Tech & Science International Affairs Donald Trump NASA scientists have warned that the glaciers of eastern Antarctica appear to be melting in a “systematic” manner due to warming global temperatures, despite long being considered to be more stable than their counterparts in the continent's western region. Catherine Walker, a glaciologist at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, presented findings of her research on Monday, just after the Trump administration allied itself with Saudi Arabia, Russia and Kuwait to reject a landmark report on climate change from the United Nations. The document pointed to the dire effects of a global average temperature rise of 1.5 Celsius while also outlining ways to avoid such a catastrophe. As the glaciers of eastern Antarctica melt, this has “the potential to reshape coastlines around the world through sea level rise,” according to NASA. Although scientists have generally believed these … [Read more...] about NASA Warns That Massive East Antartica Glaciers Melting at ‘Systematic’ Rate as Trump Doubles Down on Climate Change Denial
Ice melts at what temperature
Stanford scientists have revealed the presence of water stored within a glacier in Greenland, where the rapidly changing ice sheet is a major contributor to the sea-level rise North America will experience in the next 100 years. This observation - which came out of a new way of looking at existing data - has been a missing component for models aiming to predict how melting glaciers will impact the planet. The group made the discovery looking at data intended to reveal the changing shape of Store Glacier in West Greenland. But graduate student Alexander Kendrick figured out that the same data could measure something much more difficult to observe: its capacity to store water. The resulting study, published in Geophysical Research Letters, presents evidence of glacier meltwater from the surface being stored within damaged, solid ice. While ice melting at the surface has been well documented, little is known about what happens below glacier surfaces, and this observation of liquid water … [Read more...] about Scientists Find Missing Piece in Glacier Melt Predictions
A new research report published in the journal 'Nature,' has revealed that the ice melting in Antarctica has tripled over the past five years. The joint study conducted by a team of 84 scientists, 24 satellite surveys and 44 international organizations have found that Antarctica has lost more than 241 billion tonnes of ice in a year between 2012 and 2017. It should be noted that the global sea levels have increased by 7.6mm since 1992 and out of this, 3mm rise came in the last five years alone which is undoubtedly alarming. Sea level rise likely to continue in the future During the research, scientists used an advanced climate assessment technique called 'Ice Sheet Mass Balance Inter-comparison Exercise' (IMBIE) to find the results about melting Antarctica ice sheets. The findings showed that West Antarctica is most affected by the ice loss, especially its Pine Island and Thwaites Glaciers. As reported by BBC, the study's co-leader, Professor Andrew Shepherd, who is also the director … [Read more...] about Antarctica ice melting tripled in five years; What will happen to humanity if ice vanishes?
NEW YORK -- The rate at which ice is melting on Antarctica has tripled in recent years, according to a study published Wednesday in Nature, a scientific journal. Coastal communities along the U.S. could feel the impact of a continued increase as melting ice adds to sea level rise, say experts. The study shows that from 1992 through 2011, the continent lost ice at a rate of nearly 84 billion tons of ice a year -- accounting for a 0.2 mm per year contribution to sea level rise. Then the melting accelerated significantly, and since 2012 the rate has jumped to more than 241 billion tons a year -- adding 0.6 mm per year to sea level rise. "To see a threefold increase just since 2012 -- that's disturbing to me," said Brenda Ekwurzel, director of climate science for the Climate and Energy Program at the Union of Concerned Scientists. Overall between 1992 and 2017, Antarctica's ice sheet lost 3 trillion tons of ice -- enough water to cover Texas to a depth of nearly 13 feet, … [Read more...] about Rate of Antarctica’s ice melting has tripled since 2012, study finds
It's both solid and liquid, it's 60 times denser than ordinary water ice, and it forms at temperatures almost as hot as the sun's surface. It's superionic ice — and for the first time, scientists have made it in the lab. This high-pressure form of water ice has long been thought to exist in the interiors of Uranus and Neptune. But until now, its existence was only theoretical. "Our work provides experimental evidence for superionic ice and shows that these predictions were not due to artifacts in the simulations, but actually captured the extraordinary behavior of water at those conditions," Marius Millot, a physicist at Lawrence Livermore National Laboratory in California, said in a statement from the laboratory. Millot was the leader author of a new study describing the work. Scientists first predicted the existence of a weird water phase that makes the substance both solid and liquid at the same time 30 years ago. It's also way denser than ordinary water ice because it … [Read more...] about This Ice Is Nearly As Hot As the Sun. Scientists Have Now Made It on Earth.