Popular Sea Ice News and Current Events

Popular Sea Ice News and Current Events, Sea Ice News Articles.
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Alligators on the beach? Killer whales in rivers? Get used to it
Sightings of alligators and other large predators in places where conventional wisdom says they 'shouldn't be' have increased in recent years, in large part because local populations, once hunted to near-extinction, are rebounding. A new Duke-led paper finds that far from being outliers, these sightings signify the return of highly adaptable predators to prime hunting grounds they occupied long ago -- a trend that opens new opportunities for future conservation. (2018-05-07)

Sources and sinks
For the entire history of our species, humans have lived on a planet capped by a chunk of ice at each pole. But Earth has been ice-free for about 75 percent of the time since complex life first appeared. This variation in background climate, between partly glaciated and ice-free, has puzzled geologists for decades. (2019-03-14)

From sea to lab
With its vast numbers of different lifeforms, the sea is a largely unexplored source of natural products that could be starting points for new pharmaceuticals, such as the antitumor drugs trabectedin and lurbinectedin. Because only tiny amounts can be obtained from sea organisms, synthetic production is necessary. In the journal Angewandte Chemie, scientists have introduced a new, efficient synthetic route for these two drugs. A key step is the light-controlled activation of a carbon-hydrogen bond. (2019-02-18)

Sloppy sea urchins
Marine scientists discover an important, overlooked role sea urchins play in the kelp forest ecosystem. (2019-07-10)

Climate change prompts Alaska fish to change breeding behavior
A new University of Washington study finds that one of Alaska's most abundant freshwater fish species is altering its breeding patterns in response to climate change, which could impact the ecology of northern lakes that already acutely feel the effects of a changing climate. (2017-01-18)

NASA visualizes the dance of a melting snowflake
NASA has produced the first three-dimensional numerical model of melting snowflakes in the atmosphere. Developed by scientist Jussi Leinonen of NASA's Jet Propulsion Laboratory in Pasadena, California, the model provides a better understanding of how snow melts can help scientists recognize the signature in radar signals of heavier, wetter snow -- the kind that breaks power lines and tree limbs -- and could be a step toward improving predictions of this hazard. (2018-03-29)

Was that climate change?
A new four-step 'framework' aims to test the contribution of climate change to record-setting extreme weather events. (2017-04-24)

Researchers study how to improve southern sea otter survival
Analysis of 13 years of demographic and genetic data from 1,006 sea otters to assess multiple effective population size estimators, as well as temporal trends in genetic diversity and population genetic structure, show a need for development of new delisting criteria for the southern sea otter. (2018-05-01)

NASA catches Tropical Storm Tapah by the tail
Tropical Storm Tapah has a huge 'tail' on NASA satellite imagery. NASA's Terra satellite captured an image of the northwestern Pacific Ocean storm that revealed a large band of thunderstorms that resemble a large tail. The NASA imagery also indicated that the storm is getting better organized. (2019-09-20)

Deep-sea fish reveals twilight trick
A new type of cell has been found in the eye of a deep-sea fish, and scientists say the discovery opens a new world of understanding about vision in a variety of light conditions. University of Queensland scientists found the new cell type in the deep-sea pearlside fish (Maurolicus spp.), which have an unusual visual system adapted for twilight conditions. (2017-11-08)

NASA satellites reveal major shifts in global freshwater
NASA Satellites Reveal Major Shifts in Global Freshwater (NASA Headquarters). In a first-of-its-kind study, scientists have combined an array of NASA satellite observations of Earth with data on human activities to map locations where freshwater is changing around the globe and to determine why. (2018-05-16)

New research suggests toward end of Ice Age, human beings witnessed fires larger than dinosaur killers
12,800 years ago, thanks to fragments of a comet, humans saw an astonishing 10 percent of the Earth's land surface, or about 10 million square kilometers, consumed by fires. (2018-02-01)

