shakil, Nia Williams, David Ljunggren, Deborah Kyvrikosaios, Richard Chang Organizations: OTTAWA, Alberta, University of Calgary, IAA, Trudeau's Liberal, Liberals, Industry, Independent Contractors, Association Alberta, Thomson Locations: Canada, Ottawa, Alberta