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Une étude sur 2.000 rivières américaines a prouvé que l'intervention humaine sur les cours d'eau démultipliait le risque d'événements extrêmes, tels que les inondations et sécheresses. 
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Scoop.it!
A non-profit conservation group has acquired three new pieces of land in the St. Lawrence River enabling it to protect some unique ecosystems that are home to vulnerable species of plants and animals. They add to areas already protected by the group, the Nature Conservancy of Canada (NCC). The St. Lawrence River is one of…
DocBiodiv's insight:
Conservation de la nature Canada (CNC) est le plus important organisme national de conservation des terres au Canada. C’est un organisme privé sans but lucratif http://www.natureconservancy.ca
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Scoop.it!
In Canada's Yukon territory, researchers found a shift in water flow from one river to another that was “geologically instantaneous."
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"The study from the University of Waterloo analyzed the seasonal flow patterns of 2,272 streams in Canada and the U.S. and found that human-managed streams—those impacted by developments like dams, canals, or heavy urbanization—had significantly different flow patterns compared to streams in natural watersheds." https://phys.org/news/2022-03-human-actions-climate-driven-droughts.html