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UrduNewly published study in Scientific Reports details how corals are exhibiting dynamics similar to last big extinction 66 million years ago when the dinosaurs disappeared
Tag: OCEANOGRAPHY
World’s sandy beaches under threat from climate change
Half of the world’s beaches could disappear by the end of the century due to coastal erosion, according to a new study led by the JRC. Erosion is a major problem facing sandy beaches that will worsen with the rising…
Nutrient pollution and ocean warming negatively affect early life of corals
Corals are constantly exposed to multiple environmental stressors at any given time. On a global scale, climate change is increasing seawater temperatures which can cause coral to bleach. Locally, land-use practices can cause poor water quality run-off of land-based fertilizers…
Sinking sea mountains make and muffle earthquakes
Subduction zones — places where one tectonic plate dives beneath another — are where the world’s largest and most damaging earthquakes occur. A new study has found that when underwater mountains — also known as seamounts — are pulled into…
Sinking sea mountains make and muffle earthquakes
Subduction zones — places where one tectonic plate dives beneath another — are where the world’s largest and most damaging earthquakes occur. A new study has found that when underwater mountains — also known as seamounts — are pulled into…
Is there a technological solution to aquatic dead zones?
Could pumping oxygen-rich surface water into the depths of lakes, estuaries, and coastal ocean waters help ameliorate dangerous dead zones?
Is there a technological solution to aquatic dead zones?
Could pumping oxygen-rich surface water into the depths of lakes, estuaries, and coastal ocean waters help ameliorate dangerous dead zones?
Geologists determine early Earth was a ‘water world’ by studying exposed ocean crust
AMES, Iowa – The Earth of 3.2 billion years ago was a “water world” of submerged continents, geologists say after analyzing oxygen isotope data from ancient ocean crust that’s now exposed on land in Australia. And that could have major…
Geologists determine early Earth was a ‘water world’ by studying exposed ocean crust
AMES, Iowa – The Earth of 3.2 billion years ago was a “water world” of submerged continents, geologists say after analyzing oxygen isotope data from ancient ocean crust that’s now exposed on land in Australia. And that could have major…
Early Earth may have been a ‘waterworld’
Kevin Costner, eat your heart out. New research shows that the early Earth, home to some of our planet’s first lifeforms, may have been a real-life “waterworld”– without a continent in sight. The study, which appears March 2 in Nature…
Ocean changes almost starved life of oxygen
Chemical changes in the oceans more than 800 million years ago almost destroyed the oxygen-rich atmosphere that paved the way for complex life on Earth, new research suggests. Then, as now, the planet had an “oxidizing” atmosphere, driven by phytoplankton…
Early Earth may have been a ‘waterworld’
Kevin Costner, eat your heart out. New research shows that the early Earth, home to some of our planet’s first lifeforms, may have been a real-life “waterworld”– without a continent in sight. The study, which appears March 2 in Nature…
Ocean changes almost starved life of oxygen
Chemical changes in the oceans more than 800 million years ago almost destroyed the oxygen-rich atmosphere that paved the way for complex life on Earth, new research suggests. Then, as now, the planet had an “oxidizing” atmosphere, driven by phytoplankton…
Study shows rapid sea level rise along Atlantic coast of North America in 18th century
The study, led by the University of York, found evidence for a period of enhanced pre-industrial sea-level rise of about two to three millimetres per year in three locations: Nova Scotia, Maine and Connecticut.
A dam right across the North Sea
A defense against climate change, but primarily a warning
Citizen science and paddle surf to study microplastic pollution in Barcelona’s coastline
Study in Prat and Barceloneta beaches
Citizen science and paddle surf to study microplastic pollution in Barcelona’s coastline
Study in Prat and Barceloneta beaches
Antarctic ice walls protect the climate
Inland Antarctic ice contains volumes of water that can raise global sea levels by several metres. A new study published in the journal Nature shows that glacier ice walls are vital for the climate, as they prevent rising ocean temperatures…
Antarctic ice walls protect the climate
Inland Antarctic ice contains volumes of water that can raise global sea levels by several metres. A new study published in the journal Nature shows that glacier ice walls are vital for the climate, as they prevent rising ocean temperatures…
Breaking down stubborn molecules
Researchers connect microbes in the twilight zone of the ocean with the breakdown of tough organic molecules
Troubled waters
New research reveals the unseen environmental damage being done to coral reefs in the hotly contested South China Sea, as China and other nations jostle for control of the disputed sea lanes. Professor Eric Wolanski and Dr Severine Chokroun from…
Freshwater flowing into the North Pacific plays key role in North America’s climate
CORVALLIS, Ore. – Massive freshwater river flows stemming from glacier-fed flooding at the end of the last ice age surged across eastern Washington to the Columbia River and out to the North Pacific Ocean, where they triggered climate changes throughout…
Breaking down stubborn molecules
Researchers connect microbes in the twilight zone of the ocean with the breakdown of tough organic molecules
Freshwater flowing into the North Pacific plays key role in North America’s climate
CORVALLIS, Ore. – Massive freshwater river flows stemming from glacier-fed flooding at the end of the last ice age surged across eastern Washington to the Columbia River and out to the North Pacific Ocean, where they triggered climate changes throughout…
Tropical nations worst hit by climate-related fish shifts
Policymakers will need to step up to the challenges caused by significant shifts in fish species distributions caused by climate change. Tropical countries stand to lose the most fish species due to climate change, with few if any stocks replacing…
Solar storms may leave gray whales blind and stranded
A new study reported in the journal Current Biology on February 24 offers some of the first evidence that gray whales might depend on a magnetic sense to find their way through the ocean. This evidence comes from the discovery…
Solar storms may leave gray whales blind and stranded
A new study reported in the journal Current Biology on February 24 offers some of the first evidence that gray whales might depend on a magnetic sense to find their way through the ocean. This evidence comes from the discovery…
Why do whales migrate? They return to the tropics to shed their skin, scientists say
First suggested for killer whales, skin molt may drive long-distance migration for all whales that forage in cold waters
NRL researchers monitor changing Arctic using sound
WASHINGTON — U.S. Naval Research Laboratory scientists developed Ice-tethered Acoustic Buoys to monitor the acoustic and oceanographic environment in the changing Arctic. The buoys provide critical oceanographic data to improve prediction capabilities of ocean and climate models. These buoys validated…
NRL researchers monitor changing Arctic using sound
WASHINGTON — U.S. Naval Research Laboratory scientists developed Ice-tethered Acoustic Buoys to monitor the acoustic and oceanographic environment in the changing Arctic. The buoys provide critical oceanographic data to improve prediction capabilities of ocean and climate models. These buoys validated…
Earthquakes disrupt sperm whales’ ability to find food, study finds
Otago scientists studying sperm whales off the coast of Kaik?ura have discovered earthquakes affect their ability to find food for at least a year. The University of Otago-led research is the first to examine the impact of a large earthquake…
Warming oceans are getting louder (audio available)
SAN DIEGO–One of the ocean’s loudest creatures is smaller than you’d expect–and will get even louder and more troublesome to humans and sea life as the ocean warms, according to new research presented here at the Ocean Sciences Meeting 2020.…
Mediterranean rainfall immediately affected by greenhouse gas changes
Mediterranean-type climates face immediate drops in rainfall when greenhouse gases rise, but this could be interrupted quickly if emissions are cut.
