Organic pollutants such as pesticides and industrial chemicals commonly pose risks to aquatic ecosystems, even in protected rivers and streams. This is the conclusion of a new study by RPTU University Kaiserslautern-Landau, based on the analysis of more than 180 million water measurements from the French long-term monitoring program “Naïades” The study shows that pollutants are detectable in nearly all of the water bodies examined and that groups of substances often overlooked in earlier studies contribute significantly to environmental risks.

A Targeted Approach to Soil Cadmium

Cadmium (Cd) contamination in agricultural soils can threaten the safety of food and medicinal plants because the fraction available in soil is closely linked to plant uptake. Mining, inappropriate fertilizer use and sewage irrigation are among the human activities associated with soil heavy-metal pollution. Biochar can immobilize metal ions through processes including complexation, precipitation and ion exchange, but its effectiveness depends on the biomass used to make it and the production conditions. A tailored approach is therefore important when using biochar to reduce Cd availability.

Authors Xiaochen Zhu, Carol Sze Ki Lin, Ziting Wang, Chong Li, and colleagues from Kunpeng Institute of Modern Agriculture at Foshan, City University of Hong Kong, and Guangxi University, among other institutions, combined a meta-analysis with laboratory and pot experiments. They screened 3,339 articles published between 2001 and 2024 and included 134 studies meeting their criteria, extracting 640 comparisons. The analysis assessed how biochar feedstock, pyrolysis conditions, modification, application rate and soil properties related to available soil Cd and plant Cd accumulation. The team then prepared biochars from four Chinese medicine residues, tested Cd adsorption kinetics, and conducted pot experiments with lettuce, dandelion and Lanzhou lily.

Cultivating crops – such as wheat, barley and rye – alongside rows of trees is a system of agroforestry that is known as “alley-cropping”. It serves many functions: in addition to enhancing ecosystems and biodiversity, it can also counteract the negative effects of growing crops in treeless open land. The advantages of alley-cropping come from the interaction between trees and crops, resulting in improved soil quality, reduced wind erosion, enhanced nutrient cycling, and climate change mitigation through increased carbon capture. However, rows of trees can create competition for resources such as water, sunlight and nutrients, which negatively affects crop yield. A research team led by the University of Göttingen has now shown that, in systems with rows of fast-growing poplar trees, choosing between winter and spring crops based on the age of the trees can cancel out competition, creating opportunities for farmers to optimise their harvests. The results were published in the journal Agronomy for Sustainable Development.

Understanding how each individual leaf, stem, and bud grows and changes over time is essential for breeding better crops, but traditional tracking methods are either extremely laborintensive or cannot operate in real time. 

In findings recently published in Parasites and Vectors, Virginia Tech’s Warren Booth cites evidence that bed bug infestations can affect anyone regardless of income, housing type, or location. The findings indicate bedbug management strategies should evolve to a more coordinated, community-level approach. Booth shares insights about this work and the unpopular pest.

Researchers at Kyushu University have developed a smart packaging film that changes color and glows under UV light in response to compounds released as meat spoils. Made with milk-derived casein, modified anthocyanins, and a metal–organic framework, the film responds to volatile compounds released during spoilage. On refrigerated mutton, fluorescence appeared at around Day 6, and the optimized film also slowed spoilage, showing its potential for monitoring freshness and helping preserve food quality.

Enhanced rock weathering could become an important carbon dioxide removal option in European agriculture, but applying rock dust is not itself evidence of durable carbon removal. A new Perspective in Energy and Climate Management argues that the European Union should develop an ERW-specific certification methodology before large-scale carbon crediting begins. The proposed approach distinguishes potential from certifiable removal, combines near-field measurements with conservative modelling of downstream processes, deducts lifecycle emissions, treats time lags and uncertainty explicitly, and requires feedstock, site-suitability and no-harm safeguards. Agricultural and soil-policy instruments could support monitored deployment while tonne-for-tonne crediting is not yet justified.