Barron Joseph Orr is the Chief Scientist at the United Nations Convention to Combat Desertification (UNCCD). In this capacity, he contributes to global efforts to address desertification and land degradation.

His professional interests lie in bridging the science-society divide, a focus he pursues through his diverse roles as an educator, researcher, and policy advisor. Orr's career history includes his tenure at the UN Convention to Combat Desertification.