Not exact matches
Trump's stance on the environment contradicts thousands of
scientists and decades of research, which has linked many observable changes in climate, including rising air and ocean temperatures, shrinking glaciers, and widespread melting of snow and
ice, to an increase in greenhouse gas emissions
from human activities.
The melting adds between 120 and 140 tons of
ice to the ocean, which
scientists say will raise water levels globally anywhere
from 1.33 to 1.5 inches each year.
Seeing these discouraging results, Woodruff and colleague Lonnie Shea, a materials
scientist, suggested suspending individual immature follicles in tiny beads of alginate, a substance derived
from brown algae and commonly used as an
ice cream thickener.
Scientists first thought this water was melting
from surface
ice, but that interpretation is less likely for the slopes near the equator, where the surface is probably too warm for
ice.
Images
from the High Resolution Stereo Camera on Mars Express show raft - like ground structures — dubbed «plates» — that look similar to
ice formations near Earth's poles, according to an international team of
scientists.
Other
scientists have documented true seals using their pawlike forelimbs in stereotypically terrestrial ways, too, such as using the claws to dig out lairs in
ice or uncovering buried fish
from the seafloor.
For glaciers that extend
from low to high elevation, measurements taken at the low end — the glacier's «snout» — may not tell
scientists much about how the same
ice sheet is behaving higher up the mountain.
In addition to such
ice changes — accelerated melting in Greenland, western Antarctica and
from mountain glaciers throughout the world —
scientists have improved their understanding of the atmosphere's workings.
Lancaster University
scientists worked with colleagues
from China and Germany to collect and analyse samples
from ice cores which had been laid down over 30 years, to show how residues of Perfluoroalkyl substances (PFASs) in the environment have changed over time.
A new study by a team of
scientists from the University of Malta and the Institut de Génétique Moléculaire de Montpellier (CNRS / Université de Montpellier) could help develop treatment strategies for a crippling disorder that was the focus of the
Ice Bucket Challenge, the world's largest global social media phenomenon.
From an appendectomy on the Antarctic
ice sheet to the comparative luxury of the new South Pole station,
scientist Vladimir Papitashvili talks about his life's work at the poles
Scientists have proposed that heat emanating outward
from the planet's core may pass through an inner layer of superionic
ice, and through convection, create vortices on the outer layer of ionic water that give rise to local magnetic fields.
Exact numbers are a work in progress The
scientists used a combination of surface elevation data
from satellites and planes between 1978 and 2012 and a GPS network that weighs the
ice sheet like a scale, according to Ohio State.
Atmospheric
scientists from the GEOMAR Helmholtz Centre for Ocean Research Kiel and the Max Planck Institute for Meteorology in Hamburg have now found an explanation that could significantly improve the interpretation of
ice cores.
«The
ice cores obtained through international collaborations were critical to the success of this study in that they allowed us to develop records
from parts of Antarctica not often visited by U.S. - based
scientists,» said co-author Tom Neumann of NASA's Goddard Space Flight Center in Greenbelt, Maryland, who participated in a Norway - U.S. traverse that collected several of the cores used in this study.
Scientists from Rice University and Texas A&M University - Corpus Christi's Harte Research Institute for Gulf of Mexico Studies have discovered that Earth's sea level did not rise steadily but rather in sharp, punctuated bursts when the planet's glaciers melted during the period of global warming at the close of the last
ice age.
Another recommendation was to reduce the size of the expensive - to - operate LC - 130 fleet of
ice - equipped aircraft
from 10 to six; these aircraft are kept busy servicing the stations and ferrying
scientists to research locations.
Although a British team was unsuccessful in its quest to penetrate Lake Ellsworth, a group of Russian
scientists successfully retrieved samples
from Lake Vostok, thousands of kilometers away on the Eastern Antarctic
Ice Sheet.
As the Arctic summers are getting warmer we may see an acceleration of global warming, because reduced sea
ice in the Arctic will remove less CO2
from the atmosphere, Danish
scientists report.
Ever since hikers first spotted the remains of Ötzi the Iceman, as he is known, emerging
from the melting
ice in the Ötztal Alps near the Austrian - Italian border in 1991,
scientists have been working to determine how he died and what he was doing in such a remote spot.
After a glaciologist
from Alaska believed she heard trapped air bubbles escaping the
ice, she teamed with other
scientists from Texas to eavesdrop on bits of melting glacier
ice taken
from Gulkana Glacier in Alaska.
With the help of computer - generated scenery,
scientists act as tour guides through exotic spacescapes — clambering around the surface of a comet, for instance, while describing the supersonic jets of
ice that erupt
from its surface.
For many years, there has been a quest to solve the problem of measuring acidity in the porous annual layers of the
ice and now
scientists from the Niels Bohr Institute have succeeded.
