Earth Sciences Archives - Page 9 of 15

Thawing permafrost becomes 25 to 100 times more permeable, experiments find

Experiments by University of Leeds researchers, published in Earth’s Future, have shown that thawing of permafrost makes it between 25 and 100 times more permeable, allowing more climate change forcing gases to escape.This post was […]

Recovery from sudden permafrost collapse ranges from 10 years to a century, study suggests

Phys.org

Some Arctic regions regain their “greenness” within a decade of a sudden permafrost collapse, while others can take a century or more to recover, researchers report in a new study. The difference is directly related […]

Climate change is altering Saharan dust—and Europe is downwind

Phys.org

In recent years, residents of Spain, France and the UK have looked up to see an eerie sight: deep orange sunrises and skies thick with a yellowish haze. These hazy skies often deposit “blood rain,” […]

How internal waves transport energy thousands of miles across the ocean

Phys.org

Both winds and tides inject energy into the ocean. Much of that energy is then transported up to thousands of miles by internal waves: large-scale underwater waves that can travel between ocean basins. Quantifying the […]

North Sea wind farms may be reshaping sediment flows by 1.5 million tons a year

Phys.org

Offshore wind farms are an important pillar of the European Union’s strategy for renewable energy—by 2050, the EU aims to increase capacity in the North Sea more than tenfold. A new study by the Helmholtz-Zentrum […]

Alaska analysis shows continued loss of Arctic landfast sea ice

Phys.org

Sea ice is sticking to Alaska’s northern coast for less time each year, according to 27 years of data analyzed by University of Alaska Fairbanks scientists. Such landfast ice, which stays attached to the shoreline […]

Study explains Antarctic sea ice growth and sudden decline

Phys.org

A new Stanford University study has helped solve a mystery about dramatic swings in sea ice extent around Antarctica.This post was originally published on this site

Trade-offs between commercial and public satellite data in water mapping accuracy revealed

Phys.org

A new study finds that commercial satellite imagery data often outperforms public data sets when identifying surface water, but that public data sets may be better at detecting water hidden by forest cover. Satellite imagery […]

Major volcanic eruptions might be driven by gas dissolving back into magma

Phys.org

Understanding what triggers large volcanic eruptions is crucial for hazard assessment, but the exact mechanism driving these eruptions is still poorly understood. The prevailing theory is that volatile exsolution—gas coming out of magma—is a main […]

Cyclone Narelle is now larger and ‘more severe’ as it crosses the Western Australian coast

Phys.org

Severe Tropical Cyclone Narelle continues to amaze us with its long journey across northern Australia. This cyclone began life near the Solomon Islands on March 16, when moist air rose rapidly and created a low-pressure […]

Early deliveries can lower product ratings by 0.2 stars, analysis of 11 million reviews finds

When it comes to package delivery, early isn’t always better. A new study published in Production and Operations Management by researchers at the University of Iowa’s Tippie College of Business finds that when a package [...]
Examining threats to monetary sovereignty in the digital era

The world is undergoing a fundamental change to how money works, and New Zealand should choose its response wisely, an Otago researcher cautions. New University of Otago—Ōtākou Whakaihu Waka research co-authored by Dr. Murat Ungor [...]
What we lose when AI does our shopping

Americans spend a remarkable amount of time shopping—more than on education, volunteering or even talking on the phone. But the way they shop is shifting dramatically, as major platforms and retailers are racing to automate [...]