Extreme drought contributed to barbarian invasion of late Roman Britain, tree-ring study reveals

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Agriculture & Environment

Earth Sciences
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Drought’s Role in Barbarian Invasion of Roman Britain Revealed

The ‘Barbarian Conspiracy’ of 367 CE was one of the most severe threats to Rome’s hold on Britain since the Boudiccan revolt three centuries earlier. Contemporary sources indicate that components of the garrison on Hadrian’s wall rebelled and allowed the Picts to attack the Roman province by land and sea. Simultaneously, the Scotti from modern-day Ireland invaded broadly in the west, and Saxons from the continent landed in the south. Senior Roman commanders were captured or killed, and some soldiers…

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Process of coating strawberries with biofilm Credit: Mirella Romanelli Vicente Bertolo
Agricultural & Forestry Science

Edible Biofilm from Pomegranate Peel Extends Strawberry Shelf Life

Fruit coated with the material developed by researchers at the University of São Paulo showed 11% less weight loss during storage and took longer to start becoming contaminated by fungi An edible biofilm, obtained from agricultural and fishing waste and developed by researchers at the São Carlos Institute of Chemistry of the University of São Paulo (IQSC-USP) in Brazil, allows the shelf life of strawberries (Fragaria x ananassa Duch.) to be extended. In laboratory tests, the researchers found that over 12…

Plant species grown as cover plants, such as clover, can remove pollutants from the soil or fix them in their root systems. Credit: Harlekin-Graphics / AdobeStock
Agricultural & Forestry Science

Green Warriors: Cover Crops Battling Soil Pollutants

Nitrate, pesticides, metals, plastic – agricultural soils often contain pollutants. But are there sustainable and climate-friendly ways to restore and promote soil health in agricultural land? Yes, says a research team from the Helmholtz Centre for Environmental Research (UFZ). Specific plant species could be used as cover plants for phytoremediation, i.e. to relief agricultural land from adverse pollutant impacts. In their article published in Trends in Plant Sciences, the researchers summarise the results of more than 100 scientific studies and…

Debris and destroyed building that collapsed from the earthquake. Image by skarie20, Envato
Earth Sciences

Understanding Earthquake Types in Guerrero, Mexico

Plate temperature and water release can explain the occurrence of different types of earthquakes in Guerrera, Mexico. The Kobe University simulation study also showed that the shape of the Cocos Plate is responsible for a gap where earthquakes haven’t occurred for more than a century. The results are important for accurate earthquake prediction models in the region. Where one tectonic plate is pushed down by another, the resulting stress is released in various tectonic events. There are catastrophic megathrust earthquakes,…

CcMCA1inhibition can stall the growth ofCuscuta campestrisparasitic organs. Credit: Osaka Metropolitan University
Agricultural & Forestry Science

Unlocking Cuscuta Campestris: The Secrets of Nature’s Parasite

Suppression of the CcMCA1 gene has potential in halting invasive plant species The parasitic vine Cuscuta campestris grows by latching onto the stems and leaves of plants and inserting organs called haustorium into the host plant tissues to draw nutrients. The haustorium is formed when ion channels in the cell membrane are stimulated during coiling and induce a reaction within the cell. Further, Cuscuta campestris has many types of ion channels, but which ones were linked to the development of…

Reducing the amount of agricultural sprays used by farmers could decrease polluting runoff, while at the same time cutting farmers’ costs and perhaps enhancing productivity. Credit: Courtesy of Kripa Varanasi, et al
Agricultural & Forestry Science

MIT Engineers Create Technology for Pesticide Adhesion

With the new system, farmers could significantly cut their use of pesticides and fertilizers, saving money and reducing runoff. Reducing the amount of agricultural sprays used by farmers — including fertilizers, pesticides and herbicides — could cut down the amount of polluting runoff that ends up in the environment while at the same time reducing farmers’ costs and perhaps even enhancing their productivity. A classic win-win-win. A team of researchers at MIT and a spinoff company they launched has developed…

Projection of the 318 genotypes from WOGBM on the first two principal components (PC) of a PC analysis based on 235 825 SNPs. Credit: Horticulture Research
Agricultural & Forestry Science

Unlocking Olive Tree Flowering Secrets for Climate Adaptation

A recent study has unveiled the genetic blueprint behind flowering time in olive trees, a crucial trait for fruit production that is increasingly under threat from climate change. By analyzing 318 olive genotypes from across the Mediterranean, researchers identified key genetic loci governing flowering time, shedding light on the complex polygenic control of this trait. These findings not only deepen our understanding of olive tree adaptation but also offer new genetic insights to guide breeding programs in developing climate-resilient olive…

A section of South Dakota’s Wind Cave seen under normal white light (left image) transforms into something otherworldly when placed under UV light (right image). Image Credit: Joshua Sebree
Earth Sciences

Fluorescent Caves: Insights Into Life Beyond Earth

Deep below Earth’s surface, rock and mineral formations lay hidden with a secret brilliance. Under a black light, the chemicals fossilized within shine in brilliant hues of pink, blue and green. Scientists are using these fluorescent features to understand how the caves formed and how life is supported in extreme environments, which may reveal how life could persist in faraway places, like Jupiter’s icy moon Europa. The researchers will present their results at the spring meeting of the American Chemical…

Shot of the earth engulfed in flames against a black background. Image by YuriArcursPeopleimages, Envato
Environmental Conservation

