Member Highlight: Study Reveals New Antarctic Process Contributing To Sea Level Rise And Climate Change

2018-04-20T17:04:13+00:00 April 20, 2018|

(Credit: Alessandro Silvano) A new IMAS-led study has revealed a previously undocumented process where melting glacial ice sheets change the ocean in a way that further accelerates the rate of ice melt and sea level rise. (From Phys.org) -- Led by IMAS PhD student Alessandro Silvano and published in the journal Science Advances, the [...]

Member Highlight: Ice Cores Show Greenland’s Melting Is Unprecedented In At Least Four Centuries

2018-04-02T11:35:51+00:00 March 30, 2018|

(Credit: Forrest McCarthy) Scientists who crossed western Greenland with a fleet of snowmobiles, pulling up long cylinders of ice at camps a little more than a mile above sea level, have found evidence that the vast sheet of ice is melting faster than at any time in the past 450 years at least — and possibly much longer than that. [...]

Member Highlight: Threatened Sea Turtles In Hawaii Losing Ground To Rising Oceans

2018-01-02T13:47:29+00:00 December 18, 2017|

(Credit: Thomas Shahan) Protecting coastal homes and businesses from the crashing waves of the sea may eliminate beach habitat for the threatened Hawaiian green sea turtle. (From EOS.org/ By Alex Fox)-- Known as honu by Hawaiians, the Hawaiian green sea turtle (Chelonia mydas) is classified as threatened under the U.S. Endangered Species Act [...]

Watchdog: Pentagon Taking Few Steps To Prepare Overseas Bases For Climate Change

2017-12-15T13:16:38+00:00 December 15, 2017|

The Pentagon has taken few steps to prepare its overseas installations for climate change, a government watchdog said Wednesday. (From The Hill/ By Rebecca Kheel) -- “While the military services have begun to integrate climate change adaptation into installations’ plans and project designs, this integration has been limited,” the Government Accountability Office (GAO) said in a report [...]

Extreme Fieldwork, Climate Modeling Yields New Insight Into Predicting Greenland’s Melt

2017-12-12T12:37:33+00:00 December 12, 2017|

Greenland (Credit: Matthew Cooper) A new UCLA-led study reinforces the importance of collaboration in assessing the effects of climate change. The research, published Dec. 5 in the journal Proceedings of the National Academy of Sciences, offers new insights about previously unknown factors affecting Greenland's melting ice sheet, and it could ultimately help scientists [...]

Member Highlight: How Wind Might Nudge A Sleeping Giant In Antarctica

2017-11-07T14:15:52+00:00 November 7, 2017|

(Click to enlarge) Research plane over Totten Glacier. (Credit: Image courtesy of Imperial College London) Scientists believe they’ve identified a key process affecting the melting of an enormous glacier in East Antarctica, bigger than the state of California. And the effects may only worsen with future climate change. (From Scientific American / by [...]

A Major New U.S. Report Affirms: Climate Change Is Getting Worse

2017-11-03T14:10:42+00:00 November 3, 2017|

Climate change is real. It’s caused by greenhouse-gas pollution released by human industrial activity. Its consequences can already be felt across every region and coastline of the United States—and, unless we stop emitting greenhouse gases soon, those consequences will almost certainly get worse. Those are the headline findings of the Climate Science Special Report, a sweeping and more than 800-page examination of the evidence. The report was published Friday by four agencies of the U.S. government and academics from across the country.

Study Finds East Coast Of America Is Sinking Into The Atlantic Ocean

2017-09-15T10:27:18+00:00 September 15, 2017|

The east coast of the United States is slowly but steadily sinking into the sea. This is the result of a recent study which took a variety of factors into account when determining the continuous sinking of the eastern seaboard. This will result in more frequent and severe flooding events in the future as the sea encroaches upon coastal communities and homes. This is all the more relevant as Hurricane Irma inundates the southeast coastline with rising storm surge.

Sea Level Rise Is Speeding Up In Parts Of The Southeastern U.s.

2017-08-15T09:31:13+00:00 August 15, 2017|

Sea-level rise isn’t just happening; it’s accelerating. And some areas of the United States—like Florida—are seeing “hot spots” where the ocean can creep up six times faster than average. Those are the findings of two new studies published yesterday, which have potentially troubling implications for urban planners trying to address sea-level rise. They also help explain why residents of Florida and North Carolina have seen sharp increases in coastal flooding in recent years.

Ancient Italian Fossils Reveal Risk Of Parasitic Infections Due To Climate Change

2017-08-02T16:25:44+00:00 August 2, 2017|

In 2014, a team of researchers led by a paleobiologist from the University of Missouri found that clams from the Holocene Epoch (that began 11,700 years ago) contained clues about how sea level rise due to climate change could foreshadow a rise in parasitic trematodes, or flatworms. The team cautioned that the rise could lead to outbreaks in human infections if left unchecked. Now, an international team from Mizzou and the Universities of Bologna and Florida has found that rising seas could be detrimental to human health on a much shorter time scale. Findings from their study in northern Italy suggest that parasitic infections could increase in the next century, if history repeats itself.

