September 21, 2012
Ice covering the Arctic Ocean melted to the smallest areal extent ever recorded this year, falling to 1.3 million square miles at its lowest point on Sept. 16, according to the National Snow and Ice Data Center. That’s less than half of the normal area covered by ice at summer’s end.
August 27, 2012
Anders Carlson and Kelsey Winsor reconstructed the pattern of ice-sheet breakup across eastern North America, western Europe and Scandinavia during the two most recent transitions out of a glacial state, about 20,000 and 140,000 years ago. They found that the speed and pattern of ice-sheet retreat depended on where the ice sheet was situated: ice sheets sitting solely on land broke up steadily in response to increasing amounts of incoming sunlight and rising greenhouse gas concentrations. Those that reached into the ocean exhibited a delayed breakup marked by periods of rapid retreat.
August 13, 2012
Jack Williams co-led and co-taught at Camp PalEON, an interdisciplinary summer short course held in the WI/MI Northwoods for paleoecologists, ecological statisticians, and ecosystem modelers. This first-ever course presented an integrated curriculum in the collection, analysis, and modeling of long-term ecological data, with an emphasis on Bayesian methods for assessing uncertainty in paleoecological data and methods for assimilating it with terrestrial ecosystem models.
July 23, 2012
Paleoanthropologist John Hawks and climate scientist Dan Vimont had never crossed paths on the Madison campus due to their very divergent areas of study. But they landed on common ground at the Kavli Indonesian-American Frontiers of Science Symposium, held July 11-15 in Solo, Indonesia.
July 5, 2012
Dan Vimont and Jack Williams are two co-PIs on a newly funded $3 million NSF IGERT with a variety of ecology faculty across campus (led by Volker Radeloff in Forest Ecology) to provide interdisciplinary graduate training on rapid change and biodiversity.
July 5, 2012
Steve Vavrus talks about the recent extreme heat and how it relates to climate changes.
June 25, 2012
Anders Carlson, a University of Wisconsin–Madison geosciences professor, discusses ice samples pulled from nearly a mile below the surface of Greenland glaciers have long served as a historical thermometer, adding temperature data to studies of the local conditions up to the Northern Hemisphere’s climate.
June 14, 2012
The Capital Times interviewed Jack Williams regarding a recent nature paper on ecological tipping points that he co-authored.
June 6, 2012
On June 6, 2012, Dr. Michael Notaro led a 1 1/2 hour seminar on "Wisconsin Climate Change" as part of the 50th Annual College Days event at UW-Madison. College Days offers an opportunity for individuals of all ages to experience college life, stay in the university dorms, and attend seminars taught by UW-Madison and UW-Extension faculty, staff, and community experts.