Tag: Climate science
World’s largest high Arctic lake shows startling new evidence of climate change
Remote areas in Canada’s Arctic region – once thought to be beyond the reach of human impact – are responding rapidly to warming global temperatures, the University of Toronto’s Igor Lehnherrhas found.
His research, published in Nature Communications, is the first to aggregate and analyze massive data sets on Lake Hazen, the world’s largest lake by volume located north of the Arctic Circle.
U of T research finds ponds in High Arctic could be significant source of carbon emissions
A new Canadian study involving researchers from the University of Toronto has found that carbon released by some ponds in the High Arctic could potentially be a hidden source of greenhouse gas emissions.
The study looked at how dissolved organic carbon (DOC) stored in Arctic permafrost – which is thawing at an accelerated rate due to climate change – is being released into Arctic watersheds as a result of physical disturbances that relocate nutrients across the landscape. For the first time, researchers were able to determine that the chemical composition of carbon in these ponds is vastly different than in rivers in the High Arctic.