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Costco has joined a lawsuit by companies suing the U.S. government to ensure it will receive refunds if the Supreme Court rejects President Donald Trump’s authority to impose tariffs.

Lundin Mining Corp. v. Markowich : This case was about the legal test an investor must meet to get permission to sue a company for not immediately disclosing events the investor considered to be changes. The decision upholds "the integrity of our capital markets, protecting against what could have been a significant decline in the quality of disclosure available to investors.”

Prime Minister Mark Carney and Alberta premier Danielle Smith signed a memorandum of understanding on an interprovincial pipeline, with Liberal cabinet minister Steven Guilbeault resigning in protest.

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Since 1999, the United Nations has recognized November 25 as the International Day for the Elimination of Violence Against Women.

Academic experts available to comment on the following: Ultra-processed Food & Health

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Flu cases are rising in Canada with medical experts bracing for a difficult influenza season. The global spread of the H3N2 strain in addition to the H1N1 strain – may affect this year’s flu vaccine’s efficacy.

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The University of Ottawa has the following experts at COP30 in Bélem, Brazil, which media may directly contact: