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    TUHOKlimaticka zmena / Destroying the Future Is the Most Cost-Effective


    "Given the sheer enormity of climate change, it’s okay to be depressed, to grieve. But please, don’t stay there too long. Join me in pure, unadulterated, righteous anger."


    "I don’t want your hope. I don’t want you to be hopeful. I want you to panic. I want you to feel the fear I feel every day. And then I want you to act. Once you start to act, the hope is everywhere."

    "Our best scientists tell us insistently that a calamity is unfolding, that the life-support systems of the Earth are being damaged in ways that threaten our survival. Yet in the face of these facts we carry on as usual."

    “We’ve got to stop burning fossil fuels. So many aspects of life depend on fossil fuels, except for music and love and education and happiness. These things, which hardly use fossil fuels, are what we must focus on.”

    A nejde o to, že na to nemáme dostatečné technologie, ty by na řešení použít šly, ale chybí nám vůle a představivost je využít. Zůstáváme při zemi, přemýšlíme až moc rezervovaně. Technologický pokrok to sám o sobě nevyřeší. Problém jsme my, ne technologické nástroje.

    Rostouci hladiny oceanu, zmena atmosferickeho proudeni, zmeny v distribuci srazek a sucha. Zmeny karbonoveho, fosforoveho a dusikoveho cyklu, okyselovani oceanu. Jake jsou bezpecnostni rizika a jake potencialni klady dramatickych zmen fungovani zemskeho systemu?
    Ale take jak funguji masove dezinformacni kampane ropneho prumyslu a boj o verejne mineni na prahu noveho klimatickeho rezimu post-holocenu.
    rozbalit záhlaví
    TADEAS
    TADEAS --- ---
    The Trump administration is... - Alt National Park Service
    https://www.facebook.com/AltUSNationalParkService/posts/1172892791547578

    The Trump administration is moving from denying climate change to rewriting it. Energy Secretary Chris Wright, a longtime oil industry executive, just announced plans to “update” past National Climate Assessments, the gold-standard, peer-reviewed reports that lay out the risks of the climate crisis in detail.

    Scientists are calling this their “worst fears” come true. Why? Because this isn’t about adding new data, it’s about erasing inconvenient truths. The administration has already:

    - Fired hundreds of scientists working on the next report.
    - Pulled past climate reports from public websites.
    - Released a so-called “study” by climate contrarians that downplays the danger of carbon pollution.

    This isn’t the first time we’ve seen political leaders try to rewrite reality. From the Bush administration editing climate reports in the 2000s, to authoritarian regimes rewriting history books, the tactic is always the same. Manipulate the facts so you can justify harmful policies.

    Climate scientist Michael Mann compared it to “exactly what Joseph Stalin did”, because Stalin was infamous for altering historical records, airbrushing people out of photos, and replacing facts with state-approved propaganda.

    And remember this isn’t just any official doing this. It’s an oil man in charge of the Department of Energy, reshaping science to serve the fossil fuel industry.
    Once you change the official record, you can gut regulations, strip protections, and pretend the crisis doesn’t exist. It’s not just science under attack, it’s the truth.
    ROGER_WILCO
    ROGER_WILCO --- ---
    Carbon emissions aren't falling, but who is to blame? | Alan Kohler | ABC NEWS
    https://www.youtube.com/watch?v=iqfEJ1tY1yI
    TADEAS
    TADEAS --- ---
    Trump couldn’t get it passed... - Alt National Park Service
    https://www.facebook.com/share/1CEeHbqLqw/

    Trump couldn’t get it passed in his big 💩 bill, so now here are his executive orders.

    Let’s break down what Trump’s new AI executive orders actually mean. On July 23, the administration issued a sweeping directive to “facilitate the rapid and efficient buildout” of AI infrastructure by, in its own words, “easing Federal regulatory burdens.” One order explicitly calls on agencies to “streamline environmental reviews and permitting” by using existing exemptions or creating new ones. In practice, that means fewer safeguards, less public input, and fast-tracked approval for massive data center construction, even on federal land.

    What’s more, the administration brags that it “revokes a Biden-era Executive Order that would have saddled AI data center development … with pages of DEI and climate requirements.” This signals a wholesale retreat from environmental accountability. These data centers are notoriously energy and water intensive, using millions of gallons of water daily and consuming electricity at rates that rival entire cities. And under this new policy, they can now be built without the oversight meant to protect air quality, local ecosystems, and public health.

