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 …
As sea levels rise, threatening cities from New York to Shanghai, the economic damage will increase even faster, scientists said on Monday. Extreme floods whipped up by storms will become ever more costly for cities as ocean levels edge up around the world's coasts in coming decades, they wrote in …
The first platform dedicated to measuring the ozone layer has been installed in the Chilean Antarctic, to study the impacts of the hole in the ozone layer on climate change in the region, it was announced Wednesday. Raul Cordero, the project's lead researcher at the University of Santiago, stated in …
The contribution of the Greenland and West Antarctic ice sheets to sea level has increased in recent decades, largely owing to the thinning and retreat of outlet glaciers and ice streams. This dynamic loss is a serious concern, with some modelling studies suggesting that the collapse of a major ice …
Scientists are coming to grips with how weather in Antarctica is influencing climate as far away as the tropics. For example, researchers at Ohio State's Byrd Polar Research Center have discovered an influence of atmospheric circulation in the Wilkes Land and Ross Sea regions of Antarctica on precipitation from the …
A reconstruction of changes in ocean oxygenation throughout the last glacial cycle shows that respired carbon was removed from the deep Southern Ocean during deglaciation and Antarctic warm events, consistent with a prominent role of reduced iron fertilization and enhanced ocean ventilation, modifying atmospheric carbon dioxide concentrations over the past …
The floating ice shelves along the seaboard of the Antarctic ice sheet restrain the outflow of upstream grounded ice1, 2. Removal of these ice shelves, as shown by past ice-shelf recession and break-up, accelerates the outflow3, 4, which adds to sea-level rise. A key question in predicting future outflow is …
Loss of ice in Antarctica caused by a warming ocean may result in rising global sea levels by three metres, warns a recent research. Scientists from the University of Edinburgh in Scotland were able to gauge how levels of ice - that existed continuously for at least 1.4 million years …
Melting ice sheets in Antarctica caused by ocean warming could potentially increase global sea levels by three meters. In the study, a team of scientists examined a number of landscapes to determine how warmer temperatures affect the West Antarctic ice sheet. "Our findings narrow the margin of uncertainty around the …
Move over, Grand Canyon! The world's largest canyon - over 1,000 kilometre long and up to one kilometre deep - may lie under the Antarctic ice sheet, scientists including those from India have claimed. The canyon system is made up of a chain of winding and linear features buried under …
The timing and duration of historical climate changes have been debated by scientists for years. Ice core records, though, can offer a way for scientists to study glacial-interglacial cycles. However, the precise dating of the core is key to understanding the timing of these cycles. In this latest study, the …
Recent work has suggested that sections of the West Antarctic ice sheet are already rapidly retreating, raising concerns about increased sea-level rise; now, an ice-sheet model is used to simulate the mass loss from the entire Antarctic ice sheet to 2200, suggesting that it could contribute up to 30 cm …
Retreating glaciers over the last 14,000 years caused a population explosion among Adelie penguins – a trend that could continue as Antarctic ice shrinks further thanks to global warming. Scientists say the current environmental conditions are far more favourable to the species than colder conditions seen at the end of …
Major, long-term environmental changes are projected in the Southern Ocean and these are likely to have impacts for marine predators such as the Adélie penguin (Pygoscelis adeliae). Decadal monitoring studies have provided insight into the short-term environmental sensitivities of Adélie penguin populations, particularly to sea ice changes. However, given the …
As glaciers melt and temperatures warm, more is at stake than the loss of ice. Scientists have found that melting glaciers are causing a loss of species diversity among benthos in the coastal waters off the Antarctic Peninsula. Over the past 50 years, temperatures have risen nearly five times as …
NEW DELHI: A startling new report by Nasa scientists suggests that the Antarctic ice sheet may actually be expanding, growing every year, despite a warming globe! This is in direct conflict to the prevailing notions, which suggested that the ice was melting fast as global warming and climate change was …
MIAMI: Melting ice in West Antarctica is a major concern for global sea levels, and a key area may already be unstable enough to unleash three meters of ocean rise, scientists said Monday. The study follows research out last year, led by NASA glaciologist Eric Rignot, warning that ice in …
A key area of ice in west Antarctica may already be unstable enough to cause global sea levels to rise by 3m, scientists said on Monday. The study follows research published last year, led by Nasa glaciologist Eric Rignot, warning that ice in the Antarctic had gone into a state …
The U.N.'s weather and climate agency said on Thursday there was no cause for alarm about a record-size hole this month in the ozone layer, that shields life on earth from the sun, as it should shrink again. The ozone hole that appears over Antarctica fluctuates in size, normally reaching …
Earlier this year, we learned some worrisome climate news. Although Antarctic scientists have been most concerned about loss of ice in the western part of Antarctica, a study in Nature Geoscience suggested a vulnerability in the much larger ice sheet of East Antarctica, as well. East Antarctica’s enormous Totten Glacier, …
A jump in global average temperatures of 1.5 degrees Celsius to 2 degrees Celsius will see the collapse of Antarctic ice shelves and lead to hundreds and even thousands of years of sea-level rise, a new research has warned. An international team led by Dr Nicholas Golledge, who holds a …
