UC Irvine scientists devise method for cities to measure greenhouse gas emissions
Peer-Reviewed Publication
Updates every hour. Last Updated: 6-Nov-2025 03:11 ET (6-Nov-2025 08:11 GMT/UTC)
A new monitoring method created by UC Irvine scientists provides a cost-effective method for cities to measure their greenhouse gas emissions. It involves sampling turfgrass, which is shown to be a reliable recorder of fossil carbon dioxide concentrations. Cities without expensive gas monitoring equipment may find the tool useful.
A new study has yielded clues about when dormant microscopic bacteria and fungi in soil "wake up" and colonize roots, which influences plant growth and health.
Air pollution is a major environmental challenge of this century. In a recent Journal of Environmental Sciences review paper, scientists from the Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, have highlighted potential technologies for direct purification of air pollutants in the environment, including photocatalysis and ambient non-photocatalytic approaches. They also propose the novel concept of an ‘Environmental Catalytic City.’
Silver iodide is the material of choice to make clouds release rain and snow. For decades, its remarkable ability to trigger precipitation has been used in cloud seeding to prevent hail damage and mitigate droughts. Now, for the first time, researchers at TU Wien have revealed in atomic detail how this process works.
An international research team has published a pioneering study in Nature Sustainability unveiling the hidden water footprint of materials such as steel, cement, paper, plastics, and rubber. The findings highlight alarming growth in freshwater consumption tied to industrial production, raising urgent sustainability concerns for water-stressed countries.
For the past 250 years, people have mined coal industrially in Pennsylvania, USA. By 1830, the city of Pittsburgh was using more than 400 tons of the fossil fuel every day. Burning all that coal has contributed to climate change. Additionally, unremediated mines—especially those that operated before Congress passed regulations in 1977—have leaked environmentally harmful mine drainage. But that might not be the end of their legacy.
In research presented last week at GSA Connects 2025 in San Antonio, Texas, USA, Dr. Dorothy Vesper, a geochemist at West Virginia University, found that those abandoned mines pose another risk: continuous CO2 emissions from water that leaks out even decades or centuries after mining stops.