Earth’s atmosphere is made up of many different gases, some of which are “greenhouse” gases. They are called that because they effectively act like a greenhouse or a layer of insulation for Earth: they trap heat and warm the planet. For the past couple of hundred years, human activities (such as burning coal to generate…
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A whole generation of Canadians has never experienced what was considered a “normal” Canadian climate for most of modern history. Historical records show that every year since 1998 – that’s 20 years ago now – has been warmer than the 20th century average. The images below illustrate historical Canadian climate data back to 1898 (Data…
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