Current Arctic Ocean News and Events

Current Arctic Ocean News and Events, Arctic Ocean News Articles.
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Glaciers accelerate in the Getz region of West Antarctica
Glaciers in West Antarctica are moving more quickly from land into the ocean, contributing to rising global sea levels. A 25-year record of satellite observations has been used to show widespread increases in ice speed across the Getz sector for the first time, with some ice accelerating into the ocean by nearly 50%. (2021-02-23)

Alaska thunderstorms may triple with climate change
Warming temperatures will potentially alter the climate in Alaska so profoundly later this century that the number of thunderstorms will triple, increasing the risks of widespread flash flooding, landslides, and lightning-induced wildfires, new research finds. (2021-02-23)

Future ocean warming boosts tropical rainfall extremes
Climate models predict that the difference between El Niño and La Niña related tropical rainfall will increase over the next 80 years, even though the temperature difference between El Niño and La Niña may change only very little in response to global warming. A new study uncovers the reasons for this surprising fact. (2021-02-22)

Northern Hemisphere cold surges result of Arctic and tropical Pacific synergistic effects
A case study on China's 2020-21 winter could help predict future extreme winter weather. (2021-02-19)

Study reveals energy sources supporting coral reef predators
Since Charles Darwin's day, the abundance of life on coral reefs has been puzzling, given that most oceanic surface waters in the tropics are low in nutrients and unproductive. But now research, led by Newcastle University and published in in the journal Science Advances, has confirmed that the food web of a coral reef in the Maldives relies heavily on what comes in from the open ocean. (2021-02-19)

The melting of large icebergs is a key stage in the evolution of ice ages
A new study, in which the Andalusian Earth Sciences Institute (IACT) (CSIC-UGR) participated, has described for the first time a key stage in the beginning of the great glaciations and indicates that it can happen to our planet in the future. The findings were recently published in the scientific journal Nature The study claims to have found a new connection that could explain the beginning of the ice ages on Earth (2021-02-19)

Fishes contribute roughly 1.65 billion tons of carbon in feces and other matter annually
Scientists have little understanding of the role fishes play in the global carbon cycle linked to climate change, but a Rutgers-led study found that carbon in feces, respiration and other excretions from fishes - roughly 1.65 billion tons annually - make up about 16 percent of the total carbon that sinks below the ocean's upper layers. (2021-02-17)

USC biologists devise new way to assess carbon in the ocean
A new study by USC scientists explains how marine microbes control the accumulation of carbon matter with important implications for global warming. (2021-02-16)

Story tips: Modeling COVID, permafrost lost and taking the heat
ORNL story tips: Modeling COVID, permafrost lost and taking the heat. (2021-02-16)

3D model shows off the insides of a giant permafrost crater
Researchers from Skoltech have surveyed the newest known 30-meter deep gas blowout crater on the Yamal Peninsula, which formed in the summer of 2020. They piloted the drone used for crater surveillance; that was the first time a drone flew inside the crater for ''underground aerial survey'' 10 to 15 meters below ground, running the risk of losing the aircraft. (2021-02-16)

Turf wars: Ocean acidification and feedback loops lock in turf algal systems
Researchers from the University of Tsukuba have found that seawater acidification locked marine communities of turf algae in a stable state, preventing the growth of kelp and coral species. The degraded turf algal systems were stabilized by feedback loops (control mechanisms in a system). This study will contribute to efforts to manage shifts from complex and diverse marine ecosystems to degraded ones, and better conserve coastal ecosystems and their contributions to human wellbeing. (2021-02-16)

Strange creatures accidentally discovered beneath Antarctica's ice shelves
Prior research has suggested that the watery depths below the Antarctic ice shelves are too cold and nutrient poor to sustain much life. But a new study from British Antarctic Survey published in Frontiers in Marine Science reveals the discovery of a colony of sponges and other animals attached to a boulder on the sea floor - challenging researchers' understanding about the existence of life in extreme environments. (2021-02-15)

Shrubs and soils: A hot topic in the cool tundra
As the climate warms in the Arctic, shrubs expand towards higher latitudes and altitudes. Researchers investigated the impacts of dwarf shrubs on tundra soils in the sub-Arctic Fennoscandia. (2021-02-15)

