As the world warms and seas rise, some spots are expected to take the brunt of
the higher ocean levels, while others may not see such a deluge, new research by the U.S. Geological Survey (USGS) reveals.
The findings have important implications in terms of planning for sea level rise, as ever - growing coastal communities might have to plan for even
higher ocean levels in a warmer future.
Not exact matches
The Bureau of
Ocean Energy Management (BOEM) is conducting a
high -
level assessment of all waters offshore the United States Atlantic Coast for potential future offshore wind lease locations.
Young also owned his own restaurant in Lake Park, Florida and held
high -
level positions such as executive sous chef at The Boca Raton Resort and Club, executive chef at Gulf Stream Bath and Tennis Club and banquet chef for The Four Seasons
Ocean Grand Hotel in Palm Beach.
Some of our favorite
ocean go - ers, like the big fish - shark, swordfish, mackerel, and snapper can contain
high levels of mercury.
In America, President Akufo - Addo will participate and address the UN
Oceans Conference, the high - level UN Conference being held in New York to support the Implementation of SDG 14: Conserve and sustainably use the oceans, seas and marine resources for sustainable development (Life under W
Oceans Conference, the
high -
level UN Conference being held in New York to support the Implementation of SDG 14: Conserve and sustainably use the
oceans, seas and marine resources for sustainable development (Life under W
oceans, seas and marine resources for sustainable development (Life under Water).
A Republican lawmaker on the House Science, Space and Technology Committee said Thursday that rocks from the White Cliffs of Dover and the California coastline, as well as silt from rivers tumbling into the
ocean, are contributing to
high sea
levels globally.
Near - shore volcanic vents off Italy represent a microcosm of how the
ocean may react to
high levels of carbon dioxide
«We realised that our buoys are in fact a kind of marine debris,» says Nikolai Maximenko of the University of Hawaii in Honolulu, who collaborated with 5 Gyres researchers to identify which areas of the
ocean should have especially
high levels of plastic pollution.
While tougher regulations have driven lead
levels down globally since the 1990s, mercury
levels in the North Pacific
Ocean have increased 30 percent over the last 20 years, potentially putting humans at
higher risk of exposure from seafood (See «Made in China: Our Toxic, Imported Air Pollution»).
Although Woods Hole doesn't expect
levels to be dangerously
high in the
ocean or in seafood as the plume spreads across the Pacific, this is an evolving situation that demands careful, consistent monitoring to make sure predictions are true.
The island sits directly on the equator, at sea
level and far from any
high elevation, so what happens there is a good indication of what's happening in the wider tropical Pacific
Ocean.
It had much
higher sea
levels, forests extended all the way to the Arctic
Ocean, and there was almost certainly a lot less sea ice.
And a lot of this extra water ends up in the
oceans, leading, eventually, to
higher sea
levels.
For three years, they observed marine environments near undersea volcanic vents where CO2
levels are
high — providing a window into the future acidity of
ocean water — along with adjacent areas of normal acidity.
Also associated with this event are
high levels of carbon dioxide in the atmosphere, which are linked to elevated
ocean and atmospheric temperatures.
In a presentation at a recent
ocean acidification conference, Tatters reported that the more CO2 and the less silicate, the
higher the diatom's toxin production — more than doubling at the
level of dissolved CO2 scientists expect the
oceans to reach by 2100.
Charlie's research told him that during El Niño weather cycles, the surface seawaters in the Great Barrier Reef lagoon, already heated to unusually
high levels by greenhouse gas — induced warming, were being pulsed from a mass of
ocean water known as the Western Pacific Warm Pool onto the reef's delicate living corals.
This was due to a combination of factors: a less active sun,
higher levels of cooling aerosols from volcanoes and Asian factories, and increased heat uptake by the
oceans.
Scientists believe that the different pattern of deep
ocean circulation was responsible for the elevated temperatures 3 million years ago when the carbon dioxide
level in the atmosphere was arguably what it is now and the temperature was 4 degree Fahrenheit
higher.
CO2
levels are projected to be 2.5 times
higher in the
oceans by the end of this century, which is causing the
ocean to acidify at a rate unprecedented for 300 million years.
«This paper is significant because it identifies a link between
ocean conditions and the magnitude of the toxic bloom in 2015 that resulted in the
highest levels of domoic acid contamination in the food web ever recorded for many species,» said co-author Kathi Lefebvre, a marine biologist at NOAA's Northwest Fisheries Science Center.
Tests of some fish species, which can race across the
ocean more quickly than slow - moving currents, have shown
higher levels of radiation, although radiation
levels in sea life off the U.S. shore are still safe, Buesseler said.
But because the surrounding
ocean would have been warmer, and stabilizing sea ice less abundant, the massive East Antarctic ice sheet may have contributed to
higher sea
levels by flowing more quickly towards the
ocean.
It then fluctuated around that
level, reaching a
high of 306,220 in 2012 before declining below the carrying capacity in the years since as
ocean conditions changed.
