Climate change geese measuring carbon greenhouses gasses Yukon Delta

Carbon dioxide, geese and greenhouse gasses

“The effects of climate change are are really complex,” and “There are a number of changes that are happening together that are going to ultimately affect how ecosystems operate,” Kathy Kelsey, postdoctoral researcher at the University of Alaska Anchorage, told Frontier Scientists. Kelsey and colleagues are studying changes in the Yukon-Kuskokwim Delta (YKD) of western […]

Ice and fire and permafrost

May 20 2015, 9pm in Alaska, tune in to KAKM Science Wednesdays, Alaska Public Media, for Frontier Scientists’ CHANGING PERMAFROST. Under the tundra thawing Permafrost forms thermokarst features, causing sinkholes and landslides. Shifting climate conditions release greenhouse gases locked beneath the tundra in previously frozen ground. The episode features University of Alaska Fairbanks Geophysical Institute […]

Leftover Lunch for Microbes

A needle on lab equipment wavers as the machine tracks precise changes in carbon dioxide concentrations in a sample. Water flows through tubes. In every droplet of water there might be a million microbes swimming, feeding. It’s a zoo in there. University of Michigan researchers Dr. Collin Ward, postdoctoral fellow in the Department of Earth […]

Impact and the Arctic

Arctic changes have global impacts. This month the United States assumes chairmanship of the Arctic Council, a forum which promotes intergovernmental cooperation in the Arctic region. The U.S. will chair the council from 2015 to 2017. In conjunction a booklet titled Arctic Matters: The Global Connection to Changes in the Arctic has been released. The […]

water sample science Sagavanirktok River Alaska

Testing Alaska’s Sagavanirktok and Kuparuk rivers

“We are interested in studying what happens to this material as it makes its way to the ocean… The transformations that it undergoes.” Jason Dobkowski, lab manager in the Department of Ecology and Evolutionary Biology at the University of Michigan, explained his work as he crouched on treacherous muddy ground to collect water at a […]

Dobkowski sampling brown water

Tea water in Arctic rivers– carbon pathways

At the turn of the season as snow and ice melt, Alaska’s waterways open up. “This is the highest this river will be this season,” Jason Dobkowski said. “Here is this giant flush of particulate and nutrients that flow through the river. So we are trying to make sure we sample at this big flush […]

Squirrels’ role in climate change puzzle

Alaska’s North Slope is home to Arctic ground squirrels. Near the Atigun River their interlaced burrow network takes advantage of sandy soil. The burrows are so interconnected and the entrances so myriad that the scientists working there to decode Arctic ground squirrel mysteries carry a map denoting burrow entrance numbers so they can be certain […]

The ground changing under our feet – Thermokarsts

Laura Nielsen for Frontier Scientists – Jason Dobkowski stands on the shores of Wolverine Lake. His research site is located in the North Slope of Alaska, nestled near the remote foothills of the Brooks Range. “I’m here studying permafrost thaw slump which is depositing silt and material into the lake behind me. And that material, […]

Tram Powered International Tundra Experiment

Liz O’Connell for Frontier Scientists – Multiple instruments, configured along a tram-like platform, sense the tundra below and gather detailed data while traveling along a 50 meter transect.  “We are gathering measurements that we don’t know exactly how they will be used,” said Steven Oberbauer, professor of biological sciences at Florida International University. The high […]

Plants march north

Laura Nielsen for FrontierScientists The face of the Arctic is changing as plant growth flourishes further north than before. According to the National Aeronautics and Space Administration (NASA), “Temperature and vegetation growth at northern latitudes now resemble those found 4 degrees to 6 degrees of latitude farther south as recently as 1982.” This change accompanies […]