Heatwaves Accelerate Global Lake Deoxygenation, Study Shows

Freshwater ecosystems require adequate oxygen levels to sustain aerobic life and maintain healthy biological communities. However, both long-term climate warming and the increasing frequency and intensity of short-term heatwaves are significantly reducing surface dissolved oxygen (DO) levels in lakes worldwide, according to a new study published in Science Advances. Led by Prof. SHI Kun and Prof. ZHANG Yunlin from the Nanjing Institute of Geography and Limnology of the Chinese Academy of Sciences, in collaboration with researchers from the Nanjing University and the UK’s Bangor…

Richard Corsi demonstrates the airflow of a low-cost, DIY air cleaner that can remove indoor pollutants such as smoke particles and respiratory particles. It may also reduce the spread of airborne viruses. Image Credit: Molly Bechtel
Environmental Conservation

DIY Box Filter: Clear Indoor Air Pollutants Effectively

When wildfires threaten people’s communities, human health is impacted far beyond the inferno. Residual smoke distributes on the breeze, infiltrating homes, schools and offices. To help people protect themselves and their families, researchers have developed a low-cost, durable, do-it-yourself (DIY) air cleaner that works as well as more expensive HEPA filters to clear indoor air of pollutants such as smoke and possibly limit the impact of airborne disease spread. Richard Corsi, dean of the University of California, Davis (UC Davis)…

Drew Hopper. Image Credit: Kate A. Simmonds,The University of Melbourne, 500 Yarra Boulevard, Richmond, Victoria, 3121, Australia
Agricultural & Forestry Science

Study Reveals How Disturbance Aids Cool Temperate Rainforests

For decades, scientists believed cool temperate rainforests were fragile ecosystems easily damaged by disturbances like fires or logging. But new research from the University of Melbourne challenges this view, revealing how these ancient forests actually depend on disturbance for their survival. The study focused on Nothofagus moorei, or Antarctic beech, a towering tree that forms the backbone of these ecosystems. The research team analyzed data from silvicultural experiments established in the 1960s across 15 plots in northern New South Wales….

Researchers have generated the most comprehensive genome sequence of the pistachio, allowing plant breeders to create better varieties. Image Credit: (Bárbara Blanco-Ulate / UC Davis)
Agricultural & Forestry Science

Unlocking Pistachio Genetics for Better Crops

New DNA map could lead to more nutritious, sustainable nuts California produces 99% of the nation’s pistachios, generating nearly $3 billion in economic value in the state. But pistachios have been slightly understudied in part because of the lack of a high-quality map of their DNA. University of California, Davis, researchers have now generated the most comprehensive genome sequence of the pistachio, allowing plant breeders to create better — perhaps more nutritious — varieties. They’ve also detailed how pistachio nuts…

Weatland in the Alps. Image Credit: INRAE - Sébastien De Danieli
Earth Sciences

Unlocking Carbon: Soil and Water’s Role in Sequestration

Recent studies have shown that carbon stocks in terrestrial ecosystems are increasing, mitigating around 30% of the CO2 emissions linked to human activities. The overall value of carbon sinks on the earth’s surface is fairly well known—as it can be deduced from the planet’s total carbon balance anthropogenic emissions, the accumulation of carbon in the atmosphere and the ocean sinks—yet, researchers know very little about carbon distribution between the various terrestrial pools: living vegetation—mainly forests—and nonliving carbon pools—soil organic matter,…

A Fossilized feather preserved with the volcanic rock. Image Credit: Edoardo Terranova
Earth Sciences

New Fossil Discovery Sheds Light on Tissue Preservation

An analysis of a 30,000-year-old fossil vulture from Central Italy has revealed for the first time that volcanic rock can preserve microscopic details in feathers – the first ever record of such a preservation. An international team, led by Dr Valentina Rossi (University College Cork, Ireland), discovered a new mode of preservation of soft tissues that can occur when animals are buried in ash-rich volcanic sediments. The new research, published in the scientific journal Geology, reveals that the feathers are…

Environmental Conservation

Marine Animals Tackle Key Ocean Challenges

Sensors attached to animals gather valuable data to track and mitigate the human influence on marine life. The Kobe University review paper emphasizes the importance of integrating data from various sources and advocates for an “Internet of Animals” based on open access and shared standards. Humanity influences marine life through a broad range of activities, spanning from fishing and pollution to noise from boats, construction and mining. To enable a sustainable life together, we need to monitor the influence of…

Hurricane Igor (2010) over Bermuda and the MBL's Oceanic Flux Program research station. Image Credit: NASA MODIS
Earth Sciences

Hurricanes Leave Lasting Impact on Deep Ocean Ecosystems

By David Chandler WOODS HOLE, Mass. – The impact of hurricanes when they travel over land, or when they affect ships or oil-drilling platforms, are quite well understood. But these huge cyclones also stir up the ocean itself, with consequences that are relatively unknown and hard to study. But a unique, subsurface experimental platform moored to the floor of the Sargasso Sea, about 47 miles southeast of Bermuda, is changing that. With collection points at increasing depths along the mooring…

Proportion of current geological resource production exceeding production capacity determined by the regional water availability for the top ten geological resources with the largest volume of water overconsumption. Image Credit: National Institute of Advanced Industrial Science and Technology (AIST)
Earth Sciences

Geological Resources and Regional Water Availability Limits

The study shows that the regional water availability constrains the current and future production of 32 geological resources Geological resources such as critical metals and minerals, essential for the diffusion of technologies such as renewable energy and energy storage towards a decarbonized society, are indispensable for supporting modern life in the form of various products and services. Their demand is expected to increase in the coming years owing to global population as well as economic growth. Thus far, scientists and…

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