From his pioneering studies of acid rain in the 1970s to his ongoing work on the global impact of human-generated reactive nitrogen in the environment, Jim Galloway, the University of Virginia’s Sidman P. Poole Professor of Environmental Sciences, has long been one of the world’s trailblazing environmental scientists.

As the author of numerous groundbreaking books and articles advancing the applications of social psychology to address social problems, Timothy D. Wilson, UVA’s Sherrell J. Aston Professor of Psychology, has built an equally eminent reputation within his field over the decades.

Recently, these College and Graduate School of Arts & Sciences colleagues – who are also research collaborators – received word of the latest recognition of their scientific achievements: they were elected to the National Academy of Sciences, one of the highest honors for a scientist.

Their elections increase the number of active UVA faculty within the academy to five. Galloway and Wilson were among 120 new members and 26 international members whose election was announced April 27 in recognition of their distinguished and continuing achievements in original research.

“It’s an incredible honor to be elected,” Wilson said. “The National Academy of Sciences is a very elite group, and it’s an incredible surprise.”

Quick to credit his research colleagues at UVA and other institutions, as well as the many students who have contributed to his projects, Galloway said he feels privileged to work in a field and at a university that encourages imaginative research.

“It’s the freedom to ask questions, and the ability to work within a creative environment fueled by the energy of so many young, extremely talented and ambitious students,” Galloway said. “I just keep asking questions, and I thank UVA for giving me the freedom to continue to keep asking them.”

The Impact of High-Quality Science

A member of UVA’s faculty since 1976, Galloway is considered one of the world’s leading environmental scientists researching human impacts on the global nitrogen cycle, but his early work in the 1970s established him as a prominent force in the study of acid rain. He and his colleagues led an influential study that demonstrated how precipitation was far more acidic than expected, and that the increased acidity was due to air pollution. For more than 30 years, Galloway has played an instrumental role in the study the effects of acid rain on native brook trout in Virginia and the southern Appalachians. The Shenandoah Watershed Study is the longest-running watershed research and monitoring program in the National Park System.

“The impact of the high-quality science done by Jim and others in this case cannot be overemphasized,” Michael Pace, Galloway’s colleague in the Department of Environmental Sciences, said.

In his most recent work, Galloway is examining how to maximize the use of nitrogen for beneficial purposes (i.e., food production) while minimizing its negative impacts on people and ecosystems.

Twelve years ago, he received the Tyler Prize for Environmental Achievement for developing the concept of a “nitrogen cascade” to describe the cumulative impact of human-generated reactive nitrogen in the environment. As explained by Galloway and his research colleagues, reactive nitrogen compounds don’t disappear. Some may emerge as smog-forming compounds, then are deposited in forest soils and groundwater as nitric acid before moving to the coast, where they create algae blooms and dead zones. The cycle continues with nitrogen’s return to the atmosphere in the form of nitrous oxide, a greenhouse gas.

“No one was doing too much research before about nitric acid,” Galloway said. “So I just started asking questions about nitrogen in the environment, and that led me down some good alleys, some bad alleys. But as we continued moving forward we were able to create a first global cycle for nitrogen.”

In 2013, that pioneering work enabled Galloway, with the assistance of then-graduate student Allison Leach, to persuade UVA’s Board of Visitors to approve a plan to reduce the emissions of reactive nitrogen from campus activities 25 percent by 2025. In the four years that followed, UVA went from being the first university in the world to calculate its “nitrogen footprint” to organizing a network of 20 higher education institutions in the United States and abroad, measuring and attempting to reduce their output of reactive nitrogen that creates smog, acidifies water sources and weakens the upper-atmospheric ozone layer.

UVA’s work with seven other institutions to launch the Nitrogen Footprint Tool Network was highlighted four years ago in a special issue of “Sustainability: The Journal of Record.” Since then, the project has established nitrogen footprint models for more than 600 colleges and universities. It is also working with researchers internationally to create models for 10 countries, including Australia, Brazil, Canada, Denmark, Germany, Japan, The Netherlands, Tanzania and Ukraine.

A popular teacher and mentor to students, Galloway has inspired countless students to work on his initiatives and make valuable contributions to the research.

Libby Dukes, a 2018 environmental sciences graduate, first encountered Galloway as a student in his “Resources and the Environment” course six years ago. She went on to work with him as an undergraduate research assistant and now works full-time as his research assistant on the UVA Nitrogen Footprint project. She credited Galloway’s mentorship with helping her get her undergraduate thesis, a nitrogen footprint analysis of Baltimore, published this year in “Environmental Research Letters.”

“Jim has been an amazing mentor to me and to all of the students I have seen work with him,” Dukes said. “He has given me so many opportunities to share the work that we are doing at national and international conferences, and guided me through writing and submitting my first scientific publication, which have been fantastic experiences for my professional and personal development.”

Exploring the Frontiers of Self-Knowledge

Recently, Galloway and Wilson have been collaborating on a research project to investigate the influence of food labels on sustainable food purchases. A paper based on several years of lunchtime surveys, conducted on Grounds in the West Range Café by student research assistants gauging people’s awareness of environmental sustainability issues and their impact on their lunch selections, is currently under review for potential publication.

Seeking the insight of one of the world’s foremost researchers in social psychology to design an interpret the study was an easy choice for Galloway.

The 2015 winner of the Association for Psychological Science’s William James Fellow Award in recognition of his “lifetime of significant intellectual contributions to the basic science of psychology,” Wilson is the author of numerous influential books and other works on the topic of the limits and sources of self-knowledge, based on his research on applications of social psychology. Wilson also been elected to the American Academy of Arts and Sciences and is a recipient of UVA’s highest academic honor, the Thomas Jefferson Award for Excellence in Scholarship, as well as an All-University Outstanding Teaching Award.

Since the beginning of his career as a research psychologist, Wilson has been interested in the subject of self-knowledge: how human beings understand who they are and why they do the things they do. His early research was focused on understanding the unconscious and the limits of one’s capacity to understand their own motives, and that early work helped to establish the idea that the unconscious is not simply the home of the mind’s more primitive urges, as Freud suggested, but something much more complex.

According to Wilson, the unconscious has evolved as an efficient and “extremely sophisticated way of sizing up the world and making decisions in ways we have no idea we’re doing.” But with such an important aspect of our behavior and our motivation hidden from us, Wilson said, “That raises interesting questions about how we come to know ourselves.”

The search for answers led him to realize that “there are a lot of similarities between how we come to know other people and how we know ourselves,” Wilson explained. “We observe behavior; we gather as much data as we can about ourselves and what our thoughts are, and then we make a story.”

The idea that human beings create narratives about themselves was the subject of Wilson’s book, “Strangers to Ourselves: Discovering the Adaptive Unconscious,” which examines how humans construct stories as a way of understanding who they are and what they want to become, despite the limitations of their self-knowledge – an idea that has changed the way scientists think about how people understand themselves and how they make decisions about their lives.

“‘Strangers to Ourselves’ immediately became a must-read among behavioral scientists and philosophers,” Alev Erisir, chair of UVA’s Department of Psychology, said. “Malcolm Gladwell, the author of the New York Times Best Sellers ‘Blink,’ ‘The Tipping Point’ and ‘Outliers,’ notes ‘In ‘Blink,’ I probably owe a bigger intellectual debt to Tim Wilson than anyone else, and ‘Strangers to Ourselves’ is probably the most influential book I’ve ever read.’

“Professor Wilson’s ideas about self-knowledge and unconscious mental processes have enjoyed a remarkably high level of dissemination, and his ideas have become common knowledge,” Erisir added. “How many scientists can claim this level of impact on public discourse?”