• úvod
  • témata
  • události
