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Conservative supporters watch at Conservative leader Erin O'Toole's election headquarters as its been declared a Liberal government win during the Canadian federal election in Oshawa, Ont., on Monday, September 20, 2021. THE CANADIAN PRESS/Nathan Denette

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Climate and Environment

Biden aims to enlist allies in tackling climate, COVID, more

U.S. President Joe Biden planned to use his first address before the UN General Assembly to reassure other nations of American leadership on the global stage and call on allies to move quickly and cooperatively to address the festering issues of the COVID-19 pandemic, climate change and human rights abuses.

President Joe Biden meets with United Nations Secretary General Antonio Guterres at the Intercontinental Barclay Hotel during the United Nations General Assembly, Monday, Sept. 20, 2021, in New York. (AP Photo/Evan Vucci)

UN to world leaders: To curtail warming, you must do more

For the second time in four days, this time out of UN headquarters in New York, leaders will hear pleas to make deeper cuts of emissions of heat-trapping gases and give poorer countries more money to develop cleaner energy and adapt to the worsening impacts of climate change.

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W5 HIGHLIGHTS

The trans woman taking on the doomsday church

W5 investigates a controversial Christian sect that has divided the small town of Aylmer, Ont. The Church of God Restoration and its fervent pastor have made headlines for their "anti-lockdown" rhetoric, causing turmoil in the once-sleepy town.

Signal detected: Are we alone in the endless abyss of space?

If aliens are sending us signals, are we set up to detect them? Dan Riskin speaks with planetary scientists, radio astronomers, and computer scientists who explain how the search for ET has ramped up in the last few decades. But if they're successful, is there a way to predict what alien creatures might look like?