On a Divided Mount Everest, Climate Cooperation Is Being Tested

China and Nepal have both established unmanned weather stations high on the world’s tallest mountain.

#china, #glaciers, #global-warming, #ice, #lorius-claude-1932, #mount-everest, #mountaineering, #mountains, #national-geographic-society, #nepal, #research, #rolex-sa, #tibet

‘Wholly Unexpected’: These Polar Bears Can Survive With Less Sea Ice

The overall threat to the animals from climate change remains, but a new finding suggests that small numbers might survive for longer as the Arctic warms.

#arctic-regions, #global-warming, #greenhouse-gas-emissions, #ice, #laidre-kristin-l, #polar-bears, #research, #science-journal

Sports in Norway, Like Skiing and Bobsledding, Face Threat From Warming Arctic

Skiing, hiking and dogsledding will never be the same in Svalbard, Norway, which has warmed more than twice as quickly as the rest of the Arctic. The islands may be isolated, but the changes aren’t.

#arctic-regions, #california-institute-of-technology, #content-type-personal-profile, #glaciers, #global-warming, #ice, #longyearbyen-norway, #norway, #skiing, #snowmobiles, #svalbard-and-jan-mayen-norway

Why Did Two Antarctic Ice Shelves Fail? Scientists Say They Now Know.

The collapse of the two huge ice shelves was most likely triggered by vast plumes of warm air from the Pacific, researchers have found.

#antarctic-regions, #global-warming, #greenhouse-gas-emissions, #ice, #research

Climate Change Is Hurting Penguins Unevenly in Antarctica

The western side of the Antarctic Peninsula has seen sharp declines in Adélie penguin populations in recent decades. Things look better on the eastern side. Take a tour.

#antarctic-regions, #global-warming, #greenhouse-gas-emissions, #ice, #krill, #oceans-and-seas, #penguins, #your-feed-animals, #your-feed-photojournalism, #your-feed-science

Ice Volcanoes Reshape Pluto and Hint at a Hidden Ocean

Signs of cryovolcanic activity on the dwarf planet in the recent geological past must be driven by an underground body of water, a study suggests.

#ice, #nature-communications-journal, #pluto-dwarf-planet, #research, #space-and-astronomy, #volcanoes

Sea Ice Around Antarctica Reaches a Record Low

The drop surprised scientists, and may help them understand more about climate change affecting Antarctica and its waters.

#antarctic-regions, #global-warming, #greenhouse-gas-emissions, #ice, #oceans-and-seas, #southern-ocean, #weddell-sea

The Search Has Begun for an Antarctic Pioneer’s Lost Ship

Explorers have started combing the Weddell Sea for one of the most revered ships in the history of polar exploration, Ernest Shackleton’s Endurance, which sank in 1915.

#antarctic-regions, #exploration-and-explorers, #global-warming, #ice, #research, #shackleton-ernest, #shipwrecks-historic, #south-georgia-island, #weddell-sea

Water Supplies From Glaciers May Peak Sooner Than Anticipated

New satellite mapping of the world’s mountain ice suggests Earth’s glaciers may contain less water than previously thought.

#andes-mountains, #antarctic-regions, #china, #dartmouth-college, #glaciers, #global-warming, #greenhouse-gas-emissions, #greenland, #himalayas, #ice, #india, #nature-geoscience-journal, #norway, #pakistan, #university-of-oslo, #water

A Tenacious Winter Storm Now Has the Northeast in Its Sights

Buffalo could receive a foot of snow on Friday, but New York City is expected to be spared the worst. Icy conditions may make commutes difficult in Boston and Portland, Maine.

#ice, #new-england-states-us, #new-york-state, #snow-and-snowstorms

Scalloped iceberg sculptures occur due to the weirdness of water

Scalloped iceberg sculptures occur due to the weirdness of water

Enlarge (credit: Scott Weady)

You would think that understanding something as common as melting ice would be relatively easy. But water is a peculiar substance, and that makes it very hard to predict how ice will melt. A lot of that unpredictability has been attributed to water flowing around the ice (as seen in sea currents flowing around icebergs, for example).

Still, understanding melting is required to better predict things like the breakup of sea ice. So a group of physicists turned the fluid dynamics up to 11 and have shown that melting ice is weird, even when there are no currents.

It only does that to annoy you

The rules that govern the Universe are relatively simple. However, to ensure that the Universe is sufficiently maddening, those simple rules were crafted to produce fluid dynamics and water. Fluid dynamics is the study of how fluids flow.

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#computational-fluid-dynamics, #fluid-dynamics, #ice, #science, #water

An Extraordinary Iceberg Is Gone, but Not Forgotten

A chunk of Antarctic ice that was one of the biggest icebergs ever seen has met its end near South Georgia. Scientists will be studying its effects on the ecosystem around the island for some time.

#a68a, #antarctic-regions, #global-warming, #greenhouse-gas-emissions, #ice, #south-georgia-island

Study: Leidenfrost effect occurs in all three water phases: Solid, liquid, and vapor

Slow-motion video of boiling ice, a research project of the Nature-Inspired Fluids and Interfaces Lab at Virginia Tech.

Dash a few drops of water onto a very hot, sizzling skillet and they’ll levitate, sliding around the pan with wild abandon. Physicists at Virginia Tech have discovered that this can also be achieved by placing a thin, flat disk of ice on a heated aluminum surface, according to a new paper published in the journal Physical Review Fluids. The catch: there’s a much higher critical temperature that must be achieved before the ice disk will levitate.

As we’ve reported previously, in 1756, a German scientist named Johann Gottlob Leidenfrost reported his observation of the unusual phenomenon. Normally, he noted, water splashed onto a very hot pan sizzles and evaporates very quickly. But if the pan’s temperature is well above water’s boiling point, “gleaming drops resembling quicksilver” will form and will skitter across the surface. It’s called the “Leidenfrost effect” in his honor.

In the ensuing 250 years, physicists came up with a viable explanation for why this occurs. If the surface is at least 400 degrees Fahrenheit (well above the boiling point of water), cushions of water vapor, or steam, form underneath them, keeping them levitated. The Leidenfrost effect also works with other liquids, including oils and alcohol, but the temperature at which it manifests will be different. 

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#fluid-dynamics, #ice, #leidenfrost-effect, #phase-transitions, #physics, #science

Winter Snow Storm Updates: States Brace for Dangerous Conditions

The storm, which brought snow to the South, was expected to chug along the Appalachians and into the Northeast on Sunday. In the Carolinas, power failures were likely from damaging ice.

#floods, #ice, #mid-atlantic-states-us, #northeastern-states-us, #power-failures-and-blackouts, #rain, #snow-and-snowstorms, #southern-states-us, #weather, #winter-season

Road Salt Works. But It’s Also Bad for the Environment.

The chemical is effective at keeping roads free of snow and ice, but it also has damaging consequences, according to a growing body of research.

#environment, #frontiers-in-ecology-and-the-environment-journal, #ice, #institute-of-ecosystem-studies, #lakes, #roads-and-traffic, #salt, #traffic-accidents-and-safety, #water, #water-pollution

Trends in Arctic Report Card: ‘Consistent, Alarming and Undeniable’

The changes happening at the top of the planet could unfold elsewhere in the years to come, scientists report.

#american-geophysical-union, #arctic-regions, #global-warming, #greenhouse-gas-emissions, #ice, #national-snow-and-ice-data-center

Bearing Witness to Svalbard’s Fragile Splendor

To visitors, the Norwegian archipelago can seem both ethereal and eternal. But climate change all but guarantees an eventual collapse of its vulnerable ecosystem.

#arctic-ocean, #barents-sea, #carbon-dioxide, #global-warming, #ice, #norway, #polar-bears, #svalbard-and-jan-mayen-norway, #travel-and-vacations

As Earth Warms, Human History Is Melting Away

Climate change is revealing long-frozen artifacts and animals to archaeologists. But the window for study is slender and shrinking.

#alaska, #alps-mountains, #archaeology-and-anthropology, #arctic-regions, #audio-neutral-immersive, #audio-neutral-informative, #austria, #chile, #endangered-and-extinct-species, #europe, #glaciers, #global-warming, #ice, #indigenous-people, #mammoths-animals, #mongolia, #norway, #paleontology, #siberia, #university-of-aberdeen, #yakutia-russia, #your-feed-animals, #your-feed-science

How Maori Arrival in New Zealand Was Frozen in Antarctic Ice

Ice cores drilled from the southern continent preserved a signal of the peopling of islands thousands of miles away.

#antarctic-regions, #ice, #maori, #nature-journal, #new-zealand, #research, #wildfires, #your-feed-science

Arctic Sea Ice Hits Annual Low, but It’s Not as Low as Recent Years

Cool conditions north of Alaska in August reduced melting, scientists say, but the overall is still downward.

#arctic-regions, #global-warming, #greenhouse-gas-emissions, #ice

The Moon Crater Where NASA Will Send Its Viper Rover

The agency picked the Nobile crater near the lunar south pole to seek frozen water that will be essential to future astronaut missions.

#astrobotic-technology-inc, #ice, #moon, #national-aeronautics-and-space-administration, #robots-and-robotics, #rocket-science-and-propulsion, #space-and-astronomy

Unraveling the Mysteries Hidden in Vast Glacier Caves

A group of scientists and adventure athletes are venturing into icy labyrinths to study their relationships with glacial melting and climate change.

#alaska, #caves-and-caverns, #geography, #geology, #glaciers, #global-warming, #greenland, #ice, #mount-everest, #mountaineering, #nepal, #svalbard-and-jan-mayen-norway

What Does It Mean for a Whole Nation to Become Uninhabitable?

“It’s changing quite rapidly,” says a hunter in Canada. “And I’m not old at all. I’m 31.”

#arctic-regions, #canada, #china, #dunedin-new-zealand, #fish-and-other-marine-life, #global-warming, #ice, #nanjing-china, #north-pole, #norway, #polar-bears, #seals-animals-and-sealing, #tuvalu, #walruses

Electric cars have much lower life cycle emissions, new study confirms

An

Enlarge / If we’re serious about decarbonizing, the internal combustion engine has to go by 2030-2035, according to a new study. (credit: Reinhard Krull/EyeEm/Getty Images)

If you listen to electric vehicle naysayers, switching to EVs is pointless because even if the cars are vastly more efficient than ones that use internal combustion engines—and they are—that doesn’t take into account the amount of carbon required to build and then scrap them. Well, rest easy because it’s not true. Today in the US market, a medium-sized battery EV already has 60–68 percent lower lifetime carbon emissions than a comparable car with an internal combustion engine. And the gap is only going to increase as we use more renewable electricity.

That finding comes from a white paper (pdf) published by Georg Bieker at the International Council on Clean Transportation. The comprehensive study compares the lifetime carbon emissions, both today and in 2030, of midsized vehicles in Europe, the US, China, and India, across a wide range of powertrain types, including gasoline, diesel, hybrid EVs (HEVs), plug-in hybrid EVs (PHEVs), battery EVs (BEVs), and fuel cell EVs (FCEVs). (The ICCT is the same organization that funded the research into VW Group’s diesel emissions.)

The study takes into account the carbon emissions that result from the various fuels (fossil fuels, biofuels, electricity, hydrogen, and e-fuels), as well as the emissions that result from manufacturing and then recycling or disposing of vehicles and their various components. Bieker has also factored in real-world fuel or energy consumption—something that is especially important when it comes to PHEVs, according to the report. Finally, the study accounts for the fact that energy production should become less carbon-intensive over time, based on stated government objectives.

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#battery-evs, #bev, #cars, #decarbonization, #electric-vehicles, #gasoline, #gasoline-ban, #hev, #hybrids, #icct, #ice, #internal-combustion-engines, #international-council-on-clean-transportation, #phev, #plug-in-hybrid-ev, #plug-ins

Iceberg Splits From Antarctica, Becoming World’s Largest

The iceberg broke off from the edge of the Ronne Ice Shelf into the Weddell Sea this week, researchers said.

#antarctic-regions, #glaciers, #global-warming, #ice, #national-ice-center, #oceans-and-seas, #research

Emissions Cuts Could Drop the Impact of Melting Ice on Oceans by Half

A new study said that limiting warming to 1.5 degrees Celsius could reduce sea level rise from melting ice sheets from about 10 inches to about five by 2100.

#global-warming, #greenhouse-gas-emissions, #ice, #oceans-and-seas

How ICE’s Mishandling of Covid-19 Fueled Outbreaks Around the Country

To date, Immigration and Customs Enforcement has reported over 12,000 virus cases. Our investigation found that the impact of infection extended beyond U.S. detention centers.

#coronavirus-2019-ncov, #ice, #immigration-detention

Icing Muscle Injury Ineffective, Study Says

Icing muscles after strenuous exercise is not just ineffective, it could be counterproductive, a new study in mice suggests.

#exercise, #ice, #journal-of-applied-physiology, #mice, #muscles, #sports-injuries

Hunting Ghost Particles Beneath the World’s Deepest Lake

A neutrino-spotting telescope beneath Russia’s frozen Lake Baikal in Russia is close to delivering scientific results after four decades of setbacks.

