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 reveals crucial role of mixing Atlantic and Arctic waters in global ocean circulation
A new study sheds light on the vital role that the mixing of Atlantic and Arctic waters plays in sustaining the Atlantic Meridional Overturning Circulation (AMOC), which is crucial for regulating Earth's climate......»»
Arctic heat waves linked to sea ice loss, new study reveals
Amid global warming, heat waves are striking even the Arctic, a region once considered immune to such extreme weather events. Recent research reveals that these heat waves, particularly in the Barents-Kara Sea (BKS) during the boreal autumn, are not.....»»
Geographic differences in US homicide rates have decreased since the 1970s, study finds
A new study finds that, counter to expectations, geographic disparities in rates of homicides in the US have decreased in recent decades. Richard Boylan of Rice University in Houston, Texas, US, presents these findings in the open-access journal PLOS.....»»
NASA study tallies carbon emissions from massive Canadian fires
Stoked by Canada's warmest and driest conditions in decades, extreme forest fires in 2023 released about 640 million metric tons of carbon, NASA scientists have found. That's comparable in magnitude to the annual fossil fuel emissions of a large indu.....»»
DNA replication in early embryos differs from previous assumptions, study shows
A new discovery by researchers at the RIKEN Center for Biosystems Dynamics (BDR) in Japan upends decades of assumptions regarding DNA replication. Led by Ichiro Hiratani and colleagues, the experiments published August 28 in Nature show that DNA repl.....»»
How a survey of over 2,000 women in the 1920s changed the way Americans thought about female sexuality
American women still have fewer orgasms than men, according to new research that suggests that decades after the sexual revolution, the "orgasm gap" is still very much in effect......»»
Nonprofits with investment income slower to recover from economic downturns, study shows
A recent study evaluates three decades of financial data from nonprofit organizations and finds that while the sector tends to bounce back quickly after periods of economic recession, some organizations bounce back more quickly than others. Specifica.....»»
This bird species was extinct in Europe. Now it"s back, and humans must help it migrate for winter
How do you teach a bird how, and where, to fly? The distinctive Northern Bald Ibis, hunted essentially to extinction by the 17th century, was revived by breeding and rewilding efforts over the last two decades. But the birds—known for their distinc.....»»
US water reservoirs are shrinking and becoming less reliable, new study finds
Major water reservoirs across the continental United States are experiencing longer, more severe, and more variable periods of low storage than several decades ago, a new study reports. The problems are most severe in the western and central United S.....»»
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.....»»
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.".....»»
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.....»»
How researchers determined that Stonehenge"s giant Altar Stone came all the way from northeast Scotland
No one is certain why Stonehenge was built. This world-famous monument on Salisbury Plain in Wiltshire is thought to commemorate the dead, and is aligned with movements of the sun and moon......»»
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......»»
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.....»»
"Mercury bomb" threatens millions as Arctic temperatures rise, study warns
The Yukon River flows west across Alaska toward the Bering Sea, eroding Arctic permafrost along its banks and transporting sediment downstream. Within that sediment lurks a toxic stowaway: mercury......»»
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......»»