Snow and Avalanches News -- ScienceDaily //www.koonmotors.com/news/earth_climate/snow_and_avalanches/ Learn about snowfall and avalanches. Read research on snow and ice composition and more. en-us Wed, 06 Sep 2023 14:54:51 EDT Wed, 06 Sep 2023 14:54:51 EDT 60 Snow and Avalanches News -- ScienceDaily //www.koonmotors.com/images/scidaily-logo-rss.png//www.koonmotors.com/news/earth_climate/snow_and_avalanches/ For more science news, visit ScienceDaily. Blowing snow contributes to Arctic warming //www.koonmotors.com/releases/2023/09/230904133143.htm Atmospheric scientists have discovered abundant fine sea salt aerosol production from wind-blown snow in the central Arctic, increasing seasonal surface warming. Mon, 04 Sep 2023 13:31:43 EDT //www.koonmotors.com/releases/2023/09/230904133143.htm Antarctic ice shelves thinner than previously thought //www.koonmotors.com/releases/2023/09/230901124054.htm As global ice dams begin to weaken due to warming temperatures, a new study suggests that prior attempts to evaluate the mass of the huge floating ice shelves that line the Antarctic ice sheet may have overestimated their thickness. Fri, 01 Sep 2023 12:40:54 EDT //www.koonmotors.com/releases/2023/09/230901124054.htm Loss of Antarctic sea ice causes catastrophic breeding failure for emperor penguins //www.koonmotors.com/releases/2023/08/230824110830.htm 皇帝penguin colonies experienced unprecedented breeding failure in a region of Antarctica where there was total sea ice loss in 2022. The discovery supports predictions that over 90% of emperor penguin colonies will be quasi-extinct by the end of the century, based on current global warming trends. Thu, 24 Aug 2023 11:08:30 EDT //www.koonmotors.com/releases/2023/08/230824110830.htm Thinning ice sheets may drive sharp rise in subglacial waters //www.koonmotors.com/releases/2023/08/230821153207.htm A new study shows that water underneath glaciers may surge due to thinning ice sheets -- a dangerous feedback cycle that could increase glacial melt, sea level rise, and biological disturbances. Mon, 21 Aug 2023 15:32:07 EDT //www.koonmotors.com/releases/2023/08/230821153207.htm Scientists say deepening Arctic snowpack drives greenhouse gas emissions //www.koonmotors.com/releases/2023/08/230816134647.htm Human-caused climate change is shortening the snow cover period in the Arctic. But according to new research led by Earth system scientists, some parts of the Arctic are getting deeper snowpack than normal, and that deep snow is driving the thawing of long-frozen permafrost carbon reserves and leading to increased emissions of greenhouse gasses like carbon dioxide and methane. Wed, 16 Aug 2023 13:46:47 EDT //www.koonmotors.com/releases/2023/08/230816134647.htm Could artificially dimming the sun prevent ice melt? //www.koonmotors.com/releases/2023/08/230811115442.htm With methods of so-called geoengineering, the climate could theoretically be artificially influenced and cooled. Researchers have now investigated whether it would be possible to prevent the melting of the West Antarctic ice sheet by artificially 'dimming the sun'. The results show that artificial influence does not work without decarbonization and entails high risks. Fri, 11 Aug 2023 11:54:42 EDT //www.koonmotors.com/releases/2023/08/230811115442.htm New Antarctic extremes 'virtually certain' as world warms //www.koonmotors.com/releases/2023/08/230808110914.htm Extreme events in Antarctica such as ocean heatwaves and ice loss will almost certainly become more common and more severe, researchers say. Tue, 08 Aug 2023 11:09:14 EDT //www.koonmotors.com/releases/2023/08/230808110914.htm Clearcut logging leads to more frequent flooding, including extreme floods //www.koonmotors.com/releases/2023/08/230802132007.htm Loss of forest cover is associated with more frequent extreme flooding, as well as more frequent floods of any size, according to new research. While it's widely thought that loss of forest cover is strongly linked to increased flooding, most studies have suggested that the impact is limited to smaller floods. But the study, focused on two snow-dominated regions in British Columbia, the Deadman River and Joe Ross Creek watersheds, argues otherwise. Wed, 02 Aug 2023 13:20:07 EDT //www.koonmotors.com/releases/2023/08/230802132007.htm Earlier and earlier high-Arctic spring replaced by 'extreme year-to-year variation' //www.koonmotors.com/releases/2023/07/230726113056.htm About 15 years ago, researchers reported that the timing of spring in high-Arctic Greenland had advanced at some of the fastest rates of change ever seen anywhere in the world. But, according to new evidence, that earlier pattern has since been completely erased. Instead of coming earlier and earlier, it seems the timing of Arctic spring is now driven by tremendous climate variability with drastic differences from one year to the next. Wed, 26 Jul 2023 11:30:56 EDT //www.koonmotors.com/releases/2023/07/230726113056.htm 新的雷达技术让科学家探测invisible ice sheet region on Earth and icy worlds //www.koonmotors.com/releases/2023/07/230712124607.htm A new radar technique developed by a graduate student allows imaging of the upper few feet of ice sheets on Earth and icy worlds. The technique uses instruments on airplanes or satellites to survey large regions quickly. The upper few feet of ice sheets are important for measuring melt on Earth or looking for habitable environments on icy worlds. Previous airborne or satellite techniques could not image this narrow region in detail. Wed, 12 Jul 2023 12:46:07 EDT //www.koonmotors.com/releases/2023/07/230712124607.htm Arctic dust found to be a major source of particles that form ice crystals in Arctic low-level clouds //www.koonmotors.com/releases/2023/07/230707111620.htm Scientists in Japan have used a global climate model to show that dust from land without snow cover in the Arctic is a major source of particles that form ice crystals in Arctic low-level clouds. This finding could help improve predictions of Arctic warming, which is suggested to be much faster than in other parts of the world. Fri, 07 Jul 2023 11:16:20 EDT //www.koonmotors.com/releases/2023/07/230707111620.htm Shrinking Arctic glaciers are unearthing a new source of methane //www.koonmotors.com/releases/2023/07/230706124515.htm As the Arctic warms, shrinking glaciers are exposing bubbling groundwater springs which could provide an underestimated source of the potent greenhouse gas methane, finds new research. Thu, 06 Jul 2023 12:45:15 EDT //www.koonmotors.com/releases/2023/07/230706124515.htm Tracking ships' icy paths amidst climate change //www.koonmotors.com/releases/2023/07/230705171107.htm Understanding when and where ships are entering areas of Arctic sea ice can help elucidate the potential impacts of vessel traffic in the region. 2023年结婚,05年7月17日:11:07 EDT //www.koonmotors.com/releases/2023/07/230705171107.htm Significant decline of snow cover in the Northern hemisphere over the last half century //www.koonmotors.com/releases/2023/06/230629193256.htm A new study that uses rigorous mathematical models and statistical methods and finds declining snow cover in many parts of the northern hemisphere over the last half century. Thu, 29 Jun 2023 19:32:56 EDT //www.koonmotors.com/releases/2023/06/230629193256.htm Mountains vulnerable to extreme rain from climate change //www.koonmotors.com/releases/2023/06/230628130404.htm A new study finds that as rising global temperatures shift snow to rain, mountains across the Northern Hemisphere will be hotspots for extreme rainfall events that could trigger floods and landslides -- potentially impacting a quarter of the world's population. Wed, 28 Jun 2023 13:04:04 EDT //www.koonmotors.com/releases/2023/06/230628130404.htm Antarctic ice shelves experienced only minor changes in surface melt since 1980 //www.koonmotors.com/releases/2023/06/230621164638.htm A team of glaciologists set out to quantify how much ice melt occurred on Antarctica's ice shelves from 1980 to 2021. The results might seem to be good news for the region, but the researchers say there's no cause for celebration just yet. Wed, 21 Jun 2023 16:46:38 EDT //www.koonmotors.com/releases/2023/06/230621164638.htm Ground beneath Thwaites Glacier mapped //www.koonmotors.com/releases/2023/05/230531145123.htm The ground beneath Antarctica's most vulnerable glacier has now been mapped, helping scientists to better understand how it is being affected by climate change. Analysis of the geology below the Thwaites Glacier in West Antarctica shows there is less sedimentary rock than expected -- a finding that could affect how the ice slides and melts in the coming decades. Wed, 31 May 2023 14:51:23 EDT //www.koonmotors.com/releases/2023/05/230531145123.htm Montreal protocol is delaying first ice-free Arctic summer //www.koonmotors.com/releases/2023/05/230522161604.htm New research shows that the 1987 global treaty, designed to protect the ozone layer, has postponed the occurrence of the first ice-free Arctic by as much as 15 years. Mon, 22 May 2023 16:16:04 EDT //www.koonmotors.com/releases/2023/05/230522161604.htm Earlier snowpack melt in Western US could bring summer water scarcity //www.koonmotors.com/releases/2023/05/230522131337.htm Mountain snowpack, typically seen as the water tower of the Western United States and Canada, is in decline, according to a new study. Researchers created the Snow Storage Index to assess snow water storage from 1950-2013 and found that storage has significantly declined in more than 25% of the Mountain West, in part because more snow is melting during winter and spring. Mon, 22 May 2023 13:13:37 EDT //www.koonmotors.com/releases/2023/05/230522131337.htm Researchers discover a cause of rapid ice melting in Greenland //www.koonmotors.com/releases/2023/05/230508190559.htm While conducting a study of Petermann Glacier in northwest Greenland, researchers uncovered a previously unseen way in which the ice and ocean interact. The glaciologists said their findings could mean that the climate community has been vastly underestimating the magnitude of future sea level rise caused by polar ice deterioration. Mon, 08 May 2023 19:05:59 EDT //www.koonmotors.com/releases/2023/05/230508190559.htm West Antarctic Ice Sheet retreated far inland, re-advanced since last Ice Age //www.koonmotors.com/releases/2023/05/230501143014.htm The West Antarctic Ice Sheet is melting rapidly, raising concerns it could cross a tipping point of irreversible retreat in the next few decades if global temperatures rise 1.5 to 2.0 degrees Celsius (2.7 to 3.8 degrees Fahrenheit) above preindustrial levels. New research finds that 6,000 years ago, the grounded edge of the ice sheet may have been as far as 250 kilometers (160 miles) inland from its current location, suggesting the ice retreated deep into the continent after the end of the last ice age and re-advanced before modern retreat began. Mon, 01 May 2023 14:30:14 EDT //www.koonmotors.com/releases/2023/05/230501143014.htm Massive iceberg discharges during the last ice age had no impact on nearby Greenland, raising new questions about climate dynamics //www.koonmotors.com/releases/2023/04/230424133551.htm New findings suggest that Heinrich Events had no discernible impact on temperatures in Greenland, which could have repercussions for scientists' understanding of past climate dynamics. Mon, 24 Apr 2023 13:35:51 EDT //www.koonmotors.com/releases/2023/04/230424133551.htm Arctic ice algae heavily contaminated with microplastics //www.koonmotors.com/releases/2023/04/230421092152.htm The alga Melosira arctica, which grows under Arctic sea ice, contains ten times as many microplastic particles as the surrounding seawater. This concentration at the base of the food web poses a threat to creatures that feed on the algae at the sea surface. Clumps of dead algae also transport the plastic with its pollutants particularly quickly into the deep sea -- and can thus explain the high microplastic concentrations in the sediment there. Fri, 21 Apr 2023 09:21:52 EDT //www.koonmotors.com/releases/2023/04/230421092152.htm Polar ice sheet melting records have toppled during the past decade //www.koonmotors.com/releases/2023/04/230420080711.htm The seven worst years for polar ice sheets melting and losing ice have occurred during the past decade, according to new research, with 2019 being the worst year on record. The seven worst years for polar ice sheets melting and losing ice have occurred during the past decade, according to new research, with 2019 being the worst year on record. The melting ice sheets now account for a quarter of all sea level rise -- a fivefold increase since the 1990's -- according to researchers who have combined 50 satellite surveys of Antarctica and Greenland taken between 1992 and 2020, funded by NASA and the European Space Agency. Thu, 20 Apr 2023 08:07:11 EDT //www.koonmotors.com/releases/2023/04/230420080711.htm A once-stable glacier in Greenland is now rapidly disappearing //www.koonmotors.com/releases/2023/04/230419125120.htm As climate change causes ocean temperatures to rise, one of Greenland's previously most stable glaciers is now retreating at an unprecedented rate, according to a new study. Wed, 19 Apr 2023 12:51:20 EDT //www.koonmotors.com/releases/2023/04/230419125120.htm Less ice, fewer calling seals //www.koonmotors.com/releases/2023/04/230417142506.htm For several years, a team of researchers used underwater microphones to listen for seals at the edge of the Antarctic. Their initial findings indicate that sea-ice retreat has had significant effects on the animals' behavior: when the ice disappears, areas normally full of vocalizations become very quiet. Mon, 17 Apr 2023 14:25:06 EDT //www.koonmotors.com/releases/2023/04/230417142506.htm Researchers correlate Arctic warming to extreme winter weather in midlatitude and its future //www.koonmotors.com/releases/2023/04/230405112124.htm A warmer Arctic has been linked to extreme winter weather in the midlatitude regions. But, it is not clear how global warming affects this link. In a new study, researchers show, using weather data and climate models, that while the 'Warm Arctic-Cold Continent' pattern will continue as the climate continues to warm, Arctic warming will become a less reliable predictor of extreme winter weather in the future. Wed, 05 Apr 2023 11:21:24 EDT //www.koonmotors.com/releases/2023/04/230405112124.htm Ice sheets can collapse faster than previously thought possible //www.koonmotors.com/releases/2023/04/230405112113.htm Ice sheets can retreat up to 600 meters a day during periods of climate warming, 20 times faster than the highest rate of retreat previously measured. An international team of researchers used high-resolution imagery of the seafloor to reveal just how quickly a former ice sheet that extended from Norway retreated at the end of the last Ice Age, about 20,000 years ago. Wed, 05 Apr 2023 11:21:13 EDT //www.koonmotors.com/releases/2023/04/230405112113.htm Deep ocean currents around Antarctica headed for collapse, study finds //www.koonmotors.com/releases/2023/03/230330102327.htm Antarctic circulation could slow by more than 40 per cent over the next three decades, with significant implications for the oceans and the climate. Thu, 30 Mar 2023 10:23:27 EDT //www.koonmotors.com/releases/2023/03/230330102327.htm The Greenland Ice Sheet is close to a melting point of no return //www.koonmotors.com/releases/2023/03/230327163212.htm A new study using simulations identified two tipping points for the Greenland Ice Sheet: releasing 1000 gigatons of carbon into the atmosphere will cause the southern portion of the ice sheet to melt; about 2500 gigatons of carbon means permanent loss of nearly the entire ice sheet. Having emitted about 500 gigatons of carbon, we're about halfway to the first tipping point. Mon, 27 Mar 2023 16:32:12 EDT //www.koonmotors.com/releases/2023/03/230327163212.htm 3000+ billion tons of ice lost from Antarctic Ice Sheet over 25 years //www.koonmotors.com/releases/2023/03/230321112644.htm Scientists have calculated that the fastest changing Antarctic region?-?the Amundsen Sea Embayment?-?has lost more than 3,000 billion tonnes of ice over a 25-year?period.?? Tue, 21 Mar 2023 11:26:44 EDT //www.koonmotors.com/releases/2023/03/230321112644.htm 3D radar scan provides clues about threats to iconic Alaskan glacier //www.koonmotors.com/releases/2023/03/230317184929.htm Mapping a large coastal glacier in Alaska revealed that its bulk sits below sea level and is undercut by channels, making it vulnerable to accelerated melting in an already deteriorating coastal habitat. Fri, 17 Mar 2023 18:49:29 EDT //www.koonmotors.com/releases/2023/03/230317184929.htm Entire populations of Antarctic seabirds fail to breed due to extreme, climate-change-related snowstorms //www.koonmotors.com/releases/2023/03/230313121000.htm The arrival of the new year is a prime time for Antarctic birds like the south polar skua, Antarctic petrel, and snow petrel to build nests and lay their eggs. However, from December 2021 to January 2022, researchers did not find a single skua nest on Svarthamaren, one of the regions where the birds go to raise their young. Similarly, the number of Antarctic petrel and snow petrel nests dropped to almost zero. Mon, 13 Mar 2023 12:10:00 EDT //www.koonmotors.com/releases/2023/03/230313121000.htm Arctic climate modelling too conservative //www.koonmotors.com/releases/2023/03/230313101127.htm Climate models used by the UN's IPCC and others to project climate change are not accurately reflecting what the Arctic's future will be, experts say. Mon, 13 Mar 2023 10:11:27 EDT //www.koonmotors.com/releases/2023/03/230313101127.htm Robot provides unprecedented views below Antarctic ice shelf //www.koonmotors.com/releases/2023/03/230302114213.htm 在一个水下机器人的帮助下,被称为冰fin, a U.S.- New Zealand research team has obtained an unprecedented look inside a crevasse at Kamb Ice Stream -- revealing more than a century of geological processes beneath the Antarctic ice. Thu, 02 Mar 2023 11:42:13 EST //www.koonmotors.com/releases/2023/03/230302114213.htm Satellites observe speed-up of Glaciers on the Antarctic Peninsula //www.koonmotors.com/releases/2023/02/230227132459.htm Glaciers -- giant blocks of moving ice -- along Antarctica's coastline are flowing faster in the summer because of a combination of melting snow and warmer ocean waters, say researchers. On average, the glaciers travel at around one kilometre a year. But a new study has found a seasonal variation to the speed of the ice flow, which speeded up by up to 22 % in summer when temperatures are warmer. This gives an insight into the way climate change could affect the behaviour of glaciers and the role they could play in raising sea levels. Mon, 27 Feb 2023 13:24:59 EST //www.koonmotors.com/releases/2023/02/230227132459.htm Keeping drivers safe with a road that can melt snow, ice on its own //www.koonmotors.com/releases/2023/02/230216161637.htm Slipping and sliding on snowy or icy roads is dangerous. Salt and sand help melt ice or provide traction, but excessive use is bad for the environment. And sometimes, a surprise storm can blow through before these materials can be applied. Now, researchers ave filled microcapsules with a chloride-free salt mixture that's added into asphalt before roads are paved, providing long-term snow melting capabilities in a real-world test. Thu, 16 Feb 2023 16:16:37 EST //www.koonmotors.com/releases/2023/02/230216161637.htm Acceleration of global sea level rise imminent past 1.8 degrees planetary warming //www.koonmotors.com/releases/2023/02/230214153916.htm A study shows that an irreversible loss of the ice sheets, and a corresponding acceleration of sea level rise, may be imminent if global temperature cannot be stabilized below 1.8 degrees Celsius. Tue, 14 Feb 2023 15:39:16 EST //www.koonmotors.com/releases/2023/02/230214153916.htm Record low sea ice cover in the Antarctic //www.koonmotors.com/releases/2023/02/230210115551.htm There is currently less sea ice in the Antarctic than at any time in the forty years since the beginning of satellite observation: in early February 2023, only 2.20 million square kilometers of the Southern Ocean were covered with sea ice. Fri, 10 Feb 2023 11:55:51 EST //www.koonmotors.com/releases/2023/02/230210115551.htm More frequent atmospheric rivers hinder seasonal recovery of Arctic sea ice //www.koonmotors.com/releases/2023/02/230206130632.htm The Arctic is rapidly losing sea ice, even during winter months when temperatures are below freezing and ice should be recovering from the summer melt. A new study found powerful storms called atmospheric rivers are increasingly reaching the Arctic in winter, slowing sea ice recovery and accounting for a third of all winter sea ice decline, according to a team led by Penn State scientists. Mon, 06 Feb 2023 13:06:32 EST //www.koonmotors.com/releases/2023/02/230206130632.htm Wildfires are increasingly burning California's snowy landscapes and colliding with winter droughts to shrink California's snowpack //www.koonmotors.com/releases/2023/02/230201195447.htm A research team examined what happens to mountain snowpacks when sunny, midwinter dry spells occur in forests impacted by severe wildfire. Wed, 01 Feb 2023 19:54:47 EST //www.koonmotors.com/releases/2023/02/230201195447.htm Global warming reaches central Greenland //www.koonmotors.com/releases/2023/01/230118111656.htm A temperature reconstruction from ice cores of the past 1,000 years reveals that today's warming in central-north Greenland is surprisingly pronounced. The most recent decade surveyed in a study, the years 2001 to 2011, was the warmest in the past 1,000 years, and the region is now 1.5 °C warmer than during the 20th century, as researchers report. Using a set of ice cores unprecedented in length and quality, they reconstructed past temperatures in central-north Greenland and melting rates of the ice sheet. Wed, 18 Jan 2023 11:16:56 EST //www.koonmotors.com/releases/2023/01/230118111656.htm Study offers most detailed glimpse yet of planet's last 11,000 summers and winters //www.koonmotors.com/releases/2023/01/230111131458.htm An international team of collaborators have revealed the most detailed look yet at the planet's recent climactic history, including summer and winter temperatures dating back 11,000 years to the beginning of what is known as the Holocene. Wed, 11 Jan 2023 13:14:58 EST //www.koonmotors.com/releases/2023/01/230111131458.htm AI developed to monitor changes to the globally important Thwaites Glacier //www.koonmotors.com/releases/2023/01/230109112711.htm Scientists have developed artificial intelligence techniques to track the development of crevasses -- or fractures -- on the Thwaites Glacier Ice Tongue in west Antarctica. A team of scientists has adapted an AI algorithm originally developed to identify cells in microscope images to spot crevasses forming in the ice from satellite images. Crevasses are indicators of stresses building-up in the glacier. Mon, 09 Jan 2023 11:27:11 EST //www.koonmotors.com/releases/2023/01/230109112711.htm Spring sunny heat waves caused record snow melt in 2021, adding to severe water supply impacts across the Western US //www.koonmotors.com/releases/2023/01/230105151229.htm Researchers examine the role of spring heatwaves on the melting rates of mountain snowpacks across the West. They found that in April 2021, record-breaking snowmelt rates occurred at 24% of all mountain snowpack monitoring sites in the region, further compounding the impacts of extended drought conditions. Thu, 05 Jan 2023 15:12:29 EST //www.koonmotors.com/releases/2023/01/230105151229.htm Skiing over Christmas holidays no longer guaranteed -- even with snow guns //www.koonmotors.com/releases/2022/12/221228092241.htm 对许多人来说,假期在雪地里都是一样a part of the end of the year as Christmas trees and fireworks. As global warming progresses, however, white slopes are becoming increasingly rare. Researchers have calculated how well one of Switzerland's largest ski resorts will remain snow reliable with technical snow-making by the year 2100, and how much water this snow will consume. Wed, 28 Dec 2022 09:22:41 EST //www.koonmotors.com/releases/2022/12/221228092241.htm Bering Land Bridge formed surprisingly late during last ice age //www.koonmotors.com/releases/2022/12/221226151545.htm A new study that reconstructs the history of sea level at the Bering Strait shows that the Bering Land Bridge connecting Asia to North America did not emerge until around 35,700 years ago, less than 10,000 years before the height of the last ice age (known as the Last Glacial Maximum). The findings indicate that the growth of the ice sheets -- and the resulting drop in sea level -- occurred surprisingly quickly and much later in the glacial cycle than previous studies had suggested. Mon, 26 Dec 2022 15:15:45 EST //www.koonmotors.com/releases/2022/12/221226151545.htm New cause of melting Antarctic ice shelves //www.koonmotors.com/releases/2022/12/221222101001.htm Researchers have discovered a process that can contribute to the melting of ice shelves in the Antarctic. An international team of scientists found that adjacent ice shelves play a role in causing instability in others downstream. The study also identified that a small ocean gyre -- a system of circulating ocean currents -- next to the Thwaites Ice Shelf can impact the amount of glacial-meltwater flowing beneath it. When that gyre is weaker, more warm water can access the areas beneath the ice shelf, causing it to melt. Thu, 22 Dec 2022 10:10:01 EST //www.koonmotors.com/releases/2022/12/221222101001.htm Do polar bear paws hold the secret to better tire traction? //www.koonmotors.com/releases/2022/12/221219164700.htm Traction is important. Humans have been continually interested in discovering how to better move across wet or frozen surfaces safely -- whether to improve shoes for walking on sidewalks or tires to maneuver the roadways. But what makes it possible for some Arctic animals to walk and run across the ice so effortlessly and gracefully without slipping and falling? Researchers took a deep dive into the paws of polar bears to find out. What the team discovered was that all bears (except sun bears) have papillae on their paw pads, but that the papillae on polar bears were taller -- up to 1.5 times. And, that the taller papillae of polar bears help to increase traction on snow relative to shorter ones. Even though polar bears have smaller paw pads compared to the other species (likely because of greater fur coverage for heat conservation), the taller papillae of polar bears compensate for their smaller paw pads, giving them a 30-50% increase in frictional shear stress. Mon, 19 Dec 2022 16:47:00 EST //www.koonmotors.com/releases/2022/12/221219164700.htm Paris Agreement temperature targets may worsen climate injustice for many island states //www.koonmotors.com/releases/2022/12/221213121509.htm While the world focuses on limiting the rise in global temperature to 1.5 or 2 degrees Celsius over the preindustrial average, increasing meltwater from ice sheets presents an existential threat to the viability of island and coastal nations throughout the world. Now, research shows that even the most optimistic temperature targets can lead to catastrophic sea-level rise, which has already begun and will affect low-lying nations for generations to come. Tue, 13 Dec 2022 12:15:09 EST //www.koonmotors.com/releases/2022/12/221213121509.htm 新的冰河时代的理解频率 //www.koonmotors.com/releases/2022/12/221206204807.htm A chance find of an unstudied Antarctic sediment core has led researchers to flip our understanding of how often ice ages occurred in Antarctica. Tue, 06 Dec 2022 20:48:07 EST //www.koonmotors.com/releases/2022/12/221206204807.htm Greenland ice sheet: Short-lived ice streams //www.koonmotors.com/releases/2022/12/221205121601.htm Major ice streams can shut down, shifting rapid ice transport to other parts of the ice sheet, within a few thousand years. This was determined in reconstructions of two ice streams, based on ice-penetrating radar scans of the Greenland ice sheet. Mon, 05 Dec 2022 12:16:01 EST //www.koonmotors.com/releases/2022/12/221205121601.htm Complete picture of Arctic sea ice freeze-thaw cycle highlights sea ice response to climate change //www.koonmotors.com/releases/2022/12/221205104208.htm Years of research show that climate change signals are amplified in the Arctic, and that sea ice in this region is sensitive to increases in Arctic warming. Sea ice greatly modifies the exchanges of heat, momentum and mass between the atmosphere and the ocean. So, the timings of the sea ice melt and freeze onsets, as well as the length of the melt and freeze seasons, play a key role in the 'heat budget' of the atmosphere-ice-ocean system. Mon, 05 Dec 2022 10:42:08 EST //www.koonmotors.com/releases/2022/12/221205104208.htm Biodiversity unbalanced as ice-free Antarctic areas grow //www.koonmotors.com/releases/2022/12/221201082156.htm A study into the impact of global warming on the biodiversity of the Antarctic has identified how predicted expansion of ice-free areas will impact native animals and plants, paving the way for the invasion of non-native species in Antarctica. 星期四,2022年12月01 08:21:56 EST //www.koonmotors.com/releases/2022/12/221201082156.htm How giant-faced owls snag voles hidden in snow //www.koonmotors.com/releases/2022/11/221130114632.htm 几大灰猫头鹰的物理特性,特别是ecially parts of their wings and face, help them correct for sonic distortions caused by snow, enabling them to find hidden, moving food with astonishing accuracy, according to a new study. Wed, 30 Nov 2022 11:46:32 EST //www.koonmotors.com/releases/2022/11/221130114632.htm Limiting global warming now can preserve valuable freshwater resource //www.koonmotors.com/releases/2022/11/221122111035.htm A research team has found that the Andean region of Chile could face noticeable snow loss and roughly 10% less mountain water runoff with a global warming of approximately 2.5 degrees Celsius compared to pre-industrial levels over the next three decades. The study also shows that what happens in the Andes could be a harbinger of what is to come for the California Sierra Nevada mountain range, and highlights the importance of carbon-mitigation strategies to prevent this from occurring. Tue, 22 Nov 2022 11:10:35 EST //www.koonmotors.com/releases/2022/11/221122111035.htm Salt more important than cold polar temps in sea ice formation //www.koonmotors.com/releases/2022/11/221116150658.htm When polar seas freeze and ice forms, it is not only due to cold air chilling the surface of the water. Even more important is that warm water is prevented from rising to the surface from the depths of the ocean, due to the much lower salinity of the surface water. Wed, 16 Nov 2022 15:06:58 EST //www.koonmotors.com/releases/2022/11/221116150658.htm Arctic vegetation has a major impact on warming //www.koonmotors.com/releases/2022/11/221116133846.htm An international team of research scientists has documented the central role of vegetation for Arctic warming. The new results allow us to make more precise climate predictions, with the researchers pointing out that current models remain flawed. Wed, 16 Nov 2022 13:38:46 EST //www.koonmotors.com/releases/2022/11/221116133846.htm Desert dust collected from glacier ice helps document climate change //www.koonmotors.com/releases/2022/11/221114190634.htm Researchers are using dust trapped in glacier ice in Tibet to document past changes in Earth's intricate climate system -- and maybe one day help predict future changes. Mon, 14 Nov 2022 19:06:34 EST //www.koonmotors.com/releases/2022/11/221114190634.htm Ice loss from Northeastern Greenland significantly underestimated //www.koonmotors.com/releases/2022/11/221109124346.htm According to a new study that combined GPS, satellite data, and numerical modelling, ice loss from northeast Greenland could be six times greater by the end of the century than previously thought. Wed, 09 Nov 2022 12:43:46 EST //www.koonmotors.com/releases/2022/11/221109124346.htm