Can you please explain why global O2 levels are dropping? (https://www.climatelevels.org/) What are the implications of this? How is agriculture involved? What should we be doing about it?"
May / June question comes from mixed sheep and cropping farmer, Christie Kingston of Goomalling WA.
Question Answered by Professor Snow Barlow & Professor Richard Eckard
Snow Barlow is a Professor Emeritus of Horticulture and Viticulture at the University of Melbourne. He is a plant physiologist and agricultural scientist, whose research encompasses plant water use efficiency, viticulture and impacts of climate change on agriculture, water management and global food security. His current research encompasses national and international climate change policy and the adaptation of Australia’s Viticultural and Horticultural Industries to Climate Change.
Together with his partner Winsome McCaughey, he also operates a commercial farm incorporating vineyards, grazing and farm forestry enterprises in the Strathbogie Ranges in North Eastern Victoria and markets wine under the Baddaginnie Run label.
Richard Eckard is Professor and Director of the Primary Industries Climate Challenges Centre (www.piccc.org.au), a joint research initiative between the University of Melbourne and the Victorian Department of Environment and Primary Industries.
His research focuses on strategies for reducing enteric methane and nitrous oxide from intensive grazing systems, and whole farm systems modelling of climate change adaptation and mitigation strategies in livestock production.
Richard holds a number of national and international science leadership roles, being a keynote speaker at a number of industry and international science conferences over the past few years. He is a science advisor to the Australian, New Zealand and UK governments, and the UN FAO, on climate change adaptation, mitigation and policy development in agriculture.