Finding the human fingerprint in Northern Hemisphere greening

Using newer data and strict statistical methods, a multinational team led by the Oak Ridge National Laboratory Climate Change Science Institute’s (CCSI’s) Jiafu Mao has found the first positive correlation between human activities and enhanced vegetation growth in the northern extratropical latitudes (NELs; roughly between 30°N and 75°N). “This is the first clear evidence of a discernible human fingerprint on physiological vegetation changes at the continental scale,” Mao says.

Drying Arctic soils could accelerate greenhouse gas emissions

OAK RIDGE, Tenn., June 13, 2016—A new study published in Nature Climate Change indicates soil moisture levels will determine how much carbon is released to the atmosphere as rising temperatures thaw Arctic lands. An international team led by Northern Arizona University scientists analyzed the results of 25 experiments from multiple research groups including the Department of Energy’s Oak Ridge National Laboratory. The researchers had measured the release of greenhouse gases from incubated soil samples, which originated in field sites in Alaska, Canada and Russia, under a temperature increase of 10 degrees Celsius.

Norby elected fellow of Ecological Society of America

Richard J. Norby

Richard Norby, a physiological ecologist in the Environmental Sciences Division and Climate Change Science Institute, has been elected fellow of Ecological Society of America. Richard is cited by the professional society of ecologists "for fundamental research on the response of terrestrial organisms and ecosystems to elevated carbon dioxide atmospheres and environmental changes."

Senior Research Scientist Positions Available at CCSI

The Climate Change Science Institute (CCSI) at Oak Ridge National Laboratory (ORNL) is recruiting two senior research scientists. One position is in the Impacts, Adaptation, and Vulnerability (IAV) group and the other is for a data scientist in the Data Integration, Dissemination, and Informatics (DIDI) group.

CCSI’s Melanie Mayes receives DOE SC Early Career Research Program award

Melanie A. Mayes

The Climate Change Science Institute’s (CCSI’s) Melanie Mayes was one of four ORNL researchers to receive a 2016 US Department of Energy (DOE) Office of Science (SC) Early Career Research Program research grant. The program, now in its seventh year, is designed to bolster the nation's scientific workforce by providing support to exceptional researchers during the crucial early career years, when many scientists do their most formative work.