Recent research suggests that ice acceleration disappears in Greenland, and Antarctica will have a large and undervalued effect on extreme weather in Canada.
A paper in the journal Nature describes the most detailed large-scale study yet on how melting ice caps affect people all over the world.
It says that Central and Eastern Canada will be among the most affected areas and can ultimately expect the weather variation to almost double.
The research predicts that hot and cold snaps will be longer and deeper, wet magic will become soggies and dry stretches will be longer.
McGill University Researcher Natalya Gomez says the results are not included in current estimates of climate change, and the consequences are likely to be more dramatic than expected.