    We’re already seeing the real-world impact. In South Memphis, particularly in Boxtown, a neighborhood long burdened by industrial pollution, residents are now facing a new threat: up to 35 unpermitted methane gas turbines powering xAI’s “Colossus” supercomputer. These turbines emit massive quantities of nitrogen oxides and formaldehyde, smog-forming and carcinogenic pollutants that have increased local ozone by 30 to 60 percent and worsened asthma rates in a community already leading the state in emergency asthma visits. Advocacy groups, including the NAACP and the Southern Environmental Law Center, issued a Clean Air Act notice, calling the site potentially “the largest industrial source of smog-forming pollutants in Memphis.” Residents report rising cases of respiratory illness, days too unhealthy to be outside, and a cancer risk four times the national average. Although local officials recently approved a turbine permit, the very next day brought a Code Orange air alert, underscoring the mounting public health crisis tied to unchecked AI development.

    The orders don’t stop there. They also cancel major clean energy infrastructure, like the 4.9 billion dollar Grain Belt Express transmission line, and steer AI growth toward fossil fuels and nuclear instead of renewables. This could severely hinder U.S. climate goals and lock in decades of carbon-heavy infrastructure. Taken together, the language of these executive orders makes it crystal clear: this isn’t just about AI, it’s a full-speed deregulation plan that prioritizes corporate expansion over the health of American communities.
    XCHAOS
    XCHAOS --- ---
    Gas flaring created 389m tonnes of carbon pollution last year, report finds | Fossil fuels | The Guardian
    https://www.theguardian.com/environment/2025/jul/18/gas-flaring-created-389m-tonnes-carbon-pollution-last-year-report
    TADEAS
    TADEAS --- ---
    Next EU climate target to allow carbon offsets from 2036, draft shows – POLITICO
    https://www.politico.eu/article/eu-comission-climate-target-2036-plan/

    The European Commission will permit countries to outsource a portion of their climate efforts to poorer countries from 2036, according to a draft proposal obtained by POLITICO.

    The EU executive plans to present the bloc’s 2040 emissions-reduction target on Wednesday after several months of delay. The goal will be set at 90 percent below 1990 levels, the draft amendment to the European Climate Law shows.

    But as POLITICO reported in mid-June, the Commission intends to meet up to 3 percentage points of the new target with international carbon credits, despite fierce criticism from its own scientific advisers. This plan aligns with Germany’s position on the 2040 goal.
    SHEFIK
    SHEFIK --- ---
    Some species of fig trees store calcium carbonate in their trunks – essentially turning themselves (partially) into stone, new research has found. The team of Kenyan, U.S., Austrian, and Swiss scientists found that the trees could draw carbon dioxide (CO2) from the atmosphere and store it as calcium carbonate ‘rocks’ in the surrounding soil.

    The research is being presented this week at the Goldschmidt conference in Prague.

    The trees – native to Kenya – are one of the first fruit trees shown to have this ability, known as the oxalate carbonate pathway.

    Fig trees convert atmospheric CO2 to stone | EurekAlert!
    https://www.eurekalert.org/news-releases/1089863
    SHEFIK
    SHEFIK --- ---
    Z cyklu seriozne #doomed

    Major reversal in ocean circulation detected in the Southern Ocean, with key climate implications | Institut de Ciències del Mar
    https://www.icm.csic.es/en/news/major-reversal-ocean-circulation-detected-southern-ocean-key-climate-implications?

    “We are witnessing a true reversal of ocean circulation in the Southern Hemisphere—something we’ve never seen before,” explains Antonio Turiel, ICM-CSIC researcher and co-author of the study. “While the world is debating the potential collapse of the AMOC in the North Atlantic, we’re seeing that the SMOC is not just weakening, but has reversed. This could have unprecedented global climate impacts.”

    According to the research team, the consequences of this reversal are already becoming visible. The upwelling of deep, warm, CO₂-rich waters is believed to be driving the accelerated melting of sea ice in the Southern Ocean. In the long term, this process could double current atmospheric CO₂ concentrations by releasing carbon that has been stored in the deep ocean for centuries—potentially with catastrophic consequences for the global climate.
    ...
    “The new processor has allowed us to obtain surface salinity data of unprecedented quality in this region,” explains Verónica González. “Thanks to this improvement, we can now provide a coherent explanation for the rapid Antarctic sea ice loss that had puzzled the scientific community.”
    CHOSIE
    CHOSIE --- ---
    S předpokladem, že další zrychlení nebude probíhat.
    A dává smysl vzhledem k tomu, že přes 50% všech emisí bylo emitováno za posledních ~40 let a efekt kdy se emise projeví (carbon lag) zabere nějakých 30 let.

    https://assets-eu.researchsquare.com/files/rs-6079807/v1_covered_209e5182-d9a5-4305-a4e0-70204151d2b3.pdf?c=1744822997
    SHEFIK
    SHEFIK --- ---
    Burning wood for heat emits more CO₂ than coal - BirdLife International
    https://www.birdlife.org/news/2025/07/02/too-hot-to-handle-burning-wood-for-heat-emits-more-co%e2%82%82-than-coal/

    Climate impact: Burning biomass releases significant greenhouse gases, especially when the loss of forest carbon sinks is taken into account. This means that bioenergy, especially from forests, can be more polluting than the fossil fuels it’s meant to replace.