Seeding oceans with iron may not impact climate change
Study finds Earth’s oceans contain just the right amount of iron; adding more may not improve their ability to absorb carbon dioxide
Earth’s glacial cycles enhanced by Antarctic sea-ice
During past glacial periods the earth was about 6ºC colder and the Northern hemisphere continents were covered by ice sheets up to 4 kilometers thick. However, the earth would not have been so cold, nor the ice sheets so immense,…
Warming, acidic oceans may nearly eliminate coral reef habitats by 2100
SAN DIEGO–Rising sea surface temperatures and acidic waters could eliminate nearly all existing coral reef habitats by 2100, suggesting restoration projects in these areas will likely meet serious challenges, according to new research presented here today at the Ocean Sciences…
Coral reefs: Centuries of human impact
Coral reefs account for one-third of all biodiversity in the oceans and are vital to humanity. But long-standing human stressors including agricultural run-off and overfishing and more recent ocean warming from climate change have all contributed to large-scale coral reef…
Coral reefs: Centuries of human impact
Coral reefs account for one-third of all biodiversity in the oceans and are vital to humanity. But long-standing human stressors including agricultural run-off and overfishing and more recent ocean warming from climate change have all contributed to large-scale coral reef…
mystery solved: Why ocean’s carbon budget plummets beyond the twilight zone
Helping fill a gap in the understanding of the biological carbon pump – a major climate regulator – a new study shows that fragmentation of large organic particles into small ones accounts for roughly half of particle loss in the…
Oceans: particle fragmentation plays a major role in carbon sequestration
A French-British team directed by the Laboratoire d’océanographie de Villefranche-sur-Mer (CNRS/Sorbonne Université) has just discovered that a little known process regulates the capacity of oceans to sequester carbon dioxide (CO 2 ). It should be noted that photosynthesis performed by…
mystery solved: Why ocean’s carbon budget plummets beyond the twilight zone
Helping fill a gap in the understanding of the biological carbon pump – a major climate regulator – a new study shows that fragmentation of large organic particles into small ones accounts for roughly half of particle loss in the…
Oceans: particle fragmentation plays a major role in carbon sequestration
A French-British team directed by the Laboratoire d’océanographie de Villefranche-sur-Mer (CNRS/Sorbonne Université) has just discovered that a little known process regulates the capacity of oceans to sequester carbon dioxide (CO 2 ). It should be noted that photosynthesis performed by…
The Antarctica Factor: model uncertainties reveal upcoming sea level risk
Sea level rise due to ice loss in Antarctica could become a major risk for coastal protection even in the near term, scientists say
New study shows Deepwater Horizon oil spill larger than previously thought
Toxic and invisible oil spread well beyond known satellite footprint, fishing closures
New study shows Deepwater Horizon oil spill larger than previously thought
Toxic and invisible oil spread well beyond known satellite footprint, fishing closures
Simulations Show Effects of Buoyancy on Drift in Florida Current
Acquiring a better understanding for how objects drift in the ocean has importance for many uses, but most models lack a systematic approach. One new effort looks to provide a clearer alternative. Researchers have released the results from an experiment aimed at tracking different objects as they drift in the Florida Current. Using satellite data, the group developed a new model for how objects drift. They discuss their work in this week’s Physics of Fluids.
Simulations show effects of buoyancy on drift in Florida Current
Using data from GPS-equipped buoys, a new use for a widely used approach for fluid dynamics provides clues for ocean dynamics, ranging from litter cleanup to algae movement
Storm-induced sea level spikes differ in origin on US east, gulf coasts
The U.S. East and Gulf Coasts differ in how ocean and atmospheric circulation and sea level interact to produce storm surges, and both regions will experience greater storm surges as global warming progresses, according to new research from a University…
Coincidences influence the onset and ending of ice ages
When we predict future climate, it is important to understand the climate of the past. We do. Mostly. Some details are still debatable. An example of that are the periodicities of ice ages – that is, how ice ages come…
Simulations show effects of buoyancy on drift in Florida Current
Using data from GPS-equipped buoys, a new use for a widely used approach for fluid dynamics provides clues for ocean dynamics, ranging from litter cleanup to algae movement