Antarctica

State of the climate in 2022: special supplement to the Bulletin of the American Meteorological Society

This is the 33rd issuance of the annual assessment now known as State of the Climate, published in the Bulletin since 1996. As a supplement to the Bulletin, its foremost function is to document the status and trajectory of many components of the climate system. However, as a series, the …

Pacific Islands Seek Low-Cost Storm Protection

Pacific islands are trying low-cost ways to protect crops and coasts from cyclones that are a bigger threat -- for now -- than rising sea levels that could wipe low-lying nations off the map. Pacific island delegates at June 1-12 talks in Bonn working on a new U.N. climate treaty …

The Gamburtsev mountains and the origin and early evolution of the Antarctic Ice Sheet

The nature of initial glaciation on Antarctica about 34 million years ago is a mystery. Results from an intensive radar survey now show that the Gamburtsev mountains at Dome A, at the centre of the present ice sheet, were initially incised by rivers and then subsequently overdeepened by ice movement; …

Penguin poo stains expose emperors' icy homes

population." Experts studying images taken from space were initially baffled by reddish-brown splodges on the ice. "It turned out they were the feces, guano stains, of the emperors," Trathan said. "There's a really good contrast between the dark poo stains and the ice." Scientists widened the search for the tell-tale …

17m Bangladeshis to be displaced: Sea level rise due to meltdown of West Antarctic ice

More than 17 million people in Bangladesh would be displaced by a sea level rise of 1.5 metres, warned Jonathan Bamber, a professor at Bristol University in England, disclosing a study report which found that a collapse of the ice sheet of West Antarctica would push up world sea levels …

Shrinking Antarctic ice threat to US cities

Washington, May 15: If the West Antarctic Ice Sheet collapses due to global warming, it would directly threaten New York, Washington and San Francisco as sea levels near US coasts would rise by 25 per cent more than the global average, according to a new study. Antarctica holds about nine …

Reassessment of the potential sea-level rise from a collapse of the West Antarctic Ice Sheet

Theory has suggested that the West Antarctic Ice Sheet may be inherently unstable. Recent observations lend weight to this hypothesis. This article reassess the potential contribution to eustatic and regional sea level from a rapid collapse of the ice sheet and find that previous assessments have substantially overestimated its likely …

Ice sheet stability and sea level

Volume changes in the Antarctic Ice Sheet are poorly understood, despite the importance of the ice sheet to sea-level and climate variability. Over both millennial and shorter time scales, net water influx to the ice sheet (mainly snow accumulation) nearly balances water loss through ice calving and basal ice shelf …

Study Halves Prediction of Rising Seas

A new analysis halves longstanding projections of how much sea levels could rise if Antarctica

A sinking feeling

Sea levels are rising twice as fast as had been thought SCIENCE and politics are inextricably linked. At a scientific conference on climate change held this week in Copenhagen, four environmental experts announced that sea levels appear to be rising almost twice as rapidly as had been forecast by the …

Principal component and spectral analyses of palaeo-climate time series

Mathematical modelling and time series analysis techniques are important tools for extracting information from complex geotime series. These techniques also facilitate a fair degree of prediction, which is one of the prime goals of science. The data analysis strategy for such a purpose mainly involves spectral analysis and pattern classification. …

Climate change and sea level rise: a review of the scientific evidence

Sea-level rise (SLR) due to climate change is a serious global threat: The scientific evidence is now overwhelming. The rate of global sea level rise was faster from 1993 to 2003, about 3.1 mm per year, as compared to the average rate of 1.8 mm per year from 1961 to …

Climate change and sea level rise: a review of the scientific evidence

Sea-level rise (SLR) due to climate change is a serious global threat: The scientific evidence is now overwhelming. The rate of global sea level rise was faster from 1993 to 2003, about 3.1 mm per year, as compared to the average rate of 1.8 mm per year from 1961 to …

NYC-sized ice shelf collapses in Antarctica

Tromsoe (Norway): An area of an Antarctic ice shelf almost the size of New York City has broken into icebergs this month after the collapse of an ice bridge widely blamed on global warming, a scientist said.

Science & Technology - Briefs

health sciences Mussels in surgery Natural adhesive proteins secreted by marine mussels may replace sutures in surgery. Sutures, made from sheep intestines, are used to repair tissues in a surgery. Sutures can cause infection and inflammation. Synthetic adhesives are also used to repair tissues but they are not biodegradable and …

New York City-Sized Ice Collapses Off Antarctica

An area of an Antarctic ice shelf almost the size of New York City has broken into icebergs this month after the collapse of an ice bridge widely blamed on global warming, a scientist said Tuesday. "The northern ice front of the Wilkins Ice Shelf has become unstable and the …

Antarctic - NYC- sized ice slab breaks off

An area of an Antarctic ice shelf almost the size of New York City has broken into icebergs in April after the collapse of an ice bridge widely blamed on global warming, a scientist said on Tuesday.

Why Antarctic ice is growing despite global warming

The southern ozone hole has changed weather patterns around Antarctica and cooled the air above the east part of the continent, according to new research.

Ice Study Has Good And Bad News For Planet: Scientist

A study of Greenland's icesheet has revealed that a vast store of planet-warming methane appears to be more stable than thought, easing fears of a rapid rise in temperatures, a scientist said on Friday. Methane is about 25 times more powerful at trapping heat in the atmosphere than carbon dioxide …

Growing Antarctic Sea Ice Linked To Damaged Ozone

An expansion of sea ice around Antarctica is linked to a hole in the ozone layer high in the atmosphere, according to a study on Tuesday that helps clear up a mystery about global warming. The findings, by scientists at the British Antarctic Survey (BAS) and the U.S. space agency …

How Great Is The Threat From Melting Ice Sheets? (Interview)

The UN Climate Panel says seas could rise by 18-59 cms (7-24 inches) by 2100, without taking account the possible acceleration of a melt of ice sheets in Antarctica or Greenland. Even a small thaw of Antarctica and Greenland would affect sea levels since together they lock up enough ice …

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