About the talk
The earth system as we know it is rapidly reorganizing in response to human-induced changes in large-scale biogeochemical cycles and climate. Scientists studying these changes increasingly face moral dilemmas in regard to the environmental impact of their research. In response, an increasing number of researchers are working to “green” their science. Greening field work in the extreme conditions of the Arctic has proven to be especially challenging. During 2017, Edwards embarked on an ambitious project to traverse the Greenland ice sheet, taking environmental samples from a zero-emission, wind-propelled, solar-powered sled system: the Inuit WindSled. During the approximately 1,200-kilometer traverse, Edwards collected surface samples of black carbon “smoke” nanoparticles deposited on the ice sheet from fires and fossil-fuel combustion. In this presentation, he will share a personal account of the expedition, as well as his thoughts on the impact of smoke in the Arctic and the greening of science.
About the speaker
A researcher with the Physics and Astronomy department of Curtin University in Western Australia, Edwards investigates the present and past history of smoke and other aerosols in the global atmosphere. He is currently a visiting professor with the UW–Madison College of Engineering’s Department of Civil and Environmental Engineering.