… pollution, including the United States.
Canada was the most polluted country … more than 45 million acres. Canadian wildfire smoke reduced U.S. air … average annual pollution due to wildfires in Canada, the report says.
In …
… pollution, including the United States.
Canada was the most polluted country … more than 45 million acres. Canadian wildfire smoke reduced U.S. air … average annual pollution due to wildfires in Canada, the report says.
In …