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University of Guelph

Claudia Wagner-Riddle is a Professor in the School of Environmental Sciences at the University of Guelph, Canada. She leads collaborative research teams addressing many aspects of agronomy including greenhouse gas emissions, soil health, crop yields, and nutrient loss pathways. Claudia is an expert in the application of micrometeorological flux techniques to agricultural emissions of nitrous oxide, a greenhouse gas related to nitrogen fertilizer applications.  Her research aims at better understanding the processes that lead to nitrous oxide emissions and to carbon sequestration, with the ultimate goal of decreasing the carbon footprint of food production.


Claudia Wagner-Riddle is originally from Brazil, where she obtained a B.Sc. in Agronomy and M.Sc. in Agrometeorolgy at ESALQ, University of São Paulo. She holds a PhD from the University of Guelph and has been recognized as a Fellow of the Soil Science Society of America and a Fellow of the American Meteorological Society. Claudia is the Editor-in-Chief of the international journal Agricultural and Forest Meteorology and leads a nation-wide training program on Climate-Smart Soils in Canada. She is the Director of the North American regional chapter of the International Nitrogen Initiative and was awarded the 2020 IFA Borlaug Award of Excellence in Crop Nutrition.

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