During that time period, trees overtook the tundra, sprouting right to the edges of the Arctic
Ocean, and the seas swelled, pushing ocean levels 65 to 80 feet hi
Ocean, and the seas swelled, pushing
ocean levels 65 to 80 feet hi
ocean levels 65 to 80 feet
higher.
To test the state of the
ocean, researchers at the University of British Columbia, Vancouver, and the International Center for Living Aquatic Resources Management in Makati, Philippines, assigned each major food fish a «trophic
level,» depending on how
high it is on the food chain.
Though familiar to humans as an antiseptic,
high levels of H2O2 can inhibit the growth of phytoplankton, tiny plants that are the base of many
ocean food chains.
«Urban organics» thus remain at
higher levels longer, says Canuel, «delivering more organic material to the river mouth and increasing the likelihood that low - oxygen conditions will develop in downstream locations such as estuaries and the coastal
ocean.»
The strength of the byssal threads varies seasonally, Carrington said, with mussels creating significantly weaker threads in late summer when the
oceans reach
higher temperatures and
high levels of acidity — both of which are also on the rise due to climate change.
«No one expected that the
highest levels of cesium in
ocean water today would be found not in the harbor of the Fukushima Dai - ichi nuclear power plant, but in the groundwater many miles away below the beach sands,» said Sanial.
Dear EarthTalk:
Oceans are in big trouble and I understand President Obama is creating a
high -
level ocean council to address them.
Further, in areas of the
ocean with persistent or frequent eddies, Qiu and co-authors from the Japan Meteorological Agency, Caltech and NASA Jet Propulsion Laboratory determined that sea
level can reliably be used to calculate circulation at a fairly
high resolution, that is, at fairly small length scales (resolution of 10 miles).
The region also experienced the
highest rates of sea -
level rise over the world, indicating large increases in
ocean heat content and leading to substantial impacts on small island states in the region.
Grant's study this past spring noted that pollution
levels at Huntington Beach were consistently
higher at
high tide, and rain has long been considered a good predictor of troubled
ocean waters.
Earlier this year, researchers discovered that periods when the
ocean had
high levels of trace elements — like zinc, copper, manganese and selenium — seemed to overlap with periods of
high productivity, including the Cambrian explosion, when most groups of living animals first appeared.
Leader of the US delegation to the summit, William Reilly, called the
oceans «a US priority» and gave strong backing for a
high -
level international meeting to discuss worsening pollution of coastal zones.
With the
higher glacier speeds in mind, they calculate that Greenland currently contributes 0.57 millimeter of
ocean level rise every year out of a total of three millimeters.
Surprisingly
high pollution
levels were observed over the entire northern Indian
Ocean toward the Intertropical Convergence Zone at about 6 ° S.
Published in the journal Oecologia, the study is the first to show that even freshwater fish which only spend a small portion of their lifecycle in the
ocean are likely to be seriously affected under the
higher CO2
levels expected at the end of the century.
FULL - BLOWN FALLOUT Remnant radiation
levels from nuclear testing near Bikini Atoll in the Pacific
Ocean, as seen in this explosion in 1946, are far
higher than previously predicted, new research shows.
Critters living more than six miles below the
ocean surface contain
high levels of harmful compounds like PCBs and flame retardants.
The salmon, to be sold under the SweetSpring label, have also been shown to contain
high levels of omega - 3 fatty acids, placing the salmon on Seafood Watch's newly created Super Green List, which denotes that the fish is good for human health without causing harm to the
ocean.
Some scientists are linking the phenomenon to warmer waters and
ocean acidification caused by
high levels of carbon dioxide in the atmosphere.
Now, a team of researchers has put forward some of the strongest evidence yet to support the hypothesis that
high levels of oxygen in the
oceans were crucial for the emergence of skeletal animals 550 million years ago.
Thanks to industrialization, mercury
levels in the atmosphere are at least three times
higher than they were 150 years ago, and mercury
levels in
ocean surface waters are
higher too.
The ozone measurements, taken between 2 and 6 miles in altitude (3 - 10 kilometers) over a large part of the eastern Indian
Ocean, were as
high as 80 parts per billion -
levels similar to a polluted day in a U.S. city and several times more than normal.
In the U.S. study, median plasma
levels of certain PFAAs were
highest in alligators on Kiawah Island, an Atlantic
Ocean barrier island southwest of Charleston, South Carolina, and on Merritt Island in Florida.
With
higher levels of carbon dioxide and
higher average temperatures, the
oceans» surface waters warm and sea ice disappears, and the marine world will see increased stratification, intense nutrient trapping in the deep Southern
Ocean (also known as the Antarctic
Ocean) and nutrition starvation in the other
oceans.
CO2 concentrations would start to fall immediately since the
ocean and terrestrial biosphere would continue to absorb more carbon than they release as long as the CO2
level in the atmosphere is
higher than pre-industrial
levels (approximately).