07/08/2015 06:28 EDT | Updated 07/08/2016 05:59 EDT

Climate Summit of the Americas begins in Toronto

Protesters blocked a downtown intersection with yarn amid a demonstration outside a major climate-change conference in downtown Toronto on Wednesday.

The demonstration shut down the intersection of Front and York Streets, outside the Fairmont Royal York, where the two-day Climate Summit of the Americas begins today. Around 50-100 demonstrators marched from Berzy Park to the hotel voice their concerns. 

A major climate-change conference gets underway in Toronto today with hundreds of invitation-only delegates in attendance.

The two-day Climate Summit of the Americas hosted by Ontario aims to bolster the fight against global warming.

The emphasis is on the role provinces, states and other subnational governments can play in reducing greenhouse-gas emissions.

Speakers include former Mexican President Felipe Calderon and former U.S. vice-president Al Gore.

Ontario's Environment Minister Glen Murray says the provinces have had to step up to the plate because Ottawa has been missing in action.