#domogatski-grigori-v, #ice, #lake-baikal-russia, #neutrinos, #physics, #research, #russia, #siberia, #space-and-astronomy, #stars-and-galaxies, #telescopes-and-observatories

How to Walk Safely in the Snow, Ice and Slush

Walk like a penguin: Turn your feet slightly outward and take short, flat-footed steps.

#content-type-service, #falls, #ice, #shoes-and-boots, #snow-and-snowstorms, #winter-season

What a Texas Plumber Faces Now: A State Full of Burst Pipes

Since a winter storm and hard freeze swept through the state last week, knocking out power and heat, homeowners have swamped plumbers with urgent repair calls.

#bellaire-tex, #calazans-randy, #cinco-ranch-houston-tex, #houston-tex, #ice, #plumbing, #power-failures-and-blackouts, #real-estate-and-housing-residential, #snow-and-snowstorms, #texas, #water

Walking (and Skating) on Thin Ice, Some in Europe Paid the Price

Temperatures that had not been seen in years brought out the playful side of people across the continent. A few who took to icy canals and ponds needed rescuing.

#accidents-and-safety, #amsterdam-netherlands, #berlin-germany, #europe, #ice, #ice-skating, #snow-and-snowstorms

‘Icebound’ Takes Us Back to the Arctic, in All Its Terror and Splendor

Andrea Pitzer’s new book resurrects the story of William Barents’s 16th-century expeditions to the Arctic.

#arctic-regions, #books-and-literature, #exploration-and-explorers, #ice, #icebound-shipwrecked-at-the-edge-of-the-world-book, #pitzer-andrea

Climate Change Is Making Winter Ice More Dangerous

A new study has found that cold-weather drownings are increasing sharply in warmer parts of the Northern Hemisphere.

#canada, #drownings, #environment, #global-warming, #ice, #ice-fishing, #japan, #plos-one-journal, #research, #united-states, #winter-season

Iceberg Headed for Sub-Antarctic Island Could Threaten Wildlife

The iceberg, known as A68a, broke apart from the Antarctic Peninsula in 2017 and has been drifting ever since.

#animal-behavior, #antarctic-regions, #british-antarctic-survey, #ice, #iceberg-a68a, #icebergs, #penguins, #seals-animals-and-sealing, #south-georgia-island, #southern-ocean

Oklahoma Ice Storms Leave Thousands Without Power on Eve of Early Voting

Tree limbs are breaking under the weight of an unseasonable ice storm, downing power lines and cutting off electricity to nearly 375,000 households and businesses across the state.

#ice, #oge-energy-corporation, #oklahoma, #oklahoma-city-okla, #power-failures-and-blackouts

There’s Water and Ice on the Moon, and in More Places Than NASA Once Thought

Future astronauts seeking water on the moon may not need to go into the most treacherous craters in its polar regions to find it.

#ice, #moon, #national-aeronautics-and-space-administration, #nature-astronomy-journal, #research, #space-and-astronomy, #telescopes-and-observatories, #water

Witnessing Peru’s Enduring, if Altered, Snow Star Festival

Rising temperatures and melting glaciers have changed key aspects of the age-old Peruvian festival of Qoyllur Rit’i. Still, the celebrations persist.

#andes-mountains, #cuzco-peru, #glaciers, #global-warming, #ice, #incas, #peru, #roman-catholic-church, #travel-and-vacations

Melting Ice Reveals Mummified Penguins in Antarctica

Birds that appeared “freshly dead” near an Italian research base turned out to be centuries old.

#antarctic-regions, #emslie-steven, #geology-journal, #ice, #mummies-and-mummification, #penguins, #your-feed-animals, #your-feed-science

Arctic Sea Ice Reaches a Low, Just Missing Record

Only 2012 had less sea ice coverage, scientists say, as climate change takes its toll in the region.

#arctic-ocean, #arctic-regions, #global-warming, #ice, #national-snow-and-ice-data-center, #oceans-and-seas

How to Ship a Vaccine at –80°C, and Other Obstacles in the Covid Fight

Developing an effective vaccine is the first step. Then comes the question of how to deliver hundreds of millions of doses that may need to be kept at arctic temperatures.

#astrazeneca-plc, #biontech-se, #carbon-dioxide, #centers-for-disease-control-and-prevention, #corning-inc, #coronavirus-2019-ncov, #fedex-corporation, #ice, #moderna-inc, #pfizer-inc, #shortages, #united-parcel-service-inc, #vaccination-and-immunization

Loss of Greenland Ice Sheet Reached a Record Last Year

The ice loss in 2019 was more than twice the annual average since 2003, scientists said.

