Ghosts of past pesticide use can haunt organic farms for decades
Although the use of pesticides in agriculture is increasing, some farms have transitioned to organic practices and avoid applying them. But it's uncertain whether chemicals applied to land decades ago can continue to influence the soil's health after.....»»
New tool to help decision makers navigate possible futures of the Colorado River
The Colorado River is a vital source of water in the Western United States, providing drinking water for homes and irrigation for farms in seven states, but the basin is under increasing pressure from climate change and drought. A new computational t.....»»
Vaporizing plastics recycles them into nothing but gas
Polypropylene and polyethylene can be broken down simultaneously. Enlarge (credit: Derek Berwin) Our planet is choking on plastics. Some of the worst offenders, which can take decades to degrade in landfills, are polypro.....»»
China dairy farms swim in milk as fewer babies, slow economy cut demand
China dairy farms swim in milk as fewer babies, slow economy cut demand.....»»
Norway limits wild salmon fishing as stocks hit new lows
Norwegian authorities on Friday rolled out fresh restrictions on wild salmon fishing for 2025 after stocks hit record lows in recent years, with scientists blaming fish farms......»»
Researchers achieve aluminum molecular ring-based rotaxane and polyrotaxane
Rotaxanes have garnered interest for their unique structures consisting of mechanically interlocked axles and macrocycles. Numerous organic macrocycles have been employed to construct rotaxanes, including crown ether, cyclobis(paraquat-p-phenylene),.....»»
Sea surface micro layer: Researchers study boundary between the ocean and the air
The boundary between the ocean and the atmosphere, where the air and sea interact, is known as the sea surface microlayer. Understanding how nutrients, pollutants and organic matter are exchanged between the air and the sea is also vital for better u.....»»
Mysterious Pacific Ocean sounds identified as a type of whale—a new AI app helps track them
A team of oceanographers and marine biologists from the NOAA Pacific Islands Fisheries Science Center and Oregon State University has identified a mysterious noise heard in the Pacific Ocean for two decades as the sounds of Bryde's whales......»»
Groundbreaking experiment may let us ‘see’ gravity for the first time ever
Scientists have spent decades trying to understand how gravity operates at its most basic scale. However, no theory has come close to fully explaining it. … The post Groundbreaking experiment may let us ‘see’ gravity for the first time ever.....»»
Real-time Linux is officially part of the kernel after decades of debate
Now you can run your space laser or audio production without specialty patches. Enlarge / Cutting metal with lasers is hard, but even harder when you don't know the worst-case timings of your code. (credit: Getty Images).....»»
Droughts likely to be even longer in the future due to climate change
Major climate reports may be underselling the risks of rising emissions. (credit: USGS) Droughts in the coming decades could be longer than projected by current climate models, a new study published Wednesday in Nature w.....»»
Visible-light-antenna ligand enhances samarium-catalyzed reactions
Samarium (Sm), a rare earth metal, is important to organic chemists because of the ability of its divalent compounds to efficiently perform single-electron transfer reductions......»»
Detailed model suggests organic matter on Mars was formed from atmospheric formaldehyde
Although Mars is currently a cold, dry planet, geological evidence suggests that liquid water existed there around 3 to 4 billion years ago. Where there is water, there is usually life. In their quest to answer the burning question about life on Mars.....»»
Microplastics: Meant to last, just not forever and not in our bodies
Megan Hill is an assistant professor of chemistry and leader of the Hill Lab in Colorado State University's College of Natural Sciences. Her research leverages organic chemistry to design advanced polymeric materials for applications in sustainabilit.....»»
Harnessing nature"s rhythm: Piezocatalysis for organic pollutant degradation
With the rapid growth of industrial and agricultural activities, water bodies are increasingly contaminated with harmful organic pollutants such as dyes, antibiotics, and bisphenol A. Traditional methods like adsorption, chemical treatments, and biol.....»»
Groundwater cleanup boost: Tailoring 3D media for DNAPL contaminant removal
Groundwater contamination by organic pollutants, such as non-aqueous phase liquid (DNAPL), poses significant environmental and health risks. These contaminants, often released from industrial activities, can persist in the subsurface environment, for.....»»
Why holding kids back fails, and what to do about it
For decades, schools have allowed children to advance to the next grade even when they're not reading at grade level. But more and more states are adopting policies to hold students back if they fail standardized tests in reading......»»
Newly developed OLED could enable compact, lightweight night vision
A new type of OLED (organic light emitting diode) could replace bulky night vision goggles with lightweight glasses, making them cheaper and more practical for prolonged use, according to University of Michigan researchers......»»
30 years ago, this unexpected sci-fi hit surprised everyone. Is it still worth watching in 2024?
Three decades ago, moviegoers went on a time travel adventure with this hit sci-fi film. But does it hold up all these years later?.....»»
America"s dairy farms are disappearing, down 95% since the 1970s—milk price rules are one reason why
Milton Orr looked across the rolling hills in northeast Tennessee. "I remember when we had over 1,000 dairy farms in this county. Now we have less than 40," Orr, an agriculture adviser for Greene County, Tennessee, told me with a tinge of sadness......»»
Disappearing scientists: Attrition and retention patterns of 2.1 million scientists in 38 OECD countries
Research has been showing that women scientists continue to disappear from science at a significantly higher rate and in higher percentages than men. This is what social scientists have thought for decades—but this is no longer the case today, acco.....»»