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U.S. Ambassador to Canada Bruce Heyman, left, and Canadian Prime Minister Justin Trudeau. (Courtesy Uncharted, LLC)

Canada is America’s most trusted ally, but that relationship is at risk. In their new book “The Art of Diplomacy,” a former U.S. ambassador to Canada and his wife explain.

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(Basil Greber / University of Chicago)

A study of rock minerals from northern Canada provides evidence that the Earth might have supported life hundreds of millions of years earlier than thought, according to research led by UChicago scientists.  

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The Canadian prime minister spoke candidly at the University of Chicago on Wednesday, addressing trade tensions between both countries, as well as his vision of gender equality.

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It’s open season for hunters of Canada geese, but the migrating birds have found a novel way to stay out of the firing line: wintering in the city. Rabiah Mayas joins us with that story and more from the world of science.

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There are signs that climate change is having negative effects on maple syrup production. Researchers are now surveying maple trees in the Midwest to look for them.