Under the RCP8.5 scenario (the concentration of carbon is at an average of 8.5 watts per square meter across the planet), the mean annual temperature in Canada is projected to increase by 1.8°C to 6.3°C compared to 1986-2005. During the same period, summer temperatures in Canada are projected to increase by 1.4°C to 5.4°C, and mean winter temperature is projected to increase by 2.4°C to 8.2°C.