Reconstruction of major North Atlantic circulation system shows weakening
Rising levels of carbon dioxide in the atmosphere have affected one of the global ocean's major circulation systems, the Atlantic Meridional Overturning Circulation (AMOC), slowing the redistribution of heat in the North Atlantic Ocean. The resulting changes have been felt along the Northeast US Shelf and in the Gulf of Maine, which has warmed 99 percent faster than the global ocean over the past ten years, impacting distributions of fish and other species and their prey. (2018-04-11)

Corals in Singapore likely to survive sea-level rise: NUS study
Marine scientists from the National University of Singapore found that coral species in Singapore's sedimented and turbid waters are unlikely to be impacted by accelerating sea-level rise (2019-07-01)

Landscape evolution and hazards
Landscapes are formed by a combination of uplift and erosion. Uplift from plate tectonics raises the land surface; erosion by rivers and landslides wears the land surface back down. In this study, Georgina L. Bennett and colleagues examine the interplay of uplift and erosion along the coast range of Northern California to understand how the modern topography is built. (2016-03-31)

Kidnapping in the Antarctic animal world?
Pteropods or sea snails, also called sea angels, produce chemical deterrents to ward off predators, and some species of amphipods take advantage of this by carrying pteropods piggyback to gain protection from their voracious predators. (2018-09-10)

GPM satellite finds heavy rainfall on northern side of typhoon Lingling
The Global Precipitation Measurement mission or GPM core satellite analyzed the rainfall rates happening within Typhoon Lingling and found the heaviest precipitation on its northern side. (2019-09-06)

Mars is emerging from an ice age
Radar measurements of Mars' polar ice caps reveal that the mostly dry, dusty planet is emerging from an ice age, following multiple rounds of climate change. (2016-05-26)

Slow, steady waves keep brain humming
Very slow brain waves, long considered an artifact of brain scanning techniques, may be more important than anyone had realized. Researchers at Washington University School of Medicine in St. Louis have found that very slow waves are directly linked to state of consciousness and may be involved in coordinating activity across distant brain regions. (2018-03-29)

Sea floor uplift after last ice age causes methane release in the Arctic today
Present-day release of methane from an area of the Arctic Ocean is an effect of the uplift of the sea floor, rather than anthropogenic ocean warming, a new study in Nature Communications states. (2018-02-06)

In Antarctic dry valleys, early signs of climate change-induced shifts in soil
In a study spanning two decades, a team of researchers found declining numbers of soil fauna, nematodes and other animal species in the McMurdo Dry Valleys, one of the world's driest and coldest deserts. (2018-01-05)

Increasing loss of spring sea ice taxes polar bear metabolism
Tracking polar bears during the spring -- their prime hunting season, when sea ice conditions should be ideal -- reveals that in recent years, many bears are expending notably more energy than they are consuming. (2018-02-01)

Update on the Larsen-C iceberg breakaway
Since an iceberg four times the size of London broke free earlier this month, scientists have continued to track its progress using satellites. Their observations show the Larsen-C story might not be over yet. (2017-08-02)

How the brain might compensate stress during learning
When people have to assess a situation within seconds, it helps them to draw on learned categories. Psychologists from the Ruhr-Universit├Ąt Bochum examined with the help of electroencephalography (EEG) how well category-learning works in a stressful episode. They published their research on a mechanism, the brain may compensate stress with, in the Journal of Cognitive Neuroscience. (2018-03-08)

Unraveling a major cause of sea ice retreat in the Arctic Ocean
Quantitative analysis has evidenced the acceleration system of melting ice: dark water surfaces absorb more heat than white ice surfaces, thus melting ice and making more water surfaces in the Arctic Ocean. (2017-09-06)

Thought Antarctica's biodiversity was doing well? Think again
Antarctica and the Southern Ocean are not in better environmental shape than the rest of the world. (2017-04-25)

Deep impact: Deep-sea wildlife more vulnerable to extinction than first thought
The existence of the unusual yeti crabs (Kiwaidae) -- a family of crab-like animals whose hairy claws and bodies are reminiscent of the abominable snowman -- since 2005, but already their future survival could be at risk. New Oxford University research suggests that past environmental changes may have profoundly impacted the geographic range and species diversity of this family. The findings indicate that such animals may be more vulnerable to the effects of human resource exploitation and climate change than initially thought. (2018-03-22)

