![]() ![]() ![]() This warming effect depends on the total amount of GHGs accumulated in the atmosphere, the time that they remain in the atmosphere, and each GHG’s capacity to trap heat. In Canada, these changes include rising temperatures, shifting rainfall patterns, and increases in certain types of hazardous weather.Ĭlimate change is primarily attributed to the accumulation of greenhouse gases (GHGs), which traps heat in the atmosphere and causes a warming effect. Since the 1950s, many of the observed changes are unprecedented over decades to millennia Footnote 1. ![]() The scientific evidence is clear: the Earth’s climate is warming. International Climate Change NegotiationsĬlimate Change Science What is the issue?.This information was current as of November 2015. ![]()
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