Government officials declared a provincial state of emergency as more than 100 wildfires burned across Alberta on Saturday, with dozens still “out of control.”
The administration urged a court to throw out a challenge brought by tribal and environmental groups, backing a pipeline that would carry Canadian oil across Minnesota and Wisconsin.
Late Monday, police arrested activists and appeared to use a crowd-dispelling sonic device at the Line 3 pipeline in Minnesota, which would carry oil across sensitive waterways and tribal lands.
In rejecting a request from some provinces to strike down national carbon pricing, the court declared that the measure meets an important national need.