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#tippingpoint — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #tippingpoint, aggregated by home.social.

  1. Day 63: Big setback as only ferry serving Wewak has broken engine. The pastor looking after me recommends an alternative route through the Sepik river.

    He leaves it late, but in the end he manages to find a place on the last truck of the day travelling to Angoram on the Sepik river. They leave me the privilege of travelling on the front of the truck where I have a comfy seat rather than the wooden benches all the other passengers use on the back. the scenery is very diverse from the ones I used to in Bougainville. there's no rainforest here, but rather grassland and bushes. it strikes me that even this very old, noisy and rusty truck is a luxury in comparison with the many who cannot afford it and walk over the main (and only) road. actually, we are lucky there's a road at all. This will stop at the Sepik river, as there's no bridge crossing over it.

    I get to Angoram after an 8-hour drive. I have no idea where to stay and find a place to sleep in the local church (along with rats & insects).

    youtube.com/shorts/xT5dboTbjP8

    #refusetofly #travel #slowtravel #decarbonise #climateemergency #globalwarming #climateBreakdown #collapse #TippingPoint #papuaisland #PNG #Wewak #Sepik #WestSepik #researcher #researcherlife #AFuoco

    I slow travel mainly to reduce my carbon footprint (by 10 times according to available estimates) but also to experience travel as most people in this world do.

  2. DeBriefed 8 May 2026: EU eyes fossil-fuel exemptions | Wind and solar save UK ‘£1.7bn’ | Amazon ‘tipping point’

    Welcome to Carbon Brief’s DeBriefed. An essential guide to the week’s key developments relating to climate change. ‘Leeway’ for…
    #Europe #EU #amazon #DeBriefed #EuropeanUnion #fossilfuel #RenewableEnergy #solar #tippingpoint #Tippingpoints #UKrenewableenergy #wind #windandsolar
    europesays.com/europe/35753/

  3. 'A collapse would shift the tropical rainfall belt on which many millions of people rely to grow their food, plunge western Europe into extreme cold winters and summer droughts, and add 50-100cm to already rising sea levels around the Atlantic.' #ecocide #climatecrisis #globalwarming #tippingpoint #environment #amoc #oceancurrents theguardian.com/environment/20

  4. PBS NewsHour - The Latest | How climate change has powered the heat wave blanketing much of the U.S. by Ali Rogin, Karina Cuevas

    A massive heat dome has been spreading across much of the United States this month, with temperatures reaching historic highs. But it's not an isolated spike. In recent weeks, the country has grappled with a series of extreme weather events. Ali Rogin spoke with Bernadette Woods Placky of Climate Central for our series, Tipping Point.

    Read more: pbs.org/newshour/show/how-clim

    #climatechange #unitedstates #heatdome #tippingpoint

  5. Risiko für irdische „Heißzeit steigt
    Klimaforscher warnen: Destabilisierung des Klimasystems wird wahrscheinlicher

    #Klimaforscher warnen: Das #Erdklima könnte dem Übergang zu einer neuen #Heißzeit näher sein als gedacht. Denn durch die zunehmende #Erwärmung und steigenden #Treibhausgas'werte hat sich das Risiko für ein Umkippen mehrerer Stellschrauben im #Klimasystem weiter erhöht. Positive #Rückkopplungen und #Fernwirkungen über Kontinente hinweg könnten dann einen #Kaskadeneffekt auslösen, der das Erdklima destabilisiert. Dann könnte die Erde in einen neuen Zustand geraten, der nach menschlichen Zeitmaßstäben irreversibel ist – eine Heißzeit.

    Einige der Klima-Stellschrauben könnten schon jetzt in ein neues Gleichgewicht gekippt sein. „Dies ist der Fall bei den Eisschilden #Grönland's und der #Westantarktis, für den borealen #Permafrost und die #Berggletscher“, berichten die Forscher. Auch der #Amazonas-#Regenwald stehe kurz vor dem Umkippen.

    scinexx.de/news/geowissen/risi

    #Kippelemente
    #Kipppunkte
    #TippingPoint
    #Klimakatastrophe

  6. Permafrost in climate change: Models predict #Arctic 's response to global warming

    When the #permafrost thaws, microorganisms begin to break down the material. This produces greenhouse gases: #CarbonDioxide (#CO2) or #methane, (#CH4) which has about 28 times the warming effect of CO2 on a time horizon of 100 years. These gases also escape from the ponds and lakes, where a lot of #carbon is decomposed as well.

    phys.org/news/2025-01-permafro

    #Cryosphere
    #ClimateChange
    #TippingPoint
    #GlobalWarming

  7. Humanity's Chance to Reverse #AmazonRainforest's Slide Toward #TippingPoint Is 'Shrinking'

    The world's largest #rainforest showed "ominous indicators," including #wildfires and #ExtremeDrought, in 2024.

