What is the importance of the Greenhouse Effect?
The Greenhouse Effect is nothing new. Without it, the Earth would be about 33°C colder than it is today; an average of about -20°C. That is like a really cold winters day! A “Heat wave” might allow the temperature to rise just above the freezing point (0°C). An average autumn or winter day would drop the temperature to at least -40°C or -50°C. Imagine what record cold temperatures would look like! The coldest temperature ever recorded in Canada was only -63°C in the Yukon. Almost normal in a world without the Greenhouse Effect!