Forget That Big Iceberg–A Smaller One In The Arctic Is More Troubling

2017-08-02T09:14:09+00:00 August 2, 2017|

The world saw headlines about one of the largest icebergs ever calved a few weeks ago. But a smaller one on the other end of the globe might have bigger consequences. The chunk of ice, which broke free in the Arctic last week, is more worrisome to climate scientists who are watching one of Earth's largest glaciers shed pieces in a way that stands to raise sea levels.

Seawalls: Ecological Effects Of Coastal Armoring In Soft Sediment Environments

2017-07-26T15:38:28+00:00 July 26, 2017|

For nearly a century, the O'Shaughnessy seawall has held back the sand and seas of San Francisco's Ocean Beach. At work even longer: the Galveston seawall, built after America's deadliest hurricane in 1900 killed thousands in Texas. These are just two examples of how America's coasts -- particularly those with large urban populations -- have been armored with humanmade structures.

Mississippi Mud May Hold Hope For Louisiana Coast

2017-07-17T09:01:09+00:00 July 17, 2017|

Many studies say capturing Mississippi River sand through diversions is key to rebuilding Louisiana's vanishing coast. But a new study in the open-access journal Earth Surface Dynamics of an old levee breach, or crevasse, along Bayou Lafourche indicates that mud, the most plentiful sediment type carried by the river, may be the most powerful tool in building land.

Extreme Coastal Sea Levels More Likely To Occur, New Data, Advanced Modeling Techniques Suggest

2017-07-12T10:49:18+00:00 July 12, 2017|

Improving projections for how much ocean levels may change in the future and what that means for coastal communities has vexed researchers studying sea level rise for years, but a new international study that incorporates extreme events may have just given researchers and coastal planners what they need. The study, published in Nature Communications uses newly available data and advanced models to improve global predictions when it comes to extreme sea levels. The results suggest that extreme sea levels will likely occur more frequently than previously predicted, particularly in the west coast regions of the U.S. and in large parts of Europe and Australia.

South California Beaches: Rising Sea Level Could Erode Most Of The Shoreline By 2100, USGS Report Says

2017-03-28T16:33:20+00:00 March 28, 2017|

As the water level in the seas and oceans around the world continues to rise, there are many coastal areas that are at risk. A new study by researchers from the U.S. Geological Survey (USGS) showed that California is definitely one of those places, and that the golden state could find anywhere between a third and two-thirds of its southern beaches completely eroded by 2100.

Sea-level Change In Southeast Asia 6,000 Years Ago Has Implications For Today

2017-02-13T14:41:14+00:00 February 13, 2017|

For the 100 million people who live within 3 feet of sea level in East and Southeast Asia, the news that sea level in their region fluctuated wildly more than 6,000 years ago is important, according to research published by a team of ocean scientists and statisticians, including Rutgers professors Benjamin Horton and Robert Kopp and Rutgers Ph.D. student Erica Ashe. That's because those fluctuations occurred without the assistance of human-influenced climate change.

Sea Level Rise Will Disproportionately Hit U.S. This Century, NOAA Warns

2017-01-25T14:39:40+00:00 January 25, 2017|

Global sea level rise is unfolding at a stunning pace, and a new report from the National Oceanic and Atmospheric Association (NOAA) says the U.S. will find itself directly in the crosshairs. Over the coming decades, some parts of the nation’s coastline will be hit harder than others, the study finds. The report — co-authored with the U.S. Department of Commerce, the U.S. Geological Survey, the Environmental Protection Agency, the South Florida Water Management District, and scientists from Rutgers and Columbia University — outlined six likely scenarios for sea level rise, ranging in severity from low to extreme, so that communities and the federal government can plan around those likelihoods.

Greenland Once Lost Nearly All Its Ice—And Could Again

2016-12-13T12:07:25+00:00 December 13, 2016|

Evidence buried in Greenland's bedrock shows the island's massive ice sheet melted nearly completely at least once in the last 2.6 million years. This suggests that Greenland's ice may be less stable than previously believed. “Our study puts Greenland back on the endangered ice-sheet map,” says Joerg Schaefer, a palaeoclimatologist at the Lamont-Doherty Earth Observatory in Palisades, New York, and co-author of a paper published on December 7 in Nature.

Study Offers Coastal Communities Better Way To Prepare For Devastating Storms

2016-12-07T08:45:26+00:00 December 7, 2016|

Coastal storms can cause surges, sea-level rise, and cyclone winds that devastate communities. But emergency management experts in a new study detail a method for involving local stakeholders in planning for such extreme events and thereby helping such vulnerable areas in becoming more resilient. Coastal communities' ability to plan for, absorb, recover and adapt from destructive hurricanes is becoming more urgent. As of 2010, approximately 52 percent of the United States' population lived in vulnerable coastal watershed counties, and that number is expected to grow. Globally, almost half of the world's population lives along or near coastal areas.

