
The recent Canadian wildfires have been responsible for 1 billion tonnes of carbon dioxide emissions by 27 July, Chinese scientists have estimated, confirming the impact to be greater than the country’s greenhouse gas emissions by human activity.
Canada has been battered by a relentless summer of wildfires, with hundreds of blazes burning for weeks. Officials have warned that this could be the country’s worst wildfire season on record and that smoke would be a problem “all summer” – for both the US and Canada.