Dan Joling, Associated Press Updated 9:28 am CDT, Saturday, October 13, 2018 This photo provided by the United States Geological Survey shows a female Pacific walrus resting, Sept. 19, 2013 in Point Lay, Alaska. A lawsuit making its way through federal court in Alaska will decide whether Pacific walruses should be listed as a threatened species, giving them additional protections. Walruses use sea ice for giving birth, nursing and resting between dives for food but the amount of ice over several decades has steadily declined due to climate warming. (Ryan Kingsbery/U.S. Geological Survey via AP) less This photo provided by the United States Geological Survey shows a female Pacific walrus resting, Sept. 19, 2013 in Point Lay, Alaska. A lawsuit making its way through federal court in Alaska will decide ... more Photo: Ryan Kingsbery, AP This July 15, 2012, photo provided by the U.S. Geological Survey shows … [Read more...] about As sea ice melts, agency says harm to walruses not proven
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
0 Have your say Sea ice can capture huge amounts of microscopic plastic pollution, transport it across the Arctic and dump it into the ocean as climate change causes melting, according to a new study. Scientists from the Alfred Wegener Institute (AWI) at Helmholtz Centre for Polar and Marine Research in Germany have discovered the highest concentrations of microplastic ever found in ice cores taken from five regions throughout the Arctic Ocean.Tests showed each litre of sea ice contained up to 12,000 plastic particles, the majority of them microscopically small. A total of 17 types of plastic were present in the samples, with packaging materials such as polyethylene and polypropylene, plus paints, nylon, polyester and cellulose acetate, a component widely used in cigarette filters, being the most common.The researchers said the findings are alarming as the tiny fragments can easily be eaten by the smallest marine creatures and then make their way up the food chain.AWI … [Read more...] about Fears over risk from plastic dropped from polar ice melt
Pine Island glacier. Photo: DPA A study by German scientists released Thursday suggests ice melting in the Antarctic is a top threat to global sea level rise and that the trend could continue for decades or even centuries to come. The researchers focused on the Pine Island Glacier in Antarctica, which has been thinning at an increasingly rapid pace for about the past 20 years, as the waters beneath get warmer along with the rest of the ocean. Based on new geological surveys and advanced dating techniques on rocks that have been exposed by the retreating ice, the experts said in the journal Science that a similar phenomenon occurred thousands of years ago. Some 8,000 years ago, the glacier thinned as fast as it has in recent decades, suggesting it may follow a similar pattern in the future, they reported. "This thinning was sustained for decades to centuries at an average rate of more than 100 centimeters per year, comparable to … [Read more...] about Scientists: Antarctic ice melt ‘top threat’