Background
Sharon researches how Antarctic plants respond to climate change. She uses radiocarbon signatures left behind in the atmosphere by nuclear testing to date mosses and track environmental change around the coast of Antarctica. Her group identifies the sunscreens that plants make to protect themselves from elevated UV-B radiation resulting from ozone depletion. She is currently a member of the United Nations Environment Programme (UNEP) Environmental Effects Assessment Panel, assessing the various effects of ozone depletion worldwide.