    Resource limitation: There isn’t enough sustainable biomass to meet Europe’s growing demand. Bioenergy competes with land needed for food, materials like wood products, and biodiversity.

    Economic risks: As demand rises but supply stays limited, energy prices may increase, threatening affordability for households and stability for industries.

    Health impacts: Burning wood and other biomass produces fine particulate matter, contributing to air pollution and associated health risks.

    Reduced ecosystem services: Harvesting biomass reduces biodiversity and the ability of natural ecosystems to provide essential services like clean water, fertile soil, and climate regulation.
    SHEFIK
    SHEFIK --- ---
    Plants’ secret second roots rewrite the climate playbook | ScienceDaily
    https://www.sciencedaily.com/releases/2025/06/250620231806.htm

    Beneath the forest floor lies an overlooked secret: many plants grow a second set of roots far deeper than expected sometimes over three feet down tapping into hidden nutrient stores and potentially locking away carbon. A new study using deep-soil data from NEON reveals that these "bimodal" rooting systems are more common than previously believed and may play a powerful role in stabilizing ecosystems and fighting climate change
    TADEAS
    TADEAS --- ---
    World faces new danger of ‘economic denial’ in climate fight, Cop30 head says | Cop30 | The Guardian
    https://www.theguardian.com/environment/2025/may/28/andre-correa-do-lago-cop30-interview-climate-crisis

    The world is facing a new form of climate denial – not the dismissal of climate science, but a concerted attack on the idea that the economy can be reorganised to fight the crisis, the president of global climate talks has warned.

    André Corrêa do Lago, the veteran Brazilian diplomat who will direct this year’s UN summit, Cop30, believes his biggest job will be to counter the attempt from some vested interests to prevent climate policies aimed at shifting the global economy to a low-carbon footing.

    “There is a new kind of opposition to climate action. We are facing a discredit of climate policies. I don’t think we are facing climate denial,” he said, referring to the increasingly desperate attempts to pretend there is no consensus on climate science that have plagued climate action for the past 30 years. “It’s not a scientific denial, it’s an economic denial.”

    This economic denial could be just as dangerous and cause as much delay as repeated attempts to deny climate science in previous years, he warned in an exclusive interview with the Guardian.
    XCHAOS
    XCHAOS --- ---
    ARETTA: o tom se tu už mluvilo, ale háček je asi v tom, kolik hořící severské tajgy se promění na biouhel a kolik prostě na čmoud.

    Aby bylo jasné, já teda projekt skladování kubického kilometru dřeva neprosazuju, jen poukazuju na rozsah, ve kterém by carbon capture bylo nutné dělat.

    Co se týče těch požárních průseků v tajze, ty stejně bude nutné udělat, v Kanadě i v Rusku, budou to nejspíš stovky až tisíce kilometrů průseků, a pokud ty vykácené stromy v průsecích neodvezou (což by samo o sobě mělo uhlíkovou stopu), ale prostě jen nějak zahrnou zeminou na místě, tak je to taky carbon capture - nevzhledný, barbarský, ale pořád v rámci měřítek geoinženýringu mi to přijde jako menší zlo. Samozřejmě nějaký lesní inženýr by musel spočítat, jak široké a jak četné průseky skutečně dávají smysl (ono když by se udělal grid 10x10 km, tak to, že shoří 100 km2 lesa, je pořád dost průser, zase když to bude grid 1x1 km, tak aby z toho lesa vůbec něco zbylo...
    BRETA
    BRETA --- ---
    XCHAOS: jako jo, carbon capture byznys má rozhodně slušnou budoucnost.

    ...

