NRES

Corn bred with genes from wild relatives can reshape soil microbial communities and reduce nitrogen loss — with no yield reduction — according to new research from the University of Illinois Urbana-Champaign. The advancement marks the first time corn’s genetic makeup has been linked with inhibition of nitrifying and denitrifying bacteria, the microbes responsible for turning fertilizer nitrogen into forms that pollute water and contribute to climate change.   

Scientists at the University of Illinois Urbana-Champaign can now differentiate between human-derived and hydrological contributions of riverine nitrogen pollution in the Upper Mississippi River Basin. The advancement, published in Environmental Science and Technology, sets the stage for more nuanced policy and management of nitrate and nitrite, the nutrients that degrade drinking water quality and cause oxygen-starved “dead zones” in the Gulf each year.

"Take nothing but pictures, leave nothing but footprints.” That’s what kids are usually told on nature walks. But Caitlin Bloomer, aquatic ecologist and teaching assistant professor at the University of Illinois Urbana-Champaign, believes that a more hands-on, land-based approach is needed to improve conservation. So when she traveled to Minnehaha Falls, Minneapolis, this summer to help lead a nature walk for kids, they went home with some invasive crayfish. 

Cover crops improve soil health and water quality, prevent nutrient loss, and reduce greenhouse gas emissions, but they’re only grown on about 5% of U.S. agricultural lands. That’s despite billions in annual federal investments, primarily in the form of cost-share and incentive payments to farmers who adopt conservation practices.   

A new study from the Agroecosystem Sustainability Center (ASC) of the University of Illinois Urbana-Champaign provides one of the most comprehensive explanations to date of how tile drainage, a common agricultural practice, enhances the functioning of agricultural landscapes. Although tile drainage has been widely studied as an important form of agricultural infrastructure, the new study built a comprehensive framework to explain why tile drainage is so effective across a wide range of outcomes.

Farmers plant or preserve riparian buffers for various reasons, such as improving water quality, controlling erosion, or maintaining hunting habitat. Now, a new study from the University of Illinois Urbana-Champaign underscores the benefits of riparian buffers to terrestrial biodiversity, finding that for every 10% increase in forest cover, an additional species is present. 

Three ACES scientists are among 12 faculty at the University of Illinois Urbana-Champaign who have been named to the 2025 Clarivate Analytics Highly Cited Researchers list. The list recognizes researchers and social scientists who have demonstrated exceptional influence, as reflected through their publication of multiple papers frequently cited by their peers during the last decade.

On a 2009 hike in the Huachuca Mountains of southeastern Arizona, a group of birders heard an otherworldly, ethereal bird song floating, flute-like, through the canyon. The hikers identified the singer as a brown-backed solitaire, recognizing immediately that the bird was very far from home. The brown-backed solitaire spends its life in the mountain forests of Mexico and Central America — what was it doing in Arizona? 

Students in the College of Agricultural, Consumer and Environmental Sciences know communication is key. From public speaking requirements to advanced composition classes, ACES students are trained to share their knowledge with the world. Pam Leiter, the recruitment coordinator for the Department of Natural Resources and Environmental Sciences, is part of that effort.

The Institute for Sustainability, Energy, and Environment (iSEE), College of Agricultural, Consumer and Environmental Sciences (ACES), and The Grainger College of Engineering celebrated the investiture of two campus researchers for their leadership in advancing resilient food systems, clean energy transitions, and shaping global sustainability technologies.