https://www.youtube.com/embed/yDUGQ8ERDrc Wildfires in the boreal forests of Canada and Russia of rising intensityare sharply reducing air quality and pumping tons of carbon dioxide intothe earth's atmosphere, the EU's earth observation programme has warned. Fires in Canada's main oil-producing province of Alberta alone have burntabout 1 million acres since January 1 and forced nearly 30,000 people…