    Solving industrial carbon emissions is not just a climate necessity—it's also a business opportunity. According to the International Energy Agency, carbon capture will need to reach 1.6 billion tonnes per year by 2030 to stay on track for net zero goals.
    SHEFIK
    SHEFIK --- ---
    Záchrana planety je tu? Izraelci umí odstát tunu CO2 za 70 dolarů - Seznam Zprávy
    https://www.seznamzpravy.cz/clanek/tech-technologie-zachrana-planety-je-tu-izraelci-umi-odstat-tunu-co2-za-70-dolaru-276873

    Levnější řešení k odstraňování skleníkového plynu, který přispívá k oteplování, a tak i klimatické změně, představil izraelský startup RepAir Carbon. Odstranit jednu tunu uhlíku z atmosféry by s ní mělo vyjít na 70 až 80 dolarů, zatímco u známějších firem jako Climeworks ze Švýcarska anebo Carbon Engineering z Kanady to je okolo 600 dolarů za tunu.

    „Ta technologie je opravdu novější ve srovnání s procesy záchytů, které se objevily v 90. letech nebo i před 10 lety. Trik je v tom, že abychom mohli zachytit oxid uhličitý, tak potřebujeme zásaditý roztok. Ty předchozí technologie fungují tak, že hydroxidové ionty v roztoku jsme museli přidávat, kdežto v této technologii se ionty generují pomocí katodické redukce,“ uvádí pro SZ Tech v úvodní videoreportáži Eva Pluhařová z Ústavu fyzikální chemie Jaroslava Heyrovského, která se zachytáváním a přeměnou oxidu uhličitého na užitečné suroviny také zabývá.
    ...
    Tím, že tato vylepšená technologie nepoužívá energii pro ohřev rozpouštědla, ale na katodickou redukci a proces v ní probíhá setrvale, tak spotřebuje o 70 procent méně energie než dosavadní zařízení. A s cenou od 70 do 80 dolarů za jednu zachycenou tunu uhlíku se dostává až na cenovou úroveň emisní povolenky, která letos v Evropské unii v průměru vychází na 72 eur za tunu.
    ...
    Izraelský startup RepAir Carbon, který vznikl teprve v roce 2020 a investoři dosud na jeho vývoj dali 29,5 milionu dolarů, chce svou vyvíjenou technologii instalovat nejdřív příští rok v Řecku, kde plánuje odčerpávat 100 tisíc tun uhlíku z ovzduší za rok. A na stejnou kapacitu chce dojít také ve Francii a na poloviční také v Africe - tam ještě ale neuvedl, kdy je instaluje.
    SHEFIK
    SHEFIK --- ---
    Nakonec bude Cina svetovym leadrem v dekarbonizaci. Kdo by to pred par lety rekl...

    China's CO2 emissions have started falling – is this finally the peak? | New Scientist
    https://www.newscientist.com/article/2480289-chinas-co2-emissions-have-started-falling-is-this-finally-the-peak/

    China, the world’s largest emitter of carbon dioxide, has seen a slight decline in those emissions over the past twelve months, even as demand for power has gone up. This is an encouraging sign the country’s massive buildout of clean energy has begun to displace fossil fuels – but emissions could still surge again.

    That is according to an analysis of China’s economic and energy data by Lauri Myllivirta at the Centre for Research on Energy and Clean Air, a research organisation in Finland. According to the report, published in Carbon Brief, China’s CO2 emissions have declined by 1 per cent over the past 12 months; in the first quarter of 2025 alone emissions declined by 1.6 per cent relative to last year.
    ...
    This isn’t the first time China’s CO2 emissions have dipped. For instance, they dropped in 2022 as the economy came to a standstill during covid-19 lockdowns. But this is the first time emissions have fallen even as the country has used more power. “That, of course, means the current fall in emissions has a much better chance of being sustained,” says Myllivirta.

    This is mainly a consequence of China’s record build-out of solar, wind and nuclear power, which is beginning to eat into the total electricity generated by burning fossil fuels. Wider economic shifts away from cement and steel production, which are carbon-intensive industries, have also contributed to the decline. Another factor is the jump in the share of people driving electric vehicles, which has cut into the demand for oil.

    If China maintains these trends, its carbon emissions could continue to fall. A sustained drop would indicate the country has passed peak emissions, putting it several years ahead of its 2030 target. The achievement would represent a substantial physical and psychological milestone for efforts to tackle climate change, says Myllivirta.
    XCHAOS
    XCHAOS --- ---
    In March (2025?), 440 winter and summer Olympians representing more than 90 countries and 50 sports wroteExternal link an open letter to candidates for the presidency of the International Olympic Committee. They expressed concern about the risks that climate change poses to many sports and called for the organisation to take more action to fight climate change. This included setting standards for sponsorships, upholding sustainable practices, and strengthening commitments to cut carbon emissions.
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