Changes in the navigability of the Arctic Northeast Passage over the past four decades
Under global warming, the Arctic has warmed almost four times faster than the rest of the globe, and the sea-ice extent and thickness have significantly decreased and thinned over the past four decades......»»
Study suggests statistical "noise" affects perceived evolutionary rates
For decades, researchers have observed that rates of evolution seem to accelerate over short time periods—say five million years versus fifty million years. This broad pattern has suggested that "younger" groups of organisms, in evolutionary terms,.....»»
This now-forgotten ’90s action movie is just as good as Point Break. Here’s why it’s worth watching
Three decades ago, this action movie about maverick skydivers came and went largely unnoticed. In 2024, is it worth another look?.....»»
Decades-long research reveals new understanding of how climate change may impact caches of Arctic soil carbon
Utilizing one of the longest-running ecosystem experiments in the Arctic, a Colorado State University-led team of researchers has developed a better understanding of the interplay among plants, microbes and soil nutrients—findings that offer new in.....»»
New materials and techniques show promise for microelectronics and quantum technologies
As phones and computers shrink in size, our need for data storage and transfer is growing. Electronic devices have been powered by semiconductors for decades, but as the push to miniaturize continues, there's a limit to how small semiconductors can b.....»»
Arctic plant study suggests the rate of climate change threatens to exceed the adaptive capacity of species
A research group at the Finnish Museum of Natural History is investigating the adaptive potential of plant species amid a warming climate. Their recent study investigates the Siberian primrose, a plant species that occurs on the coasts of the Bothnia.....»»
Q&A: Extreme weather is disrupting lives in southern Africa—new policies are needed to keep the peace
Over the past decades, heavy and more frequent rainfall and dry spells in southern Africa have caused loss and damage to agriculture, livestock, the energy sector, food security and nutrition......»»
Scientists highlight overlooked threats to Arctic coasts amid climate change
As climate change rapidly transforms Arctic marine systems, the dramatic image of a polar bear struggling on a melting ice floe has become symbolic of the region's environmental crisis. But scientists argue that coastal Arctic ecosystems are undergoi.....»»
Kia goes commercial with EV fleet gambit in new markets, including Japan
Kia enters the finicky Japan market for the first time in decades with plans to sell its Platform Beyond Vehicle commercial EVs to fleet customers. The Korean carmaker pushes PBVs that stretch its carefully curated, consumer-oriented brand image......»»
Droughts drive Spanish boom in pistachio farming
Two decades ago, Miguel Angel Garcia harvested grapes and grains on his farm in central Spain, like his father and grandfather before him......»»
Franklin expedition captain who died in 1848 was cannibalized by survivors
Scientists matched DNA of living descendent to Capt. James Fitzjames of the HMS Erebus. Enlarge / Oil painting by Belgian marine artist François Etienne Musin depicting tje HMS Erebus trapped in Arctic ice. (credit: Public doma.....»»
Increased sea surface cooling from hurricanes observed along the Southeast Coast of the United States in recent decades
Utilizing satellite observations and ocean reanalysis datasets, researchers have analyzed the change in sea surface cooling induced by hurricanes and the corresponding ocean-atmosphere environment along the Gulf and Southeast coastal regions of the U.....»»
Study tracks traveling population wave in Canada lynx
A new study by researchers at the University of Alaska Fairbanks's Institute of Arctic Biology provides compelling evidence that Canada lynx populations in Interior Alaska experience a "traveling population wave" affecting their reproduction, movemen.....»»
Retracing walrus ivory trade of Viking Age reveals early interactions between Europeans and Indigenous North Americans
By examining ancient walrus DNA, an international research team led by Lund University in Sweden have retraced the walrus ivory trade routes of the Viking Age. They found that Norse Vikings and Arctic Indigenous peoples were probably meeting and trad.....»»
Shedding light on a decades-old protein sorting mystery
Christian de Caestecker, a Ph.D. student in the lab of Ian Macara, Louise B. McGavock Professor and chair of the Department of Cell and Developmental Biology, has proposed and validated a mechanism that addresses a decades-old mystery surrounding epi.....»»
Bulrush once kept NZ"s wetlands and lakes thriving—now it could help restore them
With about 90% of New Zealand's natural wetlands drained or severely damaged during the past decades, we need to understand the role of native plants in the restoration of these important habitats......»»
Climate-smart grazing: Study shows how weather mitigates nitrogen runoff
Livestock production is an important component of U.S. agriculture, with global demand for meat and dairy expected to double in the coming decades. This increase will lead to intensified grazing on U.S. grasslands, potentially exacerbating water qual.....»»
Ice cores show pollution"s impact on Arctic atmosphere
A Dartmouth-led study on ice cores from Alaska and Greenland found that air pollution from the burning of fossil fuels reaches the remote Arctic in amounts large enough to alter its fundamental atmospheric chemistry. The findings illustrate the long.....»»
Arctic sea ice near historic low; Antarctic ice continues decline
Arctic sea ice retreated to near-historic lows in the Northern Hemisphere this summer, likely melting to its minimum extent for the year on Sept.11, 2024, according to researchers at NASA and the National Snow and Ice Data Center (NSIDC). The decline.....»»
New insights into hot carrier solar cells: Study explores hot electron tunneling and collection to enhance efficiency
Hot carrier solar cells, a concept introduced several decades ago, have long been seen as a potential breakthrough in solar energy technology. These cells could surpass the Shockley–Queisser efficiency limit, which is a theoretical maximum efficien.....»»
In the gateway to the Arctic, fat, ice and polar bears are crucial. All three are in trouble.
Searching for polar bears where the Churchill River dumps into Canada's massive Hudson Bay, biologist Geoff York scans a region that's on a low fat, low ice diet because of climate change......»»