Arctic sea ice loss leads to more frequent strong El Niño events

−1) on the pressure gradient between the Aleutian Low and Siberian High between ICEp2 and ICEhist. Statistically significant (>95% confidence level) values ​​are marked by gray dots and black vectors. Credit: Nature Communications (2022). DOI: 10.1038/s41467-022-32705-2″ width=”800″ height=”530″/> Changes in winter sea-level pressure (SLP), and sea-surface temperature (SST) and near-surface winds induced by the seasonally … Read more

Record of Antarctic ice sheet response to climate cycles found in rock samples

UCSC researchers analyzed two rock samples collected in Eastern Antarctica in which alternating layers of calcite and opal reflect cyclic changes in the subglacial environment. Sample MA113 is 9 centimeters thick and comes from Mount Achernar Moraine on the side of Law Glacier. Credit: Gavin Piccione By analyzing unusual rock samples collected years ago in … Read more

Diamond rains could fall through the interior of ice giant planets

An exotic form of precipitation called ‘diamond rain’ — long thought to occur deep within ice giant planets — could be more common than previously thought. A team of researchers have experimented with material similar to that found within ice giants such as the solar system planets Neptune and Uranus, discovering that the presence of … Read more

Profiling meltwater distributions to strengthen sea ice predictions

Photos a) and b) show the observation equipment used in this study. They were taken from the ice and underwater, respectively. Photo c) shows the arrangement of the observation stations, taken from a helicopter looking downward. Here, the white, light blue, and dark blue areas are sea ice (or snow), melt ponds, and leads (areas … Read more

How the Ice Ages spurred the evolution of New Zealand’s weird and wiry native plants

Credit: Shutterstock/Sebastian Schuster Recent genetic research has shed new light on the long-running debate about the evolutionary origins of some of New Zealand’s quirkiest plants. More than one in ten native trees and shrubs have small leaves spaced far apart on wiry interlaced branches, often growing in a zig-zag pattern. Once the preserved of botanists, … Read more

Antarctica’s ice shelves could be melting faster than we thought

Prior to developing this model, the team has traveled to Antarctica to make measurements of temperature and salinity of the water and ice. Their new model shows that an often-overlooked narrow ocean current along the Antarctic coast can play a large role in how heat gets trapped beneath the ice shelves, melting them from below. … Read more

The world’s biggest ice sheet is more vulnerable to global warming than scientists previously thought

Credit: titoOnz / shutterstock The eastern two thirds of Antarctica is covered by an ice sheet so large that if it melted the sea would rise by 52 meters. Most scientists had once thought this ice sheet was largely invulnerable to climate change, but not any more. And our new research, published in Naturereveals the … Read more

In simulation of how water freezes, artificial intelligence breaks the ice

Researchers at Princeton University combined artificial intelligence and quantum mechanics to simulate what happens at the molecular level when water freezes. The result is the most complete yet simulation of the first steps in ice “nucleation,” a process important for climate and weather modeling. Credit: Pablo Piaggi, Princeton University A team based at Princeton University … Read more

Legacy of ancient ice ages shapes how seagrasses respond to environmental threats today

Eelgrass from the Finnish Archipelago Sea. Eelgrasses migrated to the Atlantic from the Pacific hundreds of millennia ago, and that ancient migration left marks on their DNA that still shape them today. Credit: Christoffer Boström, Åbo Akademi University Deep evolution casts a longer shadow than previously thought, scientists report in a new paper published the … Read more