Researchers have reevaluated sea level rise predictions, finding they may be too conservative. By comparing model simulations with historical data, the team found that the rate of sea level rise has been accelerating over the past 150 years.
A new study finds that even a modest sea level rise would place 100 airports below mean sea level by 2100, posing a significant risk to global passenger and freight movements. The researchers ranked airports at risk from sea level rise, with some in Asia and Europe topping the list.
Researchers used phreatic overgrowths on speleothems in Mallorca caves to determine past sea levels, providing a way to precisely measure sea levels. The study's results show that sea level dropped significantly after the Pliocene period and fluctuated during warm periods.
Cornell University researchers estimated the depth of Kraken Mare on Saturn's moon Titan to be at least 1,000 feet, using data from the Cassini mission. The sea is also massive, covering an area nearly as large as all five Great Lakes combined.
Researchers have developed a new method using tetra-unsaturated alkenone (C37:4) molecules to reconstruct sea ice abundance and distribution from the ancient past. This discovery could aid in understanding human-induced climate change by providing a reliable proxy for sea ice concentration through time.
Researchers found the error source of a sea-ice model varies with the season, leading to discrepancies between simulations and observations in both cold and warm seasons. The study suggests using an ensemble approach to consider seasonal variations in model errors, improving future simulation and prediction of Arctic sea ice.
The Caspian Sea is projected to lose over a third of its surface area due to accelerating sea level drops, posing significant threats to unique ecosystems and millions of people living near the sea. Researchers urge immediate action to mitigate this problem, which could have devastating consequences like global sea level rise.
A new assessment suggests sea level rise could be higher than current estimates by 2100 due to uncertainties in ice sheet dynamics and warming oceans. Scientists identify key areas of research needed to improve models and predictions, including better mapping of glacier ground and improved coupling of atmosphere-ocean-ice sheet models.
Researchers found that unusual warm Pacific seawater and sustained high air pressure over the Bering Sea led to delayed sea ice formation in the Pacific Arctic region. This study improves Arctic sea ice forecast and benefits global weather forecasting and local ecosystem health.
A study analyzing Arctic tundra shrub-ring chronologies from 1979 to 2008 found that most shrubs experienced increased radial growth as Arctic sea ice declined. However, 39% of shrubs showed decreased growth, often at drier sites, suggesting changes in moisture availability constrain responses to warming temperatures.
The sunflower sea star, a key predator in kelp forests, has suffered a dramatic 90.6% decline due to sea star wasting syndrome, resulting in an estimated 5.75 billion animal deaths and nearly complete population loss in the contiguous US and Mexico.
Scientists have shown that abrupt climate change in the past was closely linked to rapid sea ice decline. The study documents how sudden warming of the climate occurred when sea ice cover changed from year-round to seasonal ice cover in Nordic seas.
A new study warns that the Greenland ice sheet will experience irreversible melting if global warming exceeds 2°C, leading to significant sea-level rise and permanent changes. The ice sheet's decline could be reversed with actions to counteract global warming before it's too late.
Researchers reconstructed atmospheric carbon dioxide levels, global sea level, and ice volume for a period around 2.75 to 2.4 million years ago. The study highlights the EAIS's vulnerability to melting due to rising atmospheric CO2 levels and climate change.
Scientists have discovered an extremely rare species of cymothoid, Elthusa splendida, from a museum shark specimen in the East China Sea. The find expands the species' range to almost opposite sides of the globe, with only five previously documented specimens.
The Red Sea climate modeling system provides high-resolution analyses of the region's oceanic and atmospheric processes, revealing connections with global climate patterns. The system helps predict extreme events like oil spills and informs environmental policymaking, renewable energy projects, and flood protection.
Scientists found that repeated strong atmospheric rivers played a crucial role in forming massive holes in sea ice. These holes can influence regional and global ocean circulation, affecting phytoplankton blooms and contributing to global sea-level rise.
A new study examines 12,000 years of sea-level rise and finds that changes in land area and human cultures happened at variable rates, out of step with the prevailing rate of sea-level rise. Researchers warn that future sea-level rise will not always be simple and that human responses will be equally localized.
Researchers propose adding altitude-measuring instruments to existing NOAA buoys to track global sea levels and monitor accelerating sea-rise rates. This approach will provide valuable insights into the effects of climate change on coastal areas.
A new study found that early-arriving endangered Chinook salmon experience an additional 20% mortality due to sea lion predation. The study also showed that the numbers of California sea lions are highest at the mouth of the Columbia River, increasing exposure to predation.