An article in the March issue of Oceanography, authored by
scientists from Cornell and Rutgers universities, points to 2012's unprecedented Arctic sea
ice melt as the root cause of the events that transformed a relatively modest storm into a destructive force (ClimateWire, Sept. 20, 2012).
Recording these temperatures continuously can help
scientists develop a detailed picture of the physics by which the ocean melts the
ice shelves
from below, says oceanographer Laurence Padman of Earth & Space Research in Corvallis, Oregon.
Scientists have drilled into one of the most isolated depths in all of the world's oceans: a hidden shore of Antarctica that sits under 740 meters of
ice, hundreds of kilometers in
from the sea edge of a major Antarctic
ice shelf.
Scientists find translucent fish in a wedge of water hidden under 740 meters of
ice, 850 kilometers
from sunlight
Some
scientists plan to assess the stability of the remaining
ice shelf, others will map the region's seafloor topography and still others want to study the newly exposed ecosystem that's been hidden
from the sun for up to 120,000 years (SN Online: 10/13/17).
Scientists drilling
ice cores out of Greenland have found lead
from fly ash, a byproduct of coal combustion, dating back to the era.
One of the Science co-authors, Peter Huybers, a climate
scientist at Harvard University, says he was pleased by the confirmation — especially because it comes
from a fast - spreading center, where the
ice age signal is more difficult to observe.
«Poor adherence with the Canadian pregnancy prevention guidelines means that Canada, inadvertently, is using pregnancy termination rather than pregnancy prevention to manage fetal risk
from isotretinoin,» states lead author Dr. David Henry, senior
scientist at the Institute for Clinical Evaluative Sciences (
ICES) and executive co-lead of the Canadian Network for Observational Drug Effect Studies (CNODES).
After further analysis of the data, the
scientists found that although a strong El Niño changes wind patterns in West Antarctica in a way that promotes flow of warm ocean waters towards the
ice shelves to increase melting
from below, it also increases snowfall particularly along the Amundsen Sea sector.
The
scientists looked into the hypothesis that soot
from forest fires in China, Siberia and North America could be driving the increased darkening of the
ice sheet.
Scientists have explained Sputnik Planitia's youthful appearance by positing that it is an ancient impact basin — a giant crater filled with thick floes of younger
ice that, driven by heat seeping up
from below, churn and refresh the surface.
Several Russian news outlets are reporting that Russian
scientists have successfully drilled to Antarctica's Lake Vostok, a massive liquid lake cut off
from daylight for 14 million years and buried beneath 2 miles (3.7 kilometers) of
ice.
At the time,
scientists had hints
from satellites, but they weren't sure if the world's major
ice sheets were melting.
Scientists spent a month in Denali National Park in 2013 drilling
ice cores
from the summit plateau of Mt. Hunter.
Scientists are studying
ice from different climate periods in the past to better understand how the
ice sheet might respond in the future.
For decades
scientists have theorized how that
ice might act as an insulator, preserving vestiges of warmth and moisture deep within Pluto and other objects so far
from the sun.
Scientists are interested in knowing more about
ice from the Eemian period, a time
from 115,000 to 130,000 years ago that was about as warm as today.
Yes, Virginia, There Was a Big Bang
Scientists using a radio telescope atop the 10,000 - foot - high Antarctic
ice sheet have detected a 14 - billion - year - old pattern
from the Big Bang.
Scientists have documented this transition before: In 2002, a Rhode Island sized chunk of
ice calved
from a different
ice shelf, Larsen B, along the Antarctic Peninsula (SN: 10/18/14, p. 9).
Nevertheless, some
scientists claim that ratios of oxygen isotopes in marine fossils
from the east coast of the US indicate that the Antarctic
ice sheet melted at least partially during the Pliocene.
Fast - melting Arctic sea
ice has forced some 35,000 Pacific walruses to retreat to the Alaska shoreline,
scientists from several federal agencies said on Wednesday.
Not long ago, it was thought impossible for
ice to remain intact for millions of years:
Scientists assumed it would eventually sublimate, transforming in the frigid, dry air directly
from ice to vapor.
But
scientists increasingly attribute much of the observed grounding line retreat — particularly in West Antarctica — to the influence of warmer ocean water seeping beneath the
ice shelves and lapping against the bases of glaciers, melting the
ice from the bottom up.
Some
scientists speculate that the sun may be entering a prolonged inactive phase, similar to the one that lasted
from 1645 to 1715 and coincided with the «little
ice age» in Europe — although there is no evidence that the sun will rescue us
from global warming.
Scientists theorize the bright objects are pieces of dry
ice that have broken away
from points higher on the slope.
Scientists using evidence
from bison fossils have determined when an
ice - free corridor opened up along the Rocky Mountains during the late Pleistocene.
A team of
scientists melted five samples of
ice from Antarctica in hopes of reviving the oldest known frozen bacteria — millions of years older than any previously brought to life.