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The Editors

Canada Sets the Trend on Climate

Prime Minister Justin Trudeau will put a minimum price on carbon. Other countries should follow.
Reason to smile.

Reason to smile.

Photographer: Nicholas Kamm/AFP/Getty Images

Canada is an unlikely model for climate-change policy. As things stand, it’s a long way from keeping the promise it made as part of the Paris agreement to sharply cut carbon emissions. But its government is now proposing to make this right -- and with an approach that deserves to be widely copied.

QuickTake The Cost of Carbon