That study
found seas rose 1.6 meters (5 feet) per century «when the global mean temperature was 2 °C higher than today,» a rather mild version of where we are headed in the second half of this century.
Not exact matches
The U.S. president doubts mainstream
findings that climate change will cause more floods, droughts, wildfires, heatwaves and
rising sea levels.
The report
found, among other things, that 43 of the lower 48 U.S. states have set at least one monthly heat record since 2010,
sea levels are expected to
rise between one and four feet by the end of this century, winter storms have increased in intensity and frequency, and the past decade was warmer than every previous decade in every part of the country.
Gore begins with hero scientists like Roger Revelle, who first began to imagine the magnitude of this tragedy, and continues through the latest scientific
findings, like last fall's revelation that the ice over Greenland seems to be melting much faster than anyone had predicted — news that carries potentially cataclysmic implications for the rate of
sea - level
rise.
I'm so glad you
find them delicious — I'm always amazed how tasty they turn out given their few ingredients — magic:) As for the
rise, are you baking at
sea level or high - altitude?
Kahan said that the southeast Florida group has been able to unite people across the political spectrum to take coordinated action on
sea - level
rise by incorporating his
findings in its approach to communications.
That study
found that a 1.5 degrees Celsius world would reach a peak rate of
sea - level
rise about 0.7 inches per decade less than in a 2 degrees Celsius world — a potentially life - saving reduction for some vulnerable coastal ecosystems.
(No errors have been
found in the first, and most often quoted, report, which says that the evidence is incontrovertible that human activity is causing the atmosphere to warm and the
seas to
rise.)
Dan Kahan of Yale Law School shared
findings from his research on communicating the severity of climate change and
sea - level
rise in southeast Florida.
The analysis
found that, of the nine military installations along the mid-Atlantic coast, four would likely lose 10 % or more of their land to
sea - level
rise by 2050.
With
sea - level
rise, however, the researchers
found that the range of 2001 predictions were lower than the actual
rise.
Published this week in Nature Climate Change, the initial study
finds that embankments constructed since the 1960s are primarily to blame for lower land elevations along the Ganges - Brahmaputra River Delta, with some areas experiencing more than twice the rate of the most worrisome
sea - level
rise projections from the United Nations» Intergovernmental Panel on Climate Change.
«The
findings of this paper demonstrate that long - term issues like global
sea - level
rise are certainly a threat to countries like Bangladesh.
The team
found that results from the two methods roughly matched and showed that Greenland is losing enough ice to contribute on average 0.46 millimetres per year to global
sea - level
rise.
Considering that existing climate models typically do not consider northeast Greenland with future
sea - level projections, the
findings suggest that
sea - level
rise estimates may err on the high side, close to 3 feet or higher, said Khan.
A recent study (pdf format)
found that the West Antarctic ice sheet would probably collapse if
sea temperatures
rose by more than 5 °C.
«Based on what we've
found, it is possible that
sea - level
rise over decadal time scales will be a key storyline in future climate predictions,» he said.
«However, our
findings show that
sea - level
rise could be considerably faster than anything yet observed, and because of this situation, coastal communities need to be prepared for potential inundation.»
Khanna said it's likely that additional fossil evidence of punctuated
sea - level
rise will be
found in the rock record at sites around the globe.
For an exemplary implementation of their method, the scientists applied it to the city of Copenhagen in Denmark: They
found that a moderate mean
sea level
rise of 11 centimeters until mid-century would in the same period double economic losses in this city, given no action is taken.
Since 1995, researchers
found that Greenland has lost a total of about 4,000 gigatons of ice, which has become the biggest single contributor to the
rise in global
sea levels.
How exactly all the project
findings — the decline of angiosperms, mollusks, and dinosaurs; the
rising and falling
sea; the cooling climate — fit together isn't clear yet.
Hotter temperatures, an increase in heavy downpours and
rising sea levels are among the effects of «unequivocal» warming, that analysis
found.
The analysis, which used land elevation and tidal data,
found that 460 acres, or about a sixth of Hallandale Beach, would be below
sea level during high tide under a 3 - foot scenario of
rise, according to Nancy Gassman, a natural resources administrator for Broward County's Natural Resources Planning and Management Division who worked on the assessment.
The study's
findings suggest that future
sea level
rise resulting from global warming will also have these hot spot periods superimposed on top of steadily
rising seas, said study co-author Andrea Dutton, assistant professor in UF's department of geological sciences in the College of Liberal Arts and Sciences.
