First due sizeup8/8/2023 “All of these factors are, in a way, affected by our activities and climate change is definitely one of the most significant because it determines the amount of precipitation that we receive.” “Precipitation is the main source of the moisture or water, and then there’s conditions on the ground – that means land use and where the rainfall is occurring – and then there’s the previous and current measures that are in place to deal with the distribution of the moisture and so on,” said Simonovic. But the main one, he says, is climate change. Simonovic points to various factors that are contributing to the magnitude and frequency of extreme weather events in Canada, specifically when it comes to flooding. A recent report from the United Nations Intergovernmental Panel on Climate Change outlines a clear link between climate change and the occurrence of extreme weather events. This comes as representatives from around the world gather in Glasgow to discuss measures to tackle climate change. Projections show that these residents and others will be at increased risk of flooding. It is estimated that about four million Canadians now live in areas that have been affected by flooding. “They are all showing under the changing climates much higher levels of flood risk.” “Examples Vancouver with the Fraser River, the lower Mackenzie of Northwest Territories, the Assiniboine and Red rivers in Manitoba. “Across Canada, we are tracing and seeing a lot of locations that may be affected in the future a little bit more,” said Simonovic. Major parts of the country that could be affected include parts of Montreal and Vancouver, Simonovic said, among others. Using web-based maps, Simonovic illustrates flood frequency, depth and inundation in both the present and future. The interactive maps are a combination of about 150,000 reference documents, including current and historical rainfall and snow-melt data, topographic analyses, and various climate projections.
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