Sources Cumulative National Emissions Rankings (2014) 6 Graphs Explain the World’s Top 10 Emitters, …
According to the US National Academy of Sciences, over the past 30 years, there has been a fourfold increase in the number of large and long-duration forest fires in the American West. The length of the fire season has expanded by 2.5 months, and the size of wildfires has increased several times over. More than half the US Western states have experienced their largest wildfire on record since 2000.
Pushing global temperatures past these thresholds can trigger irreversible changes even if we do not add any further CO2 to the atmosphere. These changes may be abrupt or may take hundreds of years, but once the threshold is passed they cannot be reversed.
Alberta declared a state of emergency and ordered the evacuation of the more than 88,000 residents of Fort McMurray, a town in the heart of Alberta’s oil country, as a first responders struggle to contain a massive, wind-whipped wildfire.