«When we modeled future shoreline change with the increased rates of
sea level
rise (SLR) projected under the IPCC's «business as usual» scenario, we
found that increased SLR causes an average 16 - 20 feet of additional shoreline retreat by 2050, and an average of nearly 60 feet of additional retreat by 2100,» said Tiffany Anderson, lead author and post-doctoral researcher at the UH Mānoa School of Ocean and Earth Science and Technology.
A University of Miami study released in 2016
found that coastal flooding has accelerated; the flooding coincides with an accelerated rate of
sea - level
rise in South Florida.
By examining an old crevasse along Bayou Lafourche, a precursor of the Mississippi River, the researchers
found that mud can build enough land to keep up with
sea level
rise if the diversion flows into existing vegetated areas protected from marine forces.
For now, the
findings can't tell scientists exactly how much
sea - level
rise is corresponding with the observed changes, although a net retreat of the grounding line suggests that there's more reason for worry than not.
Pettersen is hopeful that, with more data analysis over longer periods of time, researchers will
find more answers yet to account for the melting ice sheet and the subsequent
sea level
rise that has already had an impact on regions across the planet.
Climate change and expanding
seas could cause the waters beneath the Golden Gate Bridge to
rise 3 to 4 feet by century's end, a new study
finds.
The new study
found that the species then
rose from less than 90,000 animals in 1975 to an estimated 281,450 in 2008, which was roughly the carrying capacity for
sea lions in the California Current Ecosystem at that time.
What Girard has
found is that «it's almost better to sit down and talk face to face with certain people,» to discuss broad topics like
sea - level
rise or the threat of storms like Superstorm Sandy at the local level, project by project rather than systematically.
Bringing the theory to life While the genetic evidence
found in 2007 was «pretty robust,» according to O'Rourke, many scientists disregarded the theory due to a lack of archaeological evidence, most of which would have presumably disappeared underwater after
sea levels
rose.
According to Hill, another interesting
finding was that future extreme water levels were due to more than
sea level
rise, as waves and tides will be amplified in the future.
In 2007 U.S. Geological Survey scientists analyzing mangrove roots and soil up to 8,000 years old
found that during periods of
rising sea level, the roots grow faster and bolster the soil, which helps hoist the tree upward.
«Climate change could trigger strong
sea level
rise: International research team presents
findings from frozen «climate archive» of Antarctica.»
Nathaniel Johnson and Shang - Ping Xie at the University of Hawaii studied satellite and rain - gauge data from the last 30 years and
found that
sea surface temperatures in the tropics now need to be about 0.3 °C higher than they did in 1980 before the air above
rises and produces rain (Nature Geoscience, DOI: 10.1038 / ngeo1008).
What's left to figure out is whether this is happening with other subglacial lakes around the Greenland ice sheet, as well as whether and how to incorporate the
findings into models that are aimed at gauging how much Greenland might change with the warming climate and how much water it could add to the
rising seas.
The report
finds that the U.S. is particularly vulnerable to projected
sea level
rise; areas such as the Northeast and western Gulf of Mexico could face rates that exceed global average
sea level
rise.
The
finding, detailed in the Jan. 22 issue of the journal Nature, suggests that this process could be important to more accurately modeling how Greenland will respond to climate change and contribute to the already 8 inches of global
sea level
rise since 1900.
A new study
found that vulnerability of deep -
sea biodiversity to climate change's triple threat —
rising water temperatures, and decreased oxygen, and pH levels — is not uniform across the world's oceans.
Suppose you managed to
find some children who knew nothing about the oceans, handed them a long measuring stick and sent them off to the seaside
find out whether
sea level is
rising or falling.
In a
finding offering another
sea - level
rise warning, scientists yesterday reported the existence of deep, canyon - like valleys in the bedrock underneath the Greenland ice sheet that could facilitate the extensive flow of ice into the ocean.
The
findings, published yesterday in the journal Science, suggest scientists still have much to learn about the factors that govern the behavior of ice sheets — knowledge that is crucial to developing more accurate projections of future
sea level
rise.
Tokinaga's team
found that when the interdecadal
rise in
sea surface temperatures was included in simulation calculations, the results properly reflected early Arctic conditions.
A report from the Intergovernmental Panel on Climate Change last year
found that between 1993 and 2010, the Greenland ice sheet contributed less than 10 percent to global
sea - level
rise.
DeConto's
findings suggest that even if countries meet the pledges made as part of the UN climate agreements in Paris last year, global
sea level could still
rise 1 metre by 2100.
For his part, Rahmstorf says he and other scientists can continue to talk publicly about the methods by which they estimate future
sea - level
rise, in the hopes that public officials will become more comfortable with their
findings.
A new review analyzing three decades of research on the historic effects of melting polar ice sheets
found that global
sea levels have
risen at least six meters, or about 20 feet, above present levels on multiple occasions over the past three million years.