Increasing hurricane intensity around Bermuda linked to rising ocean temperatures
New research shows that hurricane maximum wind speeds in the subtropical Atlantic around Bermuda have more than doubled on average over the last 60 years due to rising ocean temperatures in the region. (2021-02-12)

Recommendations for regional action to combat marine plastic pollution
Millions of tonnes of plastic waste find their way into the ocean every year. A team of researchers from the Institute for Advanced Sustainability Studies (IASS) in Potsdam has investigated the role of regional ocean governance in the fight against marine plastic pollution, highlighting why regional marine governance should be further strengthened as negotiations for a new global agreement continue. (2021-02-11)

Climate research: rapid formation of iodic particles over the Arctic
When sea ice melts and the water surface increases, more iodine-containing vapours rise from the sea. Scientists from the international research network CLOUD have now discovered that aerosol particles form rapidly from iodine vapours, which can serve as condensation nuclei for cloud formation. The CLOUD researchers, among them scientists from the Goethe University Frankfurt, fear a mutual intensification of sea ice melt and cloud formation, which could accelerate the warming of the Arctic and Antarctic. (2021-02-11)

Seismic surveys using fin whale songs
Fin whale song - one of the strongest animal calls in the ocean - can be used as a seismic source for probing the structure of Earth's crust at the seafloor, researchers report. (2021-02-11)

The songs of fin whales offer new avenue for seismic studies of the oceanic crust
The songs of fin whales can be used for seismic imaging of the oceanic crust, providing scientists a novel alternative to conventional surveying. (2021-02-11)

What's the catch? Algal blooms influence fishing booms
The timing of phytoplankton blooms in the Red Sea could help determine next year's fish catch. (2021-02-10)

Rapid ice retreat during last deglaciation parallels current melt rates
Imagine an ice chunk the size of Hawaii disappearing, almost instantaneously, from an ice sheet. That is what happened in the Storfjorden Through in the Arctic Ocean some 11,000 years ago. (2021-02-10)

New study finds climate change shrinks and shifts juvenile white shark range
Unprecedented sightings of juvenile white sharks at the northern end of Monterey Bay signal a significant shift in the young white sharks' range. Researchers conclude the northward range shift demonstrates the young sharks are being subjected to a loss of suitable thermal habitat, meaning water temperatures within their preferred temperature range are becoming harder to find. (2021-02-09)

New factor in the carbon cycle of the Southern Ocean identified
The Southern Ocean is one of the key regions for understanding the climate system. The photosynthesis-performing plankton there contribute significantly to controlling the CO2 concentration in the atmosphere. But which factors favor or limit plankton growth? Researchers have now published a study showing for the first time that, in addition to the micronutrient iron, manganese can play an important role. Among other things, the results have implications for understanding ice ages in the past. (2021-02-09)

High greenhouse gas emissions from Siberian Inland Waters
Rivers and lakes at high latitudes are considered to be major sources for greenhouse gas emissions to the atmosphere, but these losses are poorly constrained. In a study published in Nature Communications, Umeå University researchers and collaborators quantify carbon emissions from rivers and lakes across Western Siberia, finding that emission are high and exceed carbon export to the Arctic Ocean. (2021-02-09)

Arctic permafrost releases more CO2 than once believed
There may be greater CO2 emissions associated with thawing Arctic permafrost than ever imagined. An international team of researchers, including one from the University of Copenhagen, has discovered that soil bacteria release CO2 previously thought to be trapped by iron. The finding presents a large new carbon footprint that is unaccounted for in current climate models. (2021-02-09)

International research team begins uncovering Arctic mystery
According to 25 international researchers who collaborated on a first-of-its-kind study, frozen land beneath rising sea levels currently traps 60 billion tons of methane and 560 billion tons of organic carbon. Little is known about the frozen sediment and soil -- called submarine permafrost -- even as it slowly thaws and releases methane and carbon that could have significant impacts on climate. (2021-02-09)

Iodine oxoacids formed in oceans have major impact on climate
Molecular iodine, a major emission from the ocean, can quickly convert to iodic oxoacids even under weak daylight conditions. These oxoacids lead rapidly to aerosol particles that significantly affect climate and human health. (2021-02-08)

