Answer:
Over the years with increasing temperatures from centuries Canada's weather temps has increased highly. You see, Canada has always been a country with low temperatures. With global warming and carbon dioxide being reused for decades causes build-up in the atmosphere and since that reused carbon has been through the layers (of the atmosphere) it releases higher tempratures. Carbon can reach the thermosphere. But you may be wondering why Canada is still a cold place if the thermosphere is the hottest layer. That's because CO2 is the primary gas that radiationally cools the thermosphere, but at solar maximum, increases in other minor gases cause CO2 cooling to be less important. The "build-up" in the atmosphere gets released because that's how we are still alive.
Step-by-step explanation: