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Tag: global warming

  • Inside the fight to save reef sharks from extinction

    Inside the fight to save reef sharks from extinction

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    Inside the fight to save reef sharks from extinction – CBS News


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    Despite how terrifying sharks might seem, the creatures are critical to the survival of the world’s oceans. Oceans generate 50% of the oxygen on the planet and absorb 90% of excess heat created by global warming. CBS News senior national and environmental correspondent Ben Tracy spoke with conservationists in the Bahamas.

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  • Climate change may drive millions of species to extinction

    Climate change may drive millions of species to extinction

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    Climate change may drive millions of species to extinction – CBS News


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    At least a million species may disappear from Earth in coming decades due to a warming climate, but scientists are using a range of tools to protect plants and animals. CBS News environmental correspondent David Schechter reports.

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  • Flooding across Russia’s west from melting mountain snow and ice forces mass evacuations

    Flooding across Russia’s west from melting mountain snow and ice forces mass evacuations

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    Moscow — Warm spring temperatures have unleashed torrents on parts of western Russia, where thawing ice and melting mountain snow are swelling some of Europe’s biggest rivers and inundating towns and cities along their paths. The southwest Russian city of Orenburg, near the Kazakh border, was bracing for its worst flooding in decades, while to the north, the entire region of Tyumen in western Siberia was put under a state of emergency as the flood risk mounted.

    Officials have evacuated thousands of residents from homes along fast-rising rivers in the Urals and western Siberia.

    Moscow declared a federal emergency Sunday amid the flooding in the Orenburg region, where the Ural river left much of the city of Orsk covered in water, forcing thousands to leave their homes. 

    TOPSHOT-RUSSIA-FLOOD-DAM
    Rescuers evacuate residents from the flooded part of the city of Orsk, in Russia’s Orenburg region, April 8, 2024.

    ANATOLIY ZHDANOV/Kommersant Photo/AFP/Getty


    The river was reaching dangerous levels Monday in the regional capital of Orenburg, a city of 550,000 people.

    The Kremlin spoke of a “critical” situation Monday, warning that the floods had “possibly not reached their peak.”

    Emergency services said Monday that more than 10,000 residential buildings had been flooded, mostly in the Urals, the Volga area and western Siberia. They warned of a “rise in air temperature, active snow melting and the overflow of rivers.”

    Governor Alexander Moor was quoted by state media as saying all of the Tyumen region would be under a state of emergency until the flooding risk passed.

    In the south, much of the city of Orsk was under water after torrential rain caused a nearby dam to burst. Orenburg region authorities said that while the Ural river “went down by nine centimeters (3.5 inches)” in Orsk, water levels in the city of Orenburg were still rising fast.

    Evacuation of residents continues after dam bursts in Orsk, Russia
    A screen grab from video provided by the Russian Ministry of Emergency shows residents and pets being evacuated from a flooded neighborhood after a dam burst in the city of Orsk, Russia, April 6, 2024.

    Russian Ministry of Emergency/Anadolu/Getty


    The mayor of Orenburg, Sergei Salmin, called on residents in flood-risk zones to leave immediately.

    “The water can come at night. Do not risk your lives,” he said on social media, warning that water levels would surpass danger marks. “Do not wait for that. Leave right now.”

    Salmin told Russian television that Orenburg had not “seen so much water” since the last high mark was registered in 1942. “Since then there have been no floods. This is unprecedented.”

    President Vladimir Putin ordered a government commission to be established on the floods. His spokesman said Putin did not plan on visiting the flood zone but that he was being briefed on “nature anomalies” in real time.  

    Putin, who has been a vocal skeptic of man-made climate change for much of his rule, has in recent years ordered his government to do more to prepare Russia for extreme weather events. The country has seen severe floods and fires in recent springs and summers.

    Salmin said authorities had evacuated 736 people in Orenburg as they expected the water to rise further.

    Over the weekend he warned of forced evacuations if people did not cooperate, saying: “There is no time for convincing.”

    Russia’s weather monitor Rosgidromet said it did not expect the flood in Orenburg to peak until Wednesday and warned that many districts of the city would be affected.

    The Ural river flows through Orenburg and into Kazakhstan, where President Kassym-Jomart Tokayev said the floods were one of the worst natural disasters to affect the area in decades.

    More than 13 thousand evacuated due to flood in Kazakhstan
    An aerial view provided by a Kazakhstan Ministry of Emergency Situations helicopter shows inundated areas as melting snow causes flooding, blocking transportation in 49 villages in Kazakhstan, April 1, 2024.

    Kazakh Ministry of Emergency/Handout/Anadolu/Getty


    Aerial images of the city of Orsk showed just the top floors and colourful roofs of houses visible over brown water. In the city center, water reached the first floor of buildings.

    After evacuating more than 6,000 people across the Orenburg region, authorities also began relocating some residents of the Siberian city of Kurgan near northern Kazakhstan, home to around 300,000 people, where the Tobol river was expected to rise.

    Emergency services in Kurgan said 571 people were moved away from areas expected to be flooded.

    Authorities said around 100 rescuers had arrived as reinforcements in the western Siberian region from the Urals to prepare for the floods.

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  • Sperm whale’s slow death trapped in maze-like Japanese bay raises alarm over impact of global warming

    Sperm whale’s slow death trapped in maze-like Japanese bay raises alarm over impact of global warming

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    Tokyo — The slow demise of a stray whale that spent its last days circling Osaka Bay not only saddened TV viewers across Japan, it also alarmed cetacean experts who called the whale the latest casualty of a warming planet.

    “Whales used to lose their way every three years or so,” Yasunobu Nabeshima, a visiting researcher at the Osaka Museum of Natural History, told CBS News. “Until now it was a rare phenomenon. But these incidents have increased.”

    Sperm whale (Physeter macrocephalus), side view
    A file photo shows a sperm whale swimming near the Ogasawara Islands, Tokyo Prefecture, Japan.

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    This month’s tragedy marked the second case in as many years.

    Nabeshima said global warming has reduced the temperature differential between the Pacific Ocean and Osaka Bay, rendering the powerful Kuroshio Current “a warm-water conveyor belt” that propels whales from their usual deep ocean haunts into the shallow waters along the coast.

    The most recent episode began in mid-January, when the sperm whale — one of the world’s heaviest animals — was first sighted off the coast of Nishinomiya City in Hyogo Prefecture. TV cameras and local authorities intently tracked the doomed whale as it swam futilely eastward toward Osaka.

    Deprived of its primary food, giant squid, the whale’s spout grew noticeably listless.

    Unlike Japan’s easy-to-navigate harbors like Kobe, Osaka Bay, which serves Japan’s third-largest city, is a maze of artificial islands and landfilled peninsulas, packed with theme parks and shopping malls as well as warehouses and industrial plants. It’s effectively a death trap for marine mammals, with numerous nooks and crannies and bounded by wharves and breakwaters that can make it impossible for the creatures to find their way back out to the blue water.

    Osaka Bay in Japan aerial view from airplane
    An aerial photo shows some of the inlets, wharves and reclaimed islands of Japan’s Osaka Bay.

    Taro Hama/Getty


    Another sperm whale died near the mouth of the Yodo River in Osaka in January 2023. Nabeshima, of the Osaka museum, told CBS News that a pod of short-beaked common dolphins ended up stuck in Osaka Bay last fall and they could be seen from Yumeshima, an artificial island and site for Expo 2025, which opens in April. Sea turtles have also become stranded in the area.

    The severely emaciated body of the latest sperm whale casualty, a male that weighed over 30 metric tons and measured 50 feet in length, was recovered and temporarily buried after officials decided it would be cheaper than hauling the carcass out to sea. After two years, the skeleton will be recovered and donated to a local museum.

    Stray whales can be a jumbo-sized headache for local governments. The cost to taxpayers of the offshore burial for last year’s stranded sperm whale was more than half a million dollars — 10 times the cost of a land burial, according to the Mainichi daily newspaper.

    TV viewers watched in real time as the whale, lying on its side, its enormous jaws open in a “V,” was tethered to the wharf and then carefully placed in an enormous sling. In a delicate procedure lasting over an hour, an oceanside crane gingerly lifted the carcass and placed it onto a flatbed truck, which carried it to its temporary resting place.

    A researcher told the local network MBS TV that the creature would first undergo a forensic analysis to determine its cause of death, age, history of injuries and illness and a DNA test to determine its origin. The whale that became trapped last year was 46 years old. Sperm whales have been recorded to live as long as 62.

    Experts also planned to search the creature’s intestines for chunks of ambergris, an extremely rare and strange waxy substance produced in sperm whales from undigested pieces of squid and other cephalopods. Known as “floating gold” and found in only 1 to 5% of sperm whales, ambergris is used in French perfumes. In 2021 one chunk sold for $1.5 million.

    Cityscape of Osaka bay
    Osaka bay, Japan.

    Getty


    Scientists have been calling for new measures to keep the mighty animals out of harm’s way, including sensor-activated “acoustic deterrent devices” placed at the Kii Strait, the entryway to the Inland Sea from the Pacific Ocean, to prevent the whales venturing near the coastline. 

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  • 2/9: CBS News Weekender

    2/9: CBS News Weekender

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    2/9: CBS News Weekender – CBS News


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    Catherine Herridge reports on a deadly plane crash on a Florida highway, earthquakes in Hawaii and California, and where the world’s largest iceberg is headed.

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  • ‘Category 5’ was considered the worst hurricane. There’s something scarier, study says.

    ‘Category 5’ was considered the worst hurricane. There’s something scarier, study says.

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    As fearsome as Category 5 hurricanes can be for people living in harm’s way, a new study reports global warming is supercharging some of the most intense cyclones with winds high enough to merit a hypothetical Category 6.

    The world’s most intense hurricanes are growing even more intense, fueled by rising temperatures in the ocean and atmosphere, according to the study published Monday in the Proceedings of the National Academy of Sciences. And, the authors say, a Category 5 on the traditional wind scale underestimates their dangers.

    “As a cautious scientist, you never want to cry wolf,” said Michael Wehner, co-author and climate scientist at the Lawrence Berkeley National Laboratory. But after searching for the signature of climate change in the world’s most intense cyclones, Wehner said he and co-author Jim Kossin found “the wolf is here.”

    “Significantly increasing” temperatures, fueled by greenhouse gas emissions, up the energy available to the most intense tropical cyclones, reported Wehner and Kossin, a retired federal scientist and science advisor at the nonprofit First Street Foundation.

    More cyclones are making the most of it, gaining higher wind speeds and more intensity, the authors said, and their evidence shows that will occur even more often as the world grows warmer.

    They used a hypothetical Category 6, with a minimum threshold of 192 mph, to study hurricanes that have occurred in the modern satellite era, since around 1980. They found five hurricanes and typhoons that would have met the criteria and all five occurred within the last decade.

    To be clear, they aren’t proposing adding that category to the National Hurricane Center’s wind scale, which experts say would require a lengthy process and many partners. But they are hoping to “inform broader discussions about how to better communicate risk in a warming world,” Kossin told USA TODAY.

    Their findings emphasize that the dangers associated with a Category 5 cyclone are increasing as storms intensify above the Cat 5’s 157-mph threshold and that results in an underestimation of risk, he said.

    An enhanced satellite image released National Oceanic and Atmospheric Administration on Oct.23, 2015, shows Hurricane Patricia as it approaches the coastline of Mexico from the Eastern Pacific.

    An enhanced satellite image released National Oceanic and Atmospheric Administration on Oct.23, 2015, shows Hurricane Patricia as it approaches the coastline of Mexico from the Eastern Pacific.

    They found the chances of that potential intensity occurring in such storms have more than doubled since 1979. They say the areas where the growing risks of these storms are of greatest concern are the Gulf of Mexico, the Philippines, parts of Southeast Asia and Australia.

    Their peer-reviewed, scientific research provides the evidence pointing to climate change that some scientists have been waiting for.

    For more than 35 years, the scientific community has expected to see thermodynamic wind speeds increase in hurricanes, said Kerry Emanuel, the climate scientist who edited the paper for the journal. “And now we are seeing this increase in both climate analyses and models..”

    What is the Saffir-Simpson Hurricane Wind Scale?

    The hurricane center has used the well-known scale – with wind speed ranges for each of five categories – since the 1970s. The minimum threshold for Category 5 winds is 157 mph.

    Designed by engineer Herbert Saffir and adapted by former center director Robert Simpson, the scale stops at Category 5 since winds that high would “cause rupturing damages that are serious no matter how well it’s engineered,” Simpson said during a 1999  interview.

    The Saffir-Simpson scale categorizes hurricanes.The Saffir-Simpson scale categorizes hurricanes.

    The Saffir-Simpson scale categorizes hurricanes.

    The open-ended Category 5 describes anything from “a nominal Category 5 to infinity,” Kossin said. “That’s becoming more and more inadequate with time because climate change is creating more and more of these unprecedented intensities.”

    A Category 6?

    Scientists, including Kossin, have occasionally brought up adding another category to the scale for more than 20 years.

    Climate scientist Michael Mann, director of the Penn Center for Science, Sustainability & the Media at the University of Pennsylvania, has argued for years that the Earth is “experiencing a new class of monster storms – ‘Category 6’ – hurricanes,” thanks to the effects of human-caused warming.

    Mann wrote a commentary to the Wehner and Kossin study, published in the same journal Monday, saying their work lays out an objective case for expanding the scale to include the “climate change-fueled stronger and more destructive storms.”

    “We are witnessing hurricanes that – by any logical extension of the existing Saffir-Simpson scale – deserve to be placed in a whole separate, more destructive category from the traditionally defined (category 5) ‘strongest’ storms,” Mann wrote.

    The research adds to a growing discussion about how the center, emergency managers and others could better convey the full range of hazards from a major hurricane.

    Climate change Is it fueling hurricanes in the Atlantic? Here’s what science says.

    Hurricane scale doesn’t measure other, greater risks

    The Saffir-Simpson scale only describes the wind risk and does not account for coastal storm surge and rainfall-driven flooding, the two biggest killers in hurricanes.

    Adding a sixth category to the wind scale wouldn’t help address those concerns, Kossin said.

    The hurricane center has tried to steer the focus toward the individual hazards, including storm surge, wind, rainfall, tornadoes and rip currents, Jamie Rhome, the center’s deputy executive director, said last week. “So, we don’t want to over-emphasize the wind hazard by placing too much emphasis on the category.”

    Despite the center’s efforts, the storm’s wind category always gets the most attention from the public when a storm approaches.

    “That focus on category over the years has detracted from effective communication of the other hazards,” said James Franklin, a retired branch chief for hurricane specialists at the hurricane center. “The emphasis at the NHC, rightly, has been to focus on the hazards,” he said.

    Ultimately, the decision would likely rest with the center, but Kossin said the conversation would “have to happen over time with a lot of input” from the Federal Emergency Management Agency, social scientists and others.

    It’s likely the World Meteorological Organization would be asked to weigh in because of the international scope involved in hurricane and typhoon forecasting, Franklin said. That’s the same group that sets the list of hurricane names for each season.

    To Franklin, the question is what would a sixth category accomplish?

    “If there are things that emergency managers would do differently, or the public might do differently because a storm has 195 mph winds versus 160 mph winds, then maybe the categories should be changed,” he said. “Personally, I’m getting out of the way if it’s 165 mph winds or 195 mph winds.”

    This infrared satellite image shows Hurricane Patricia over the Pacific Ocean on Oct. 23, 2015.This infrared satellite image shows Hurricane Patricia over the Pacific Ocean on Oct. 23, 2015.

    This infrared satellite image shows Hurricane Patricia over the Pacific Ocean on Oct. 23, 2015.

    Which storms fit the study’s hypothetical Category 6 description?

    One hurricane in the eastern Pacific, Patricia, and four typhoons in the western Pacific:

    Haiyan, November 2013: Struck the southern Philippines with 196-mph winds and a storm surge of almost 25 feet, killing 6,300 people and leaving 4 million homeless.

    Patricia, October 2015: Reached winds of 216 mph at sea, then dropped before it made landfall in Jalisco, Mexico as a Category 4 storm.

    Meranti, September 2016: Moved between the Philippines and Taiwan before making landfall in eastern China. Its winds reached 196 mph.

    Goni, November 2020: Made landfall in the Philippines with winds estimated at 196 mph.

    Surigae, April 2021: Reached wind speeds of 196 mph over the ocean, tracking east of the Philippines. Its max winds were the highest ever recorded for a storm from January to April anywhere in the world.

    Dinah Voyles Pulver covers climate and environmental issues for USA TODAY. Reach her at dpulver@gannett.com or @dinahvp.

    This article originally appeared on USA TODAY: Category 6 hurricane? That’s what a new study suggests. Here’s why.

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  • Farmer Protests in Europe Foreshadow Dark Future for American Farmers

    Farmer Protests in Europe Foreshadow Dark Future for American Farmers

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    Opinion

    Tractor on farm track by Peter Holmes, via Wikimedia Commons

    The progressive stranglehold of “climate change” policy in Europe has taken its toll on their farmers, and they have reached a critical breaking point. A breaking point that could be coming to America’s heartland in the very near future.

    Europe has had a simmering level of discontent among its farming community over the last few years, with tensions in some countries starting to boil over as farmers intensify protests throughout the continent. Major highways have been blocked by tractors, bales of hay lit on fire, and access to airports and sea ports restricted by the protesters.

    The increase in irritation from European farmers comes as the European Union Summit is set to commence. Farmers from Belgium to Italy and France to Spain are hopeful their voices will be considered as European leaders meet to plot new “climate change” regulations.

    Enough is enough

    European farmers are making waves across the continent as they flex their agricultural muscles to catch the attention of their elected leaders. French farmers recently blocked highways in and out of Paris with tractors and set hay bales on fire to block access to Toulouse-Blagnac Airport.

    Belgian farmers blocked roads to the Zeebrugge container port. Farmers marched in the streets of Milan and Rome in Italy.

    Last year, German and Polish farmers protested, and Spanish farmers have pledged to add their voices to the mix starting in February. Sporting protest signs with slogans such as: “Minister for awhile, Farmer for Life” these farmers are at their limit with the European Union bureaucrats.

    Why all the anger from seemingly mild-mannered European farmers? They argue that the EU’s oppressive regulations primarily aimed at climate change initiatives have made it almost impossible to thrive as a farmer in Europe and stay in business at all.

    One such regulation is the requirement to devote 4% of their farmland to “non-productive” areas so “nature can recover” to receive subsidies from the EU. The requirement to leave land fallow to receive subsidies has put many farmers out of business, with rumors of some feeling so desperate they’ve resorted to suicide.

    Where would such a nonsensical restriction come from?

    RELATED: China Buying American Farms Is So Dangerous Even Senator John Fetterman Gets It

    Another dangerous meeting

    Last year, the 28th Conference of the Parties, otherwise known as the COP28, met in Dubai. It is an annual event where world leaders meet to discuss policy changes that could be made to avert climate disasters. The meetings are often minimally covered by mainstream media.

    Unfortunately, these extravagant get-togethers of the world elite tend to be where some of the worst ideas are born and then subsequently dropped into government policies affecting the unsuspecting masses. Last year’s event, in particular, showcased what they dubbed as “1.5 Celcius-aligned menus” focused on plant-based foods to show the importance of “climate-friendly food and farming.”

    The COP28 Food Systems Lead Mariam Almheiri said of the menus:

    “To achieve the goals of the Paris Agreement, to keep 1.5C within reach, we must address the connection between global food systems, agriculture, and the climate.”

    Don’t be fooled by the eloquence of the line; when Mr. Almheiri mentions global food systems, he’s talking about farms and ranches. The United States naturally was in attendance last year and was one of over 150 countries that agreed to implement policies to align with the climate goals of the COP28, including:

    “…simultaneously reduce the harmful environmental impacts of agriculture and to maximize the sector’s climate benefits.”

    Europe attempts to “reduce the harmful” impacts of farming by tying subsidies to required fallow farmland. The question is, how is the United States pushing forward?

    It’s already here

    Late last year, 12 state agriculture commissioners wrote a letter to six U.S. banks raising concerns about financial decisions the banks were making tied to climate change initiatives that negatively impact American farmers and ranchers. The six banks in question are a part of the United Nations-backed Net-Zero Banking Alliance or NZBA.

    The NZBA is “committed to financing ambitious climate action” with the intent that banks make financial decisions based on climate initiatives.

    The six U.S. banks are:

    • Bank of America
    • Citigroup
    • Goldman Sachs
    • JPMorgan Chase
    • Morgan Stanley
    • Wells Fargo

    RELATED: Mega Investment Firm BlackRock Plans Layoffs as Controversial ‘ESG’ Finally Faces Objection

    In the letter, the commissioners write:

    “Achieving net-zero greenhouse gas emissions in agriculture requires a complete overhaul of on-farm infrastructure – one of the goals of the NZBA.”

    They go on to illustrate the damage the NZBA will inflict on American agriculture:

    “Proposed net-zero roadmaps describe dramatic, impractical, and costly changes to American farming and ranching operations such as switching to electric machinery and equipment; installing on-site solar panels and wind turbines; moving to organic fertilizer; altering rice-field irrigation systems; and slashing U.S. ruminant meat consumption in half, costing millions in livestock jobs.”

    That last bit should sound familiar. It sounds a lot like pushing plant-based foods like COP28 or, dare I say it…eating bugs instead of beef…

    Boring but important

    If it’s not the banks that will bring American farmers to the streets in protest, it might be Congress. This year, Congress has to pass an updated Farm bill.

    The Farm Bill encompasses all manner of non-sexy policy items related to SNAP benefits and farm subsidies. These farm subsidies, similar to those in Europe, are increasingly tied to climate initiatives.

    Just as in Europe, the stranglehold on America’s heartland isn’t happening overnight, but in small, tiny moves throughout many years thanks to the persistent push of climate activists and international pressure from progressive European leaders. While the mainstream media brushes aside claims that European aristocrats and climate activists want to make us eat bug burgers and that techno-elites like Bill Gates gobbling up the largest amount of privately owned farmland in the country isn’t something to be concerned about, banks and congressmen are slowly encroaching on American ranchers and farmers to perpetuate their dangerous climate ideology.

    RELATED: Conservatives Are Going Crazy Over This Viral Protest Song By A Virginia Farmer

    Last October, the Department of Agriculture’s Household Food Security report revealed that one in eight households in America had experienced food insecurity in the previous calendar year. With that, I’ll leave you with this final question – what is the end goal of starving out Europeans and Americans by slowly killing off farming and ranching?

    Is it really about climate change, or is it about something else entirely?

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    USAF Retired, Bronze Star recipient, outspoken veteran advocate. Hot mess mom to two monsters and wife to equal parts… More about Kathleen J. Anderson

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  • Compact, swift typhoons are more impacted by global warming.

    Compact, swift typhoons are more impacted by global warming.

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    Newswise — A group from Nagoya University in Japan has found that larger, slower-moving typhoons are more likely to be resilient against global warming. However, compact, faster-moving storms are more likely to be sensitive. These findings suggest an improved method to project the strength of typhoons under global warming conditions. Their report was published in Geophysical Research Letters.

    Tropical cyclones are among the most dangerous weather systems in the world, causing disruption, damage, and death in East Asia. As global temperatures increase, so does the threat of typhoons. But projecting the strength and structure of such storms also becomes more difficult. Understanding changes in ocean response is essential to mitigate the worst effects of typhoons.

    One way to understand tropical cyclones is to examine the relationship between the atmosphere and the ocean. The ocean-atmosphere coupling relationship influences weather patterns, ocean circulation, and climate variability.

    This is especially important for typhoons as the intensity of tropical cyclones is linked to increases in sea surface temperature (SST). As the size of a cyclone increases, SST decreases, limiting its intensity. However, under global warming, the SST is higher. As a result, this could make a typhoon last longer.

    “The rise in sea temperatures is concerning because a typical compact, fast-moving storm, for example Typhoon Faxai in 2019, caused severe damage to eastern Japan,” warned lead researcher Sachie Kanada. “Our findings show the intensity of such typhoons can strengthen under global warming conditions.”

    To understand how global warming can affect typhoons, Kanada and fellow researcher Hidenori Aiki examined the buffering effect of atmosphere-ocean coupling on typhoons. They used the latest simulator of weather systems, an atmosphere-ocean model called CReSS-NHOES, to evaluate the effect of atmosphere ocean coupling on changes in the intensity of strong typhoons. CReSS-NHOES combines the cloud simulation model CReSS, developed at Nagoya University, with the oceanographic model NHOES, developed by the Japan Agency for Marine-Earth Science and Technology.

    The researchers used CReSS-NHOES to examine four powerful, but different-sized, typhoons in recent years: Trami (2018), Faxai (2019), Hagibis (2019), and Haishen (2020). These typhoons were all devastating; Trami and Faxai caused billions of dollars of damage and Hagibis led to the deaths of 118 people.

    Kanada and Aiki evaluated three scenarios: preindustrial era climate, a 2°C increase in SST, and a 4°C increase in SST. “We found that the degree to which typhoons strengthened per 1°C rise in SST varies significantly from typhoon to typhoon,” said Kanada. She was surprised by the change in hPa, a unit of pressure used in meteorology to measure atmospheric pressure and which represents the strength and intensity of a storm. “A typhoon, such as Trami, strengthens by only 3.1 hPa, while Faxai strengthens by as much as 16.2 hPa with a 1°C rise in SST.”

    The results of this study suggest that the atmosphere-ocean coupling effect buffers changes in storm intensity associated with global warming. But typhoons of different sizes may be affected differently. Storms with large eyes and small movement speeds cause SST to drop near their center, hindering their development. However, storms with small eyes and high movement speeds move away from the SST occurence. Such typhoons maintain constant heat at their center, increasing in intensity.

    Using these findings, the researchers created a new model to project the effect of tropical cyclones. They used a simple parameter called nondimensional storm speed (S0). Their model showed that S0 could distinguish between potentially destructive storms that are likely to strengthen under global warming and those that are resilient to the effects of global warming.

    “Currently, climate change projection research on typhoon intensity is conducted using models with coarse horizontal resolution or atmosphere-only models, which have difficulty reproducing the intensity and structure of strong typhoons,” Kanada explains. “This research using a high-resolution coupled regional atmosphere-ocean model can reproduce the intensity and structure of strong typhoons and the response of the ocean with high accuracy, so is expected to contribute not only to the quantitative projection of typhoon intensity under a warming climate, but also to the improvement of the accuracy of current typhoon intensity forecasts.”

    https://doi.org/10.1029/2023GL105659

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    Nagoya University

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  • The cause of recent cold waves over East Asia and North America was in the mid-latitude ocean fronts

    The cause of recent cold waves over East Asia and North America was in the mid-latitude ocean fronts

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    Newswise — If the world is warming, why are our winters getting colder? Indeed, East Asia and North America have experienced frequent extreme weather events since the 2000s that defy average climate change projections. Many experts have blamed Arctic warming and a weakening jet stream due to declining Arctic sea ice, but climate model experiments have not adequately demonstrated their validity. The massive power outage in Texas in February 2021 was caused by an unusual cold snap, and climate models are needed to accurately predict the risk of extreme weather events in order to prevent massive socioeconomic damage. In particular, climate technology leaders have recently set the ability to predict the climate of the next decade or so as an important goal.

    The Korea Institute of Science and Technology (KIST) announced that senior researcher Mi-Kyung Sung of the Sustainable Environment Research Center and professor Soon-Il An of the Center for Irreversible Climate Change at Yonsei University (President Seung-hwan Seo) have jointly discovered the role of mid-latitude oceans as a source of anomalous waves that are particularly frequent in East Asia and North America, paving the way for a mid- to long-term response to winter climate change.

    Ocean currents have a major impact on the weather and climate of neighboring countries as they transport not only suspended and dissolved matter but also heat energy. In particular, regions where temperatures change rapidly in a narrow latitudinal band, such as the Gulf Stream in the Atlantic Ocean and the downstream region of the Kuroshio Current in the Pacific Ocean, are called “ocean fronts,” and the KIST-Yonsei joint research team attributes the atmospheric wave response to the excessive accumulation of heat in these ocean fronts as the cause of the increase in extreme cold waves. From the early 2000s until recently, anomalous cold trend in East Asia coincided with the accumulation of heat near the Gulf Stream in the North Atlantic, and that in North America coincided with the intensification of heat accumulation near the Kuroshio Current. The oceanic frontal region acts as a thermostat to control the frequency of winter cold waves and anomalous high temperatures.

    The process of heat accumulation in oceanic frontal regions lasts from years to decades. During this time, a warming hiatus can occur in the continental regions that bucks the global warming trend. Conversely, during decades of ocean frontal cooling, continental regions appear to experience a sharp acceleration of warming. This suggests that the recent decadal cooling trend is essentially reinforced by temporary natural variability in the global climate system, and that we can expect unseasonably warm winter weather to become more prevalent as the heat buildup in the ocean front is relieved. These results are also evident in climate model experiments that vary the amount of heat accumulation near ocean fronts, showing that observations and climate model experiments are consistent in their conclusions, in contrast to conventional sea ice theory. This highlights the importance of accurately simulating ocean front variability in climate models to improve our ability to predict medium- and long-term climate change over the next decade.

    As global warming intensifies in the future and changes the structure of the ocean, these regional climate variations could change dramatically. Climate model experiments with increased greenhouse gases have shown that North America is likely to experience shorter and fewer warming hiatus, while East Asia is likely to experience more frequent intersections between warming hiatus and acceleration. These different continental responses are driven by the different oceanic responses of the Kuroshio Current and the Gulf Stream to global warming.

    “Applying the effects of ocean fronts revealed in this research to global warming climate models can improve climate change forecasts for the near future,” said Dr. Mi-Kyung Sung of KIST. “It will provide important references for long-term forecasts of winter energy demand and the construction of climate change response infrastructure to prevent climate disasters such as the 2021 Texas power outage.”

    ###

    KIST was established in 1966 as the first government-funded research institute in Korea. KIST now strives to solve national and social challenges and secure growth engines through leading and innovative research. For more information, please visit KIST’s website at https://eng.kist.re.kr/

    The research, which was funded by the Ministry of Science and ICT (Minister Jong-ho Lee) through the Mid-Career Researcher Support Project (2021R1A2C1003934), the Leading Research Center Support Project (2018R1A5A1024958), and the Ultra-High Performance Computing Utilization Advancement Project (2022M3K3A1094114), was published on November 27 in the international journal Nature Communications

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  • Environmental Progress: Kids Lead – Jim Hightower, Humor Times

    Environmental Progress: Kids Lead – Jim Hightower, Humor Times

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    One breakthrough for environmental progress was made recently by young climate activists in deep-red, rural Montana.

    “OK, boomer.” That’s a snarky phrase currently some use to mock 60- and-70-year-olds they consider to be cluelessly out of touch.

    Recently, however, teenagers and 20-somethings have turned that snide sentiment into a positive challenge directed at doomsayers of all ages who claim nothing can be done to stop runaway global warming: “OK, doomer,” these young climate activists respond. It’s their shorthand way of saying to do-nothing fatalists: Give up if you want, but please step aside while we organize and mobilize for climate sanity and environmental progress.

    Our globe’s fast-warming, catastrophe-creating climate is more than just another issue: It has become a generational cause for young people. Indeed, 62% of young voters support totally phasing out fossil fuels, and they’re channeling their anger about official inaction toward both political parties. Such feisty grassroots groups as Gen-Z for Change, Zero Hour, Black Girl Environmentalist and Our Children’s Trust are on the front lines — in the face of power, and on the move.

    As in all progressive struggles — from civil rights to labor to environmental justice — progress comes from sticking with principle, building incrementally on local victories and persevering against moneyed reactionaries.

    Already, one breakthrough by these young climate activists was made this year in deep-red, rural Montana. In a case filed by Our Children’s Trust, 16 children, ages 2-18, charged that a state law took away their right to challenge energy projects that increase global warming. Noting that Montana’s constitution establishes a right to “a clean and healthful environment,” state Judge Kathy Seeley ruled for the children… and for a clean, healthy climate future.

    Progress is not made by spectators and cynics, but by activists. And those who say that activism can’t produce change should not interrupt those who’re doing it.

    The Rattiest Right-Wing Congress Critter

    Vangunu, one of the Solomon Islands, is home to a giant species of rodent called the vika. Astonishingly, this rare and very large rat has jaws so powerful it can bite through a coconut shell!

    That made me think of Rep. Jim Jordan, the GOP’s rattiest far-right-wing Congress critter. There is no documented proof that this extremist partisan was raised on Vangunu, but he sure keeps gnawing on Joe and Hunter Biden, desperately trying to crack open a scandal that simply doesn’t exit. Vikas are powerful, but they’ve not been accused of being smart.

    Jordan, the former coach of a boy’s wrestling team, now has his team of House Republicans in a choke hold, draining national media attention to his goofy obsession with impeaching Joe. Impeach him for what? Well, says Jordan, we’re looking for a reason.

    He has it bass-ackwards — real impeachment proceedings start with specific charges of an official’s “high crimes and misdemeanors.” But Coach Jordan is perverting that constitutional requirement by first accusing Biden of high crimes, then holding hearings in hopes of finding one. But poor Jim — it turns out to be easier for him to bite through a coconut than to fabricate a Biden crime.

    But Jordan keeps gnawing, wasting Congress’ time, staff and credibility (plus millions of taxpayer dollars) scuttling down trails that go nowhere. Meanwhile, as he and the GOP House prioritize their clownish political agenda, they can’t perform the basics of government, which is simply to keep essential public services funded and functioning.

    Unable to govern, Republican leaders abruptly stopped working in the House in early December, saying they’ll get serious next year. But, uh-oh, the vika congressman has just announced he’ll hold more impeachment hearings next year so he can keep gnawing at the Biden coconut.

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  • Triggering positive points crucial for climate crisis resolution.

    Triggering positive points crucial for climate crisis resolution.

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    Newswise — Positive tipping points must be triggered if we are to avoid the severe consequences of damaging Earth system tipping points, researchers say.

    With global warming on course to breach 1.5oC, at least five Earth system tipping points are likely to be triggered – and more could follow.

    Once triggered, Earth system tipping points would have profound local and global impacts, including sea-level rise from major ice sheet melting, mass species extinction from dieback of the Amazon rainforest and disruption to weather patterns from a collapse of large-scale ocean circulation currents.

    The new commentary – published in One Earth by researchers from the Global Systems Institute at the University of Exeter – says positive tipping points must be triggered to help reach the levels of decarbonisation required. 

    “One reason for hope is that many of the tipping thresholds that are likely to be crossed first are so-called slow tipping systems, which can be briefly exceeded without a commitment to tipping,” said lead author Dr Paul Ritchie.

    “However, rapid decarbonisation that minimises the distance of any overshoot and – even more importantly – limits the time spent beyond a threshold is critical for avoiding triggering climate tipping points.”

    Dr Jesse Abrams said: “One mechanism for achieving the rapid decarbonisation levels required is ironically through positive tipping points, moments when beneficial changes rapidly gain momentum.”

    The research team point to the sales seen in electric vehicles, particularly across Scandinavia, as evidence for the capability of human systems exhibiting positive tipping points.

    Professor Tim Lenton added: “Under the correct enabling conditions, such as affordability, attractiveness and accessibility, Norway have managed to transition the market share of electric vehicles from under 10% to near 90% within a decade.”

    The article is entitled: “Tipping points: Both problem and solution.”

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  • Greenhouse emissions could skyrocket if methane escapes frozen prison

    Greenhouse emissions could skyrocket if methane escapes frozen prison

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    Greenhouse gas emissions could skyrocket if the permafrost on an Arctic island melts, scientists have found.

    Millions of cubic meters of methane are trapped under the permafrost on Svalbard island in Norway. Permafrost is a permanently frozen layer underneath the surface of the Earth. And in this case, it serves as a frozen prison for this catastrophic amount of methane.

    But the permafrost is rapidly melting due to the warming climate. This means that vast amounts of methane could escape into the atmosphere, according to a new study published in Frontiers in Earth Science.

    “At present the leakage from below permafrost is very low, but factors such as glacial retreat and permafrost thawing may ‘lift the lid’ on this in the future,” Thomas Birchall of the University Center in Svalbard, and lead author of the study said in a press release on the findings.

    Methane is a potent greenhouse gas emitted into the atmosphere from both human activities and natural processes. It is the second most significant contributor to climate change after carbon dioxide.

    Svalbard is very similar to the rest of the Arctic in terms of its geological and glacial history, according to the study. This means vast amounts of methane may be present elsewhere in the region.

    To study the permafrost, researchers used historical data to map the frost and the accumulation of methane beneath it. However, it remains a complicated topic of study due to its being extremely inaccessible to humans.

    But it is possible to measure using wellbore—holes drilled in the ground to retrieve resources such as oil and gas.

    Svalbard has widespread permafrost; however, it is patchier in certain areas. Ocean currents towards the island’s west mean it is warmer there, making the permafrost elsewhere thinner with more patches. Therefore, an escape of methane would be more likely here, as the permafrost is more likely to melt, releasing the potent gas.

    But even in areas where the permafrost is thick—such as in the island’s lowlands—there is potential for the gas to escape.

    Longyearbyen, Svalbard and (inset) a 3D illustration of methane. A study found that greenhouse gas emissions could skyrocket it methane escapes from the permafrost on the Arctic island.
    Suzi Media Production / vchal/Getty

    Scientists looked out for ice forming inside the wellbore, as well as changes in background gas measurements. They discovered abnormal amounts of pressure beneath the permafrost, which suggested it acted as a seal for the gas below.

    “All the wells that encountered gas accumulations did so by coincidence—by contrast, hydrocarbon exploration wells that specifically target accumulations in more typical settings had a success rate far below 50%,” said Birchall. “These things seem to be common. One anecdotal example is from a wellbore that was drilled recently near the airport in Longyearbyen.

    “The drillers heard a bubbling sound coming from the well, so we decided to have a look, armed with rudimentary alarms designed for detecting explosive levels of methane—which were immediately triggered when we held them over the wellbore.”

    Previous research has shown that the upper layer of permafrost around the world is thawing at a quicker rate with the warming climate. The question as to whether or how the deeper layer of permafrost is affected remains a mystery and very difficult to study.

    Do you have a tip on a science story that Newsweek should be covering? Do you have a question about permafrost? Let us know via science@newsweek.com.