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.....»»
Antarctica vulnerable to invasive species hitching rides on plastic and organic debris, oceanographic model shows
Antarctica's unique ecosystems could be threatened by the arrival of non-native marine species and marine pollution from Southern Hemisphere landmasses, new oceanographic modeling shows......»»
Study tracks decades of extreme heat, cold in Upper Midwest
Researchers analyzed meteorological data from nine Upper Midwest states from 1979–2021, tracking trends in extreme heat and cold over every 4-kilometer square of that territory. They found striking regional differences in the extremes. Many parts o.....»»
First visualization of valence electrons reveals fundamental nature of chemical bonding
The distribution of outermost shell electrons, known as valence electrons, of organic molecules was experimentally observed for the first time by a team led by Nagoya University in Japan. As the interactions between atoms are governed by the valence.....»»
Twisted molecular wires exhibit high single-molecule conductance
From the high-voltage wires that carry electricity over long distances, to the tungsten filaments in our incandescent lights, we may have become accustomed to thinking that electrical conductors are always made of metal. But for decades, scientists h.....»»
Research shows reducing future global flooding hinges on cutting greenhouse gas emissions
Pioneering research forecasts that worldwide flooding is likely to be significantly worse in future decades if countries fail to meet official pledges to cut carbon emissions......»»
Cleanup hopes for neighbors of Mexico"s "toilet bowl" wastewater dam
On the banks of a wastewater dam in central Mexico, under a dense cloud of mosquitoes, Yury Uribe is finally seeing hope after spending decades in "environmental hell.".....»»
How does organic farming benefit honey bees?
Organic farming and flower strips promote the health of honey bees. In their vicinity, colonies grow stronger and are generally healthier. This is most likely because the insects have a diverse and continuous food supply there and are less exposed to.....»»
Pore structure characteristics found to influence carbon mineralization under conservation tillage
Soil aggregates are the basic units of soil structure and serve as a reservoir for soil carbon, playing a crucial role in the carbon cycle of ecosystems. The pore characteristics of soil aggregates influence the mineralization of soil organic carbon......»»
Advanced materials could provide more durable metals for fusion power reactors
For many decades, nuclear fusion power has been viewed as the ultimate energy source. A fusion power plant could generate carbon-free energy at a scale needed to address climate change. And it could be fueled by deuterium recovered from an essentiall.....»»
Small molecule organic eutectics show potential for replacing plastics
Plastics have long been a mainstay in modern manufacturing, but their environmental impact has increased demand for eco-friendly alternatives. Researchers at The University of Warwick have made significant progress in the search for sustainable alter.....»»
How a mix of old and new techniques produced a superior maize harvest in a dry part of South Africa
New research into rural small-scale farms in South Africa's North West province has found that climate-smart farming techniques lead to a better maize yield, a more regular supply of food for the farmers, and a wider variety of crops......»»
Geophysicists find link between seismic waves called PKP precursors and strange anomalies in Earth"s mantle
For the decades since their discovery, seismic signals known as PKP precursors have challenged scientists. Regions of Earth's lower mantle scatter incoming seismic waves, which return to the surface as PKP waves at differing speeds......»»
New research shows agricultural impacts on soil microbiome and fungal communities
New research from Smithsonian's Bird Friendly Coffee program highlights a type of biodiversity that often gets overlooked: soil bacteria and fungal communities. For over twenty years, Smithsonian research has shown that coffee farms with shade trees.....»»
New analytical tools identify distinct components of dissolved organic matter within the ocean water column
Large quantities of carbon are stored across the environment as naturally-occurring dissolved organic matter. In the ocean, this organic carbon has an average age of thousands of years, but seasonal fluctuations in dissolved organic matter concentrat.....»»
Why the Fiat 500e could be your ideal second EV
The phenomenally efficient Fiat 500e is enjoyable to drive. Enlarge / The Fiat 500e Inspired by Beauty. (credit: BradleyWarren Photography) Over two decades of parenting has left me with a healthy appreciation for SUVs a.....»»
Facing “financial crisis,” Russia on pace for lowest launch total in 6 decades
"This forces us to build a new economy in severe conditions." Enlarge / A Soyuz 2.1b rocket booster with a Frigate upper stage block, the Meteor-M 2-1 meteorological satellite, and 18 small satellites launched from the Vostochny.....»»
Why do plants wiggle? New study provides answers
In a new study, physicists from the United States and Israel may have gotten to the bottom of a quirky behavior of growing plants—and a mystery that intrigued Charles Darwin himself during the later decades of his life......»»
ISPs worry that killing FCC net neutrality rules will come back to haunt them
Telcos want it both ways, urging SCOTUS to block federal rules and state laws. Enlarge (credit: Getty Images | Matt Anderson Photography) ISPs asked the US Supreme Court to strike down a New York law that requires broadb.....»»
New analysis of Webb data measures universe expansion rate, finds there may not be a "Hubble tension"
We know many things about our universe, but astronomers are still debating exactly how fast it is expanding. In fact, over the past two decades, two major ways to measure this number—known as the "Hubble constant" —have come up with different ans.....»»
A hopper could explore more than 150 km of Triton"s surface in two years
Neptune's largest moon, Triton, is one of the most biologically interesting places in the solar system. Despite being hard to reach, it appears to have active volcanoes, a thin atmosphere, and even some organic molecules called tholins on its surface.....»»