Controls on Nitrogen Nutrient Availability in the Arctic Tundra

Scientists measured how nitrogen availability to plants varies spatially and temporally in the Arctic tundra.

Earth Science Women's Network Member Spotlights - Colleen Iverson

Dr. Colleen Iversen is an ecosystem ecologist who uses a variety of field and laboratory techniques to understand and predict how ecosystems are shaped by environmental change.

Breaking the Ice: ORNL Explorer Back from the Arctic

You think it's cold in East Tennessee? Try getting close to the North Pole, where the wind chills in early autumn routinely whip down to -25°C (-13°F).

Cold, Hard Data: ORNL Data Scientists Support Historic Arctic Expedition

Misha Krassovski is one of the 60 some scientific personnel who embarked on the first leg of the largest polar expedition of all time, called the Multidisciplinary Drifting Observatory for the Study of Arctic Climate, or MOSAiC.

Climate Change is Turning Arctic’s Carbon Sinks into Carbon Emitters

Emission data shows that the thawing of permafrost is turning these areas from carbon sinks into carbon emitters.

Wildfires Could Permanently Alter Alaska’s Forest Composition

Berkeley Lab study finds evergreen conifer trees will decline and deciduous broadleaf trees dominate in a warmer climate with more wildfires.

Arctic Permafrost is Thawing Fast

As the frozen ground warms much faster than expected, it's reshaping the landscape--and releasing carbon gasses that fuel global warming.

Plants May Absorb Less Carbon Under Climate Change

Current assessments of climate change could overestimate the amount of carbon that plants remove from the atmosphere.

Utqiaġvik Barbecue Connects People to Scientific Research Next Door

There’s a lot of science that happens on the North Slope. Some of it’s homegrown, like the wildlife research done by the North Slope Borough. But a lot of it is done by scientists who spend weeks or months doing field work here before heading home.

Experiments in Northern Alaska Seek to Improve Projections for a Changing Arctic

Plant physiologist Alistair Rogers standing by a warming chamber on the tundra close to Utqiaġvik. The experiment is part of a larger project run by the Department of Energy to collect data on natural processes in order to better predict how the Arctic wi