Better understanding the reasons behind Arctic amplified warming
EPFL professor Julia Schmale is calling on scientists to conduct dedicated process studies and to share their data and research findings on Arctic warming. She stresses the importance of studying how aerosols and clouds interact, as these highly complex and poorly understood mechanisms play a key role in climate change, but are also strongly affected by it. According to her, the region is in rapid transition and scientists need to act to not run behind. (2021-02-08)

High CO2 to slow tropical fish move to cooler waters
A new study from the University of Adelaide, published in Nature Climate Change, shows that the ocean acidification predicted under continuing high CO2 emissions may make cooler, temperate waters less welcoming. (2021-02-08)

Healthy oceans need healthy soundscapes
Rain falls lightly on the ocean's surface. Marine mammals chirp and squeal as they swim along. The pounding of surf along a distant shoreline heaves and thumps with metronomic regularity. These are the sounds that most of us associate with the marine environment. But the soundtrack of the healthy ocean no longer reflects the acoustic environment of today's ocean, plagued with human-created noise. (2021-02-05)

Scientists discover ocean 'surface slicks' are nurseries for diverse fishes
Ocean features called surface slicks are an interconnected superhighway of nursery habitat for more than 100 species of fishes from diverse ocean habitats. (2021-02-04)

Hidden world just below the surface
A team of scientists from NOAA's Pacific Islands Fisheries Science Center, the University of Hawai'i at Mānoa, Arizona State University and elsewhere have discovered that a diverse array of marine animals find refuge in so-called 'surface slicks' in Hawai'i. These ocean features create a superhighway of nursery habitat for more than 100 species of commercially and ecologically important fishes, such as mahi-mahi, jacks, and billfish. Their findings were published today in the journal Scientific Reports. (2021-02-04)

MARLIT, artificial intelligence against marine litter
Floating sea macro-litter is a threat to the conservation of marine ecosystems worldwide. The largest density of floating litter is in the great ocean gyres -systems of circular currents that spin and catch litter- but the polluting waste is abundant in coastal waters and semi closed seas such as the Mediterranean. (2021-02-04)

Human-generated noise pollution dominates the ocean's soundscape
The soundscapes of the Anthropocene ocean are fundamentally different from those of pre-industrial times, becoming more and more a raucous cacophony as the noise from human activity has grown louder and more prevalent. (2021-02-04)

Iodine oxoacids drive rapid aerosol formation in pristine atmospheric areas
Iodine plays a bigger role than thought in rapid new particle formation (NPF) in relatively pristine regions of the atmosphere, such as along marine coasts, in the Arctic boundary layer or in the upper free troposphere, according to a new study. (2021-02-04)

Potentially toxic plankton algae may play a crucial role in the future Arctic
As the sea ice shrinks in the Arctic, the plankton community that produces food for the entire marine food chain is changing. New research shows that a potentially toxic species of plankton algae that lives both by doing photosynthesis and absorbing food may become an important player in the Arctic Ocean as the future sea ice becomes thinner and thinner. (2021-02-03)

The Arctic Ocean was covered by a shelf ice and filled with freshwater
Scientists from Alfred Wegener Institute: ''We need to have a fresh look at the role of the Arctic Ocean.'' (2021-02-03)

Significant cancer rates in California sea lions has major human health implications
20-plus years of data in newly released study by The Marine Mammal Center shows ocean pollutants is one of the leading causes of cancer in sea lions, and highlights how the exposure to environmental contaminants can fast-track the likelihood of humans developing virally caused cancers. (2021-02-02)

Sea ice kept oxygen from reaching deep ocean during last ice age
Extensive sea ice covered the world's oceans during the last ice age, which prevented oxygen from penetrating into the deep ocean waters, complicating the relationship between oxygen and carbon. (2021-02-02)

Are plastics and microplastics in the Ocean on the increase?
A cohort of high-profile co-authors posed this question in a study recently published in the Microplastics and Nanoplastics journal. (2021-02-01)

Marine organisms use previously undiscovered receptors to detect, respond to light
Single-celled organisms in the open ocean use a diverse array of newly discovered genetic tools to detect light, even in tiny amounts, and respond. (2021-02-01)

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