CBC discusses how scientists have shown how much less snow we’re getting due to climate change. Peak snow mass has fallen 46 billion tonnes per decade in non-alpine regions of North America.
You may have noticed that we’re getting less snow in winter as the climate warms. But how much? The latest estimate is that the maximum amount of snow that collects on the ground each year in non-alpine areas of North America has been decreasing by 46 billion tonnes per decade since 1980, a new study reports. But interestingly, Eurasia’s annual snow has held steady.
The total amount of snow that falls, or the “snow mass” is important for all kinds of planning because it’s the amount of water released in the spring when the snow melts, says Chris Derksen, a research scientist at Environment and Climate Change Canada who co-authored the study published Wednesday in Nature.
“So this is the water that’s available for hydropower generation, for human consumption,” he said. “It’s also the snow melt that can provide a hazard through spring floods.”