Toronto Star: On the international stage, the Trudeau government has displayed admirable leadership on climate change. Still in its first year, it played a key role in negotiation of the landmark Paris Agreement and helped to broker a historic North American climate treaty. Unlike its predecessor, it seems to take seriously the existential threat posed by climate change, the heat waves, droughts and floods, melting ice caps and freakish weather that promise to wreak perilous havoc if the Earths warming is allowed...