That legislation is Bill C-59, which would require companies to provide evidence to back up their environmental claims. It is currently awaiting royal assent.

"They're censoring conservative speech!"

You know, I'm old enough to remember when "conservative speech" didn't mean "lies".

As of Thursday, it was also what led the Pathways Alliance, a consortium of Canada's largest oilsands companies, to remove all its content from its website, social media and other public communications.

Their entire website was unsupported by evidence?

It sounds to me like the law is doing exactly what it was intended to do.