Trudeau warns of 'climate reckoning' in UN address, urges shake-up of global establishment

"Right now, our world is facing a climate reckoning," Trudeau said. "We are at this point because of our collective inability, over the past decades, to make the tough decisions and sacrifices needed to fight climate change and save future generations."

The world needs a new way of thinking in order to address the challenges of climate change, inequality and health care.

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