Sustainability in the News

Source: University of Michigan Center for Sustainable Systems (CSS) Newsletter, March 2026

'CSS faculty Ben Goldstein, with co-authors Estefany Cabanillas and Mark Lefsrud, published a new study comparing controlled-environment lettuce farming to conventional agriculture across Canada, finding that controlled-environment agriculture can reduce water and land use, but the environmental benefits hinge on local energy grids. In provinces with low-carbon energy grids, like Quebec, the climate change impacts of controlled urban farming are lowered. In contrast, in carbon-heavy grids like Alberta, emissions exceed those of conventional farms. The results underscore that urban agriculture’s sustainability depends on low-carbon energy sources and geography, suggesting controlled-environment agriculture should be prioritized in cities with low-carbon energy grids or alongside renewable energy sources.'

Read the study in Agronomy for Sustainable Development.

Source: The New Lede, 3/10/26

‘A genetically modified wheat under development in the US would increase the use of an herbicide that is linked to soil, water and fetal harm, according to a new report. The report, from the environmental organization Friends of the Earth (FOE), comes six months after agricultural organizations announced they are partnering to develop what would be the first genetically modified (GMO) wheat, called HB4, commercially available in the US. Proponents of HB4 say it is drought-tolerant and will bolster food security and help farmers grow wheat in a changing climate. FOE said that HB4 — which was approved by the US Department of Agriculture (USDA) in 2024 — would prompt more use of the herbicide glufosinate, which scientific studies have linked to premature births, impaired fetal development, kidney problems and disruption of the gut microbiome. HB4 is engineered to withstand glufosinate, which can be sprayed directly on the wheat and will only kill weeds. The FOE report also warns that HB4 could hamper US exports since not all importing countries accept GMO wheat, and it would harm US farmers that are not using GMO wheat by contaminating their fields.’

Source: Chemical & Engineering News, 3/11/26

‘Cobalt and nickel, bound together in lithium-ion battery cathodes, are difficult to separate during battery recycling. Researchers have now found a way to tease the elements apart electrochemically with the help of tartaric acid, which is found in grapes and is a wine-industry by-product (Sci. Adv. 2026, DOI: 10.1126/sciadv.aec7956).'

Source: Chemical & Engineering News, 3/9/26

'Ski waxes that incorporate organic fluorine help winter athletes glide better on snow. Fluorine-containing waxes have been banned from competitions since 2023 because of concerns about PFAS. This year's Winter Olympics was the first to deploy the fluoro wax test, which is based on Fourier transform infrared spectroscopy to detect carbon-fluorine signatures.'

Source: University of Illinois Urbana-Champaign, 3/4/26

Olefin epoxidation is a process used to generate epoxide chemicals, which are the backbone of the textile, plastic, chemical, and pharmaceutical industries. The current industry-standard process uses harsh peroxides, which are difficult to dispose of safely and emit carbon dioxide, to facilitate oxidation reactions. Water can be used as an oxidant instead of peroxides, but its O-H bonds are difficult to break, requiring high-temperature conditions. That makes using water as an oxidant highly energy-intensive and further contributes to CO2 emissions. University of Illinois Urbana-Champaign chemistry professor Prashant Jain's research group, with colleagues from the Universidade de São Paulo and Northwestern University, demonstrated a method combining the power of electricity and energy from visible-light photons to break the H-O-H bonds in water, effectively turning water into an oxidant without requiring high-temperature heating.

Read their study, published by the American Chemical Society, at https://pubs.acs.org/doi/10.1021/jacs.5c18709.