Climate activist Greta Thunberg, left, and John Pomeroy, director of the Global Water Futures program, are shown during a visit to the Athabasca Glacier in Jasper National Park in this recent handout photo. Mark Ferguson / THE CANADIAN PRESS
Food security is an urgent and growing concern for Indigenous populations in Canada. Environmental change in aquatic ecosystems can impact the health of fish and the communities that rely on those fish in many ways. Some of those ways can involve exposure to contaminants like mercury.
Warmer winters are leading to a greater frequency of freeze-thaw events and colder soils due to the loss of the insulating snowpack. These factors are subsequently changing the movement of water, carbon and nutrients in soils during the winter. Many assume that frozen soils are dormant. However, a new research project at the University of Waterloo is discovering that soils remain biogeochemically active during winter months, just differently from other seasons.