#communications-and-environment-journal, #global-warming, #greenland, #ice

Trump admin caves to Harvard and MIT, won’t deport online-only students

A student visa stamped with the word

Enlarge (credit: Getty Images | Motortion)

The Trump administration has rescinded a controversial policy that could have forced the deportation of foreign students who attend colleges that aren’t offering in-person classes during the coronavirus pandemic.

As we reported last week, Harvard University and the Massachusetts Institute of Technology sued the Trump administration to block the policy issued by US Immigration and Customs Enforcement (ICE). Under the policy change announced July 6, foreign students with nonimmigrant (F-1 and M-1) visas would have had to leave the United States or transfer to different schools that offer in-person classes.

But US officials agreed to rescind the new policy in a settlement with Harvard and MIT, as revealed today at a hearing on the case at US District Court for the District of Massachusetts. “At a short hearing Tuesday afternoon, US District Judge Allison Burroughs confirmed that a settlement had been reached,” The Wall Street Journal reported. “She said the government would rescind the policy, withdraw an FAQ detailing the rule and return to the status quo of guidance issued in the spring.”

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#harvard, #ice, #mit, #policy, #student-visas, #trump-administration

The Best Drinks in Life Are Frozen

Slushy, boozy cocktails are perfect year-round. You may not even need to pull out a blender.

#alcoholic-beverages, #cocktails-and-mixed-drinks, #cooking-and-cookbooks, #ice

Harvard, MIT sue Trump admin to block deportation of online-only students

A student visa with the word

Enlarge (credit: Getty Images | Motortion)

Harvard University and the Massachusetts Institute of Technology today sued the Trump administration to block an action that forces foreign students with nonimmigrant visas to leave the United States or transfer to different schools that offer in-person classes. The schools’ complaint, filed in US District Court for the District of Massachusetts, asks for a temporary restraining order and permanent injunction preventing the administration from enforcing the new policy issued by US Immigration and Customs Enforcement (ICE).

In the complaint, Harvard and MIT said:

By all appearances, ICE’s decision reflects an effort by the federal government to force universities to reopen in-person classes, which would require housing students in densely packed residential halls, notwithstanding the universities’ judgment that it is neither safe nor educationally advisable to do so, and to force such a reopening when neither the students nor the universities have sufficient time to react to or address the additional risks to the health and safety of their communities. The effect—and perhaps even the goal—is to create as much chaos for universities and international students as possible.

The ICE policy will be especially problematic for Harvard and MIT students from certain countries, such as “Syria, where civil war and an ongoing humanitarian crisis make Internet access and study all but impossible,” the lawsuit said. “Others come from Ethiopia, where the government has a practice of suspending all Internet access for extended periods, including presently, starting on June 30, 2020.”

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#f-1-visas, #harvard, #ice, #mit, #policy, #trump-administration

Historic Arctic Heat Wave Roasts Siberia

Wildfires are spreading. The mosquitoes are ravenous. People are shielding their windows from the midnight sun with foil and blankets.

#ice, #oceans-and-seas, #russia, #siberia, #temperature, #wildfires

The Iciest Waters Around Antarctica Are Less Icy

An unusual combination of events caused the Weddell Sea to lose more sea ice than in recent years.

#antarctic-regions, #british-antarctic-survey, #environment, #geophysical-research-letters-journal, #global-warming, #ice

Antarctica vs. Science

For researchers using delicate, one-of-a-kind equipment, the extreme conditions at the bottom of the planet pose special challenges.

#accidents-and-safety, #antarctic-regions, #engineering-and-engineers, #ice, #meteors-and-meteorites, #research, #science-and-technology, #south-pole, #your-feed-science

Reisende aus Zug geholt – Corona-Angst im ICE

Reisende aus Zug geholt: Corona-Angst im ICE! Aufregung im IC 2406 von Köln nach Hamburg! Zugbegleiter bemerkten plötzlich eine Reisende mit Corona-Symptomen.
Foto: Sebastian Peters

#coronavirus, #deutsche-bahn, #hamburg, #hamburg-regional-news, #ice, #mers-coronavirus, #viren

On Wintry Runs, Finding a Room of My Own

When I go running in slush and snow, ideas can break loose and float to the surface like little ice floes.

#ice, #running, #sneakers, #snow-and-snowstorms, #winter-season, #writing-and-writers