Dr. Peter S. Searles is a plant ecophysiologist working on various aspects of olive trees, including irrigation, source–sink relationships, and the effects of global warming. He has been a research scientist with CONICET in Argentina for about 20 years and has also worked on ozone depletion and other climate-related topics. He graduated from the University of Maryland, College Park, USA, with a bachelor’s in biology in 1991. Then, he obtained a master’s and a PhD in ecology from Utah State University in 1994 and 2000, respectively. He is currently based in the province of La Rioja in Northwest Argentina.