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above flight paths illustration

NASA armada targets thaw in Arctic soil

On a 10-meter-square plot of frozen soil in central Alaska, Ted Schuur is creating a window to the future. Schuur, an ecologist at Northern Arizona University (NAU) in Flagstaff, is intentionally warming this patch of permafrost to see how much of its carbon— now locked in frozen plant matter buried […]

Terrestrial Carbon Cycle

The Arctic continues to warm at a rate that is currently twice as fast as the global average (see essay on Surface Air Temperature). Warming is causing normally frozen ground (permafrost) to thaw, exposing significant quantities of organic soil carbon to decomposition by soil microbes (Romanovsky et al. 2010, Romanovsky […]

Northern Arizona University campus in the summer showing buildings in the foreground and the Peaks in the background

Grad positions at ECOSS

PhD and MS positions in Ecosystem Ecology are available in the Center for Ecosystem Science in Society (Ecoss) at Northern Arizona University. The Ecoss mission is to conduct high-impact, innovative research on ecosystems and how they respond to and shape environmental change, to train next-gen scientists, and to communicate discovery […]

Long-term CO2 production following permafrost thaw

Thawing permafrost represents a poorly understood feedback mechanism of climate change in the Arctic, but with a potential impact owing to stored carbon being mobilized1, 2, 3, 4, 5. We have quantified the long-term loss of carbon (C) from thawing permafrost in Northeast Greenland from 1996 to 2008 by combining […]