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Mercury levels in the Great Lakes are increasing as temperatures warm and extreme weather becomes more frequent, according to research in Minnesota’s Marcell Experimental Forest. Mercury is a global pollutant released into the atmosphere through fossil fuel burning. It is then deposited onto land and water.
When peatlands like those in northern Minnesota begin releasing their ancient carbon — and they soon will — there will be no going back.
Researchers come to the forest to study how different degrees of global warming might impact the world's northern forests.
Thawing permafrost, drowned trees, methane releases and increased wildfires, are slowly transforming Northern Forests from carbon sinks to carbon emitters.
From Minnesota to the Northwest Territories, researchers are studying dramatic changes in the vast northern forests: thawing permafrost, drowned trees, methane releases, increased wildfires, and the slow transformation of these forests from carbon sinks to carbon emitters.