The nomination of Pruitt, 48, to lead the EPA is being fiercely opposed by environmental groups that point to fundraising ties with corporations he has sued to protect.
The U.S. film star and Oscar winner said she made the visit to learn about the impact of oilsands development on First Nations and to support their opposition to pipelines.
A shareholder advisory firm reviewed 52 of Canada's big energy companies and found that none had board members who listed climate change as an area of knowledge.
In Alberta, the new tax is part of a larger plan to help it reduce emissions while diversifying its oil-rich economy. The tax officially began Sunday, adding pennies to the price of gasoline.
Columnist Sandy Garossino, Tsleil-Waututh First Nation Councillor Charlene Aleck, Sven Biggs, of Stand, and Kinder Morgan's Lizette Parsons Bell each weigh in on the controversial project.
Our climate targets have us heading for a three degree increase - a level at which scientists agree that large parts of the earth will become inhospitable to human civilization.
I have many questions about the Trudeau government's pipeline decisions, writes Charlene Aleck. The questions will haunt us long into the future if this project is allowed to proceed.