Dr. Karen Christie-Whitehead is an award-winning scientist at the Tasmanian Institute of Agriculture (TIA), University of Tasmania, Australia. Her area of expertise is whole-farm-system modelling of livestock production systems, in particular ruminant livestock, to explore ways of improving resource efficiency (e.g., nutrients, water, livestock, pastures, soils), while adapting to climate change and mitigating greenhouse gas emissions to improve food production while maintaining profit in a socially and environmentally acceptable manner. Her 30+ years of experience in dairy, beef cattle, sheep and poultry research, grounded with working historically on farms, means Karen can see the broader issues facing the agri-food industries in reducing greenhouse gas emissions.  In 2023, as part of the TIA Agricultural Systems modelling team, Karen was awarded both the College of Sciences and Engineering Sustainability Award and the Vice-Chancellor's Sustainability Award for outstanding leadership in climate action, greenhouse gas emission mitigation and environmental stewardship. Recent publications include exploring the impacts of extreme climates on soil carbon, advancing the quantification of Australia’s beef cattle and sheep emissions, and exploring a range of mitigation options to reduce beef cattle and sheep greenhouse gas emissions in a productive and profitable manner while also considering the biodiversity implications of such options.