Researchers have found a decline in sea turtle sightings off the coasts of the UK and Ireland over the past few decades. The study suggests that factors such as climate change, prey availability, and environmental disasters may be influencing this trend.
A Rutgers-led team created a model that enables improved sea-level rise projections and could help address climate change threats. The 'emulator' uses artificial intelligence to mimic ice-sheet behavior, providing valuable insights into ice sheet vulnerability through 2150.
Researchers analyzed sediment cores to find natural sea-ice extent variation since last ice age, contrasting with recent decline. Perennial ice in western and central areas persisted even during warm periods, while southeastern part experienced seasonal ice-free conditions.
A team of Penn State researchers has integrated water purification technology into a sea water electrolyzer, which uses an electric current to split apart the hydrogen and oxygen in water molecules. This new method can make it easier to turn wind and solar energy into a storable and portable fuel.
Research reveals that two groups of marine organisms, sea butterflies and sea angels, have survived dramatic global climate change and Earth's most recent mass extinction event. The study found that these pteropods evolved in the early Cretaceous period and likely survived previous episodes of ocean acidification.
A new study reconstructed sea ice transported from the Arctic Ocean through the Fram Strait and into the North Atlantic Ocean over the last 1400 years. The reconstruction suggests that the Little Ice Age was triggered by an exceptionally large outflow of sea ice from the Arctic Ocean in the 1300s.
New research reveals that climate change is exacerbating the decline of sea otters, which in turn are destroying Alaskan kelp forests. The loss of sea otters is allowing sea urchins to overgraze the coralline algae that form the reefs.
Researchers have found that the number of tentacle arms in sea anemones is determined by their food intake, with muscle cells playing a crucial role in this process. This discovery sheds light on how environmental factors can influence morphological changes in organisms.
Researchers have determined that the Bering Sea ice extent is at its most reduced state in the past 5,500 years. The study, published in Science Advances, analyzed a peat core from St. Matthew Island and found that modern sea ice conditions are unprecedentedly low.
After a century of being ignored by scientists, the Black sea spider crab has been re-described by a research team led by Dr Vassily Spiridonov. The team analyzed molecular genetic barcode data to confirm that Macropodia czernjawskii is a distinct species with epibiosis, including a non-indigenous red alga species found in its epibiosis.
Sea level variability is expected to increase with warming, altering tidal cycles and enhancing coastal flooding and erosion risks. Researchers found that nearly all global models agree on an overall tendency for increased variability on seasonal-to-interannual timescales.
Rising sea levels may cause more frequent and devastating river avulsions, altering the course of rivers to the sea. This shift in river dynamics could lead to costly infrastructure failures and increased flood risks for coastal communities.
Researchers used a high-resolution climate model to compare Arctic sea ice conditions during the last interglacial with present-day data. The findings suggest that intense springtime sunshine led to the formation of melt ponds, which contributed to sea ice melt.
A recent satellite survey tracked California's entire coast for over a decade, revealing local hotspots of subsidence in San Francisco, Los Angeles, and Santa Cruz. The study found that these areas will face increased flooding risk as sea levels rise, with rates of subsidence reaching up to 8.7 mm/year.
Researchers studied the decline of Arctic sea ice in 2018, finding it was three times higher than the initial loss during the satellite era. The study links this decline to global atmospheric processes and warns of catastrophic impacts on air temperatures and ocean circulation if the trend continues.
A study examines how sea-level rise and subsidence affect river avulsions on deltas, finding that frequent avulsions occur when rates of these processes match sediment supply. Engineered avulsions may help mitigate climate change effects, but thresholds exist where sediment supply cannot keep up with rising sea levels.
Researchers from UCL and ZSL have discovered a soft coral garden habitat in Greenlandic waters, characterized by cauliflower corals and diverse fauna. The discovery has direct implications for the management of deep-sea trawl fisheries and may lead to protection under UN guidelines.
Researchers found that Adélie penguins in Antarctica prefer less sea ice due to its impact on their foraging habits. With less sea ice, they can dive more easily, reducing competition for prey and increasing their krill catch.
The deep seafloor is a largely unexplored habitat that plays a critical role in the Earth's carbon cycle. Long-term studies at Station M have dramatically changed marine biologists' perceptions of life in the deep sea, revealing dynamic changes and connections between surface and seafloor conditions.
Researchers evaluated 40 climate models focusing on Antarctic sea ice, finding improvements in projections compared to previous models. The study sheds light on dynamics in the Southern Ocean surrounding Antarctica, essential for understanding global climate changes.
According to the study, mangroves will not survive rising sea levels if global carbon emissions are not reduced. Mangroves can survive with rates of sea-level rise under 5mm per year but will stop growing at this pace if rates exceed 6mm/year.
Ancient sediment analysis reveals mangrove ecosystems can survive up to a 7mm per year sea-level rise threshold. Mangroves provide essential ecosystem services but are threatened by rapid sea-level rise, with current rates expected to surpass the survival limit within 30 years.
A study by the University of the Basque Country reveals 12 former coastlines under the sea off the Basque coast, formed due to major climate changes and fluctuations in sea levels. The researchers used advanced technology to create 3D maps of the seabed, showing irregularly distributed rocky platforms that had not been predefined.
A study led by the University of Plymouth found that sea snakes' vision has been modifying genetically over millions of generations, enabling them to adapt to new environments. The research reveals that diving sea snakes share their adaptive properties with some fruit-eating primates.
A new Tulane University study finds that coastal marshes in the Mississippi Delta are experiencing tipping points, where a small increase in sea-level rise leads to widespread submergence. The researchers predict that most marshes will drown in a few centuries once the rate of sea-level rise exceeds a certain threshold.
A new study highlights the need for Indigenous collaboration in managing sea otter populations to improve coexistence between humans and this challenging predator. The study reveals that strengthening Indigenous governance authority and establishing locally designed co-management plans can enable human-otter coexistence.
Scientists have developed a new model for studying developmental biology by creating sea urchins with reduced breeding cycles. The breakthrough uses CRISPR technology to edit genes responsible for pigment production, resulting in albino sea urchins that can thrive in the lab.
The Gidget sea otter genome is now publicly available, revealing low genetic diversity and potentially harmful variation within genes. This provides valuable insights into the evolutionary history and conservation of this threatened species.
A study led by Nanyang Technological University warns that global sea-level rise could exceed 1 meter by 2100 and 5 meters by 2300 if emission targets are not met. The study, which surveyed over 100 climate experts, found stark differences in sea-level projections for low versus high emissions.
A new study reveals that plant materials from Arctic sea ice are incorporated into marine food webs, indicating the importance of sea ice ecosystems. The research shows a transition to more dependence on sea ice materials as coverage decreases, with long-term reserves of organic matter remaining accessible to seafloor animals.
A new study suggests that reducing CO2 emissions rapidly could lead to ice-free years in the Arctic, occurring only occasionally. The research indicates that humans can still determine how often the Arctic Ocean will be ice-free, depending on future emissions levels.
A new study suggests that the Arctic Ocean will likely be ice-free in summer due to high future CO2 emissions. However, rapid reductions in CO2 emissions could lead to occasional ice-free summers even before 2050. The study's findings highlight humanity's impact on the Arctic ecosystem and climate.
A recent study by Jennifer Welsh found that various sea creatures, such as sponges, crabs, and cockles, can remove a significant portion of virus particles from seawater. These findings suggest that non-host organisms play an important role in regulating virus populations in marine environments.
Researchers have documented seasonal migrations of deep-sea fish across the seafloor, linking surface-ocean productivity to observed behavioral patterns. This study provides evidence of cycles of movement in deep-sea fish and suggests reasons for their behaviors, potentially mirroring great migrations on land.
Researchers found a parasite from opossums infecting sea otters along the West Coast, with infected otters in British Columbia's northern Vancouver Island. The study suggests pathogens can travel long distances via water runoff and prey species like clams.
HKU researchers reconstruct water depth changes in Svalbard using fossil Ostracoda, revealing a sudden temperature rise and abrupt sea-level change due to warm Atlantic waters. The study provides the first solid evidence of MWP-1B's relative sea-level change in ice-proximal areas.
Researchers found that sea turtles respond to odors from biofouled plastics in the same way they respond to food odorants. This 'olfactory trap' explains why sea turtles ingest and become entangled in plastic debris. Biofouling, the accumulation of microbes on wet surfaces, is a major factor contributing to this attraction.
The Red Sea's coral reef, critical to the region's ecosystem, is resilient but vulnerable to climate change. The researchers call for UNESCO recognition and coordinated conservation efforts to protect the reef.
A new study by UCF predicts that Canaveral National Seashore will experience the greatest impact from sea level rise and hurricanes, with a loss of about 1% of its loggerhead habitat by 2100. The study used a new method to calculate current and future sea turtle nesting areas, which can help the National Park Service manage resources.
A proposed North Sea dam could protect over 25 million Europeans from the consequences of a predicted sea level rise. The estimated cost of building such a dam is between 250-500 billion euros, which is relatively small compared to the potential costs of inaction.