Antarctica Ice Shelf Is Breaking From The Inside Out

2016-12-05T08:53:17+00:00 December 5, 2016|

An ice sheet in West Antarctica is breaking from the inside out. The significant new findings published yesterday in Geophysical Research Letters show that the ocean is melting the interior of the Pine Island Glacier, which is about the size of Texas. The crack seems to be accelerating, said Ian Howat, associate professor of earth sciences at Ohio State University and the study’s lead author. The findings are the first confirmation of something glaciologists have long suspected was happening, he said.

Huge Glacier Retreat Triggered in 1940s

2016-12-01T11:27:54+00:00 November 29, 2016|

The melting Antarctic glacier that now contributes more to sea-level rise than any other ice stream on the planet began its big decline in the 1940s. This is when warm ocean water likely first got under Pine Island Glacier (PIG) to loosen the secure footing it had enjoyed up until that point. Researchers figured out the timing by dating the sediments beneath the PIG. It puts the glacier’s current changes in their proper historical context, the scientists tell Nature magazine.

Cosmic Clue To UK Coastal Erosion

2016-11-08T12:36:35+00:00 November 8, 2016|

Recent centuries have seen a big jump in the rates of erosion in the iconic chalk cliffs on England's south coast. A new study finds that for thousands of years the rocks were being beaten back by the waves at perhaps 2-6cm a year. The past 150 years has seen this retreat accelerate 10-fold, to more than 20cm a year.

These Antarctic Glaciers Have Experienced Staggering Ice Loss- And Scientists Think They Know Why

2016-10-28T11:20:42+00:00 October 28, 2016|

Few regions of the world are as unstable in the face of advancing climate change as frozen West Antarctica, where rapidly melting glaciers have scientists on edge about the potential for huge amounts of future sea-level rise. Now, a new study has pinpointed some of the most rapid ice losses observed in the region in the past 15 years — and it supports a growing scientific belief that warm ocean water is behind the melting.

Islands To Lose Fresh Water As Rising Seas Sink Them From Within

2016-10-21T13:03:04+00:00 October 21, 2016|

Small island nations are among the countries most at risk from climate change, as rising sea levels threaten to swamp them and make their fresh water salty. But they face another danger – the rising seas will cause them to lose their fresh water by pushing it above ground, where it gets evaporated.

ODU, National Security Experts Make Recommendations In Sea Level Rise Resiliency Report

2017-03-02T15:43:58+00:00 October 20, 2016|

(Click to enlarge) (Credit: Mr. William Folsom, NOAA, NMFS) Track the science, identify at-risk infrastructure and choose a thought leader to "own" sea level rise in Hampton Roads — these are among the many recommendations contained in a regional resilience report unveiled Wednesday. "Sea Level Rise Preparedness: An Intergovernmental Blueprint for Community Resiliency" [...]

Impressive Geological Features Reveal Isthmus Of Panama Is ‘Only’ Three Million Years Old

2016-08-23T14:09:00+00:00 August 23, 2016|

The Isthmus of Panama formed three million years, scientists have found out. This contradicts recent studies that pushed this date back to millions of years before. The Isthmus of Panama – the narrow stretch of land lying between the Caribbean Sea and the Pacific Ocean and linking North and South America – has long fascinated scientists.

Oyster Archaeology: Ancient Trash Holds Clues To Sustainable Harvesting

2016-08-16T12:29:14+00:00 August 16, 2016|

To see how much the population has changed over the years, Breitburg and other biologists and archaeologists undertook the largest survey to date of any shellfishery, chronicling the Chesapeake Bay's oyster population from almost 800,000 years ago to the present day. The researchers were surprised to find thousands of years during which oyster populations stayed stable – the era of Native Americans.

Global Warming’s Next Surprise: Saltier Beaches

2016-08-12T09:59:02+00:00 August 12, 2016|

Batches of sand from a beach on the Delaware Bay are yielding insights into the powerful impact of temperature rise and evaporation along the shore that are in turn challenging long-held assumptions about what causes beach salinity to fluctuate in coastal zones that support a rich network of sea creatures and plants.

NASA Science Flights Target Melting Arctic Sea Ice

2016-07-22T10:49:42+00:00 July 22, 2016|

This summer, with sea ice across the Arctic Ocean shrinking to below-average levels, a NASA airborne survey of polar ice just completed its first flights. Its target: aquamarine pools of melt water on the ice surface that may be accelerating the overall sea ice retreat.

Researchers Discover Fate Of Melting Glacial Ice In Greenland

2016-05-03T12:13:40+00:00 May 3, 2016|

Over the past several decades, scientists have observed a significant increase in the melting of glacial land ice on the island of Greenland, spurring concerns about global sea level rise and the long-term effects of atmospheric warming. What has been less clear, however, is what happens to this meltwater once it enters the ocean.

Clues To Rising Seas Are Hidden In Polar Ice

2016-02-18T15:28:37+00:00 February 18, 2016|

(Click to enlarge) "The question is: Can we predict sea level? And the answer is no," said David Holland, who directs New York University's Center for Atmosphere Ocean Science. (Credit:go_greener_oz/ Flickr) Few consequences of global warming pose as severe a threat to human society as sea-level rise.(From the Washington Post/by Juliet Eilperin) -- But [...]

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