The sea anemone, an animal that hides its complexity well
Despite its apparent simplicity -- a tube-like body topped with tentacles -- the sea anemone is actually a highly complex creature. Scientists from the Institut Pasteur, in collaboration with the CNRS, have just discovered over a hundred different cell types in this small marine invertebrate as well as incredible neuronal diversity. This surprising complexity was revealed when the researchers built a real cell atlas of the animal. (2018-07-09)

Arctic wintertime sea ice extent is among lowest on record
Sea ice in the Arctic grew to its annual maximum extent last week, and joined 2015, 2016 and 2017 as the four lowest maximum extents on record, according to scientists at the NASA-supported National Snow and Ice Data Center (NSIDC) and NASA. (2018-03-23)

Shifting bird distribution indicates a changing Arctic
Shifts in the distribution of Spectacled Eiders, a predatory bird at the top of the Bering Sea's benthic food web, indicate possible changes in the Arctic's marine ecosystem, according to new research in The Condor: Ornithological Applications. (2016-06-01)

Arctic Ocean methane does not reach the atmosphere
250 methane flares release the climate gas methane from the seabed and into the Arctic Ocean. During the summer months this leads to an increased methane concentration in the ocean. But surprisingly, very little of the climate gas rising up through the sea reaches the atmosphere. (2016-05-27)

Viruses -- lots of them -- are falling from the sky
An astonishing number of viruses are circulating around the Earth's atmosphere -- and falling from it -- according to new research from scientists in Canada, Spain and the US. The study marks the first time scientists have quantified the viruses being swept up from the Earth's surface into the free troposphere, beyond Earth's weather systems but below the stratosphere where jet airplanes fly. The viruses can be carried thousands of kilometres there before being deposited back onto the Earth's surface. (2018-02-06)

Device may save seabirds from the dangers of fishing gear
A new Animal Conservation article summarizing 4 years of study found that a device called the Hookpod can help prevent birds from being inadvertently caught by fishermen. (2017-12-20)

Infrared NASA imagery shows development of Tropical Depression 31W
NASA's Aqua satellite provided infrared imagery of the latest tropical cyclone in the South China Sea. (2017-11-17)

UK chalk-stream salmon genetically unique
Salmon from the chalk streams of southern England are genetically unique, researchers have discovered. (2018-01-30)

Ocean floor geysers warm flowing sea water
An international team of earth scientists report movement of warmed sea water through the flat, Pacific Ocean floor off Costa Rica. The movement is greater than that off midocean volcanic ridges. The finding suggests possible marine life in a part of the ocean once considered barren. (2008-09-22)

Melting of east Antarctic ice sheet could cripple major US cities
Instability of the East Antarctic Ice Sheet signals increased risk of rising sea levels. (2017-12-13)

Century of data shows sea-level rise shifting tides in Delaware, Chesapeake bays
The warming climate is expected to affect coastal regions worldwide as glaciers and ice sheets melt, raising sea level globally. For the first time, an international team has found evidence of how sea-level rise already is affecting high and low tides in both the Chesapeake and Delaware bays, two large estuaries of the eastern United States. (2018-01-24)

Birth of a storm in the Arabian Sea validates climate model
Researchers from Princeton University and NOAA report in the journal Nature Climate Change that extreme cyclones that formed in the Arabian Sea for the first time in 2014 are the result of global warming and will likely increase in frequency. Their model showed that the burning of fossil fuels since 1860 would lead to an increase in the destructive storms in the Arabian Sea by 2015, marking one of the first times that modeled projections have synchronized with real observations of storm activity. (2017-12-06)

Rising temperatures turning major sea turtle population female
Scientists have used a new research approach to show that warming temperatures are turning one of the world's largest sea turtle colonies almost entirely female, running the risk that the colony cannot sustain itself in coming decades, newly published research concludes. (2018-01-11)

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