    The Amazon, sometimes called the '#LungsOfThePlanet,' this year showed signs of further inching toward a much-feared tipping point, threatening the very existence of the world's largest rainforest.

    "Rampant wildfires and extreme drought ravaged large parts of the Amazon in 2024. The fires and dry conditions were fueled by deforestation and the El Niño weather pattern, and also made worse by climate change, according to the World Economic Forum. 'The number of fires reached its highest level in 14 years this September,' the group reported in October.

    "#Drought has also impacted the #AmazonRiver, causing one of the river's main tributaries to drop to its lowest level ever recorded, according to October reporting from The Associated Press. The drop in the river has negatively impacted local economies and #FoodSupplies.

    "Andrew Miller, advocacy director at #AmazonWatch, told the AP last week that the fires and droughts experienced across the Amazon in 2024 'could be ominous indicators that we are reaching the long-feared ecological tipping point.'

    "'Humanity's window of opportunity to reverse this trend is shrinking, but still open,' he said.

    "The Amazon plays a vital role in keeping the planet healthy. 150-200 billion tons of carbon are stored in the Amazon, and it also carries 20% of the earth's fresh water to sea.

    "According to the World Economic Forum, if the Amazon tipping point is reached, 'it will release billions of tonnes of #CO2 into the atmosphere through fires and plants dying off. This would further exacerbate climate change and make the 1.5°C goal impossible to achieve. It would also alter weather patterns, which would impact agricultural productivity and global food supplies.'

    "A paper published in the journal Nature in February indicates that up to half of the rainforest could hit a tipping point by the middle of the century. 'We estimate that by 2050, 10% to 47% of Amazonian forests will be exposed to compounding disturbances that may trigger unexpected ecosystem transitions and potentially exacerbate regional #ClimateChange,' explained the researchers behind the paper.

    "However, it wasn't all bad news out of the Amazon in 2024. According to the AP, the amount of #deforestation in #Brazil and #Colombia declined in this year. In Brazil, which houses the largest chunk of the Amazon, forest loss dropped 30.6% compared to the year prior, bringing it to the lowest level of destruction in nearly a decade.

    "The improvement is an about-face from a couple of years ago, when the country registered 15-year high of deforestation during the leadership of former #FarRight President #JairBolsonaro. Brazil is now led by the left-wing President Luiz Inácio #Lula da Silva, who—despite presiding over this drop in deforestation—has also come under scrutiny, as AP noted, by #environmentalists for backing projects that they argue could harm the environment."

    Source:
    commondreams.org/news/amazon-r

    #ClimateCatastrophe #EnvironmentalEmergency #SouthAmerica #SaveTheForests

  8. Unprecedented changes in Antarctica ice prompt researchers to issue emergency statement

    abc.net.au/news/2024-11-22/res

    Hundreds of polar researchers issue an emergency statement calling for urgent action to deal with the impacts of climate change in Antarctica.

    #Antarctica #Ice #SeaLevel #Emergency #ClimateCrisis #Catastrophy #Imminent #Researchers #ActionAlert #GHG #Hobart #CarbonSink #GlobalWarming #Runaway #TippingPoint #passed

  9. #Alaska #glacier outburst floods #Juneau, damages more than 100 homes

    The glacier flood from the #SuicideBasin swelled the #MendenhallRiver to record levels, causing destructive flooding in Juneau.

    By Sheri Walsh, UPI

    Published Aug 8, 2024 10:31 AM EDT

    Aug. 8 (UPI) -- "A #MeltingGlacier, overflowing from heavy rains in Alaska, unleashed a torrent of water on Juneau where more than 100 homes were damaged in what is being called an 'unprecedented' glacial lake outburst flood.

    "The glacier flood from the Suicide Basin swelled the Mendenhall River to record levels, causing destructive flooding in Juneau on Tuesday, nearly one year after the same river flooded on Aug. 7, 2023.

    "Glacial lake outbursts occur when a basin fills with water from melting snow, ice and rain -- after Juneau's heavy rainfall in July -- which overtopped the glacier, 'like water overflowing out of a full bathtub,' the city of Juneau explained last week in a warning to residents to prepare for #flooding and evacuations.

    "A U.S. Geological Survey camera captured the Suicide Basin glacial lake's gradual rise over the past month and rapid fall pictured Tuesday after the outburst sent water flooding into Juneau below."

    Read more:
    accuweather.com/en/weather-new

    #GlacialMelt #ClimateChange #GlobalWarming #TippingPoint

  10. "warming seawater intrudes between coastal ice sheets & the ground they rest on…expanding the cavities further in a #feedbackloop. This water then lubricates the collapse of ice into the ocean, pushing up #sealevels.
    a “very small increase” in the temp of the intruding water could lead to a “very big increase” in the loss of ice—ie, #tippingpoint behaviour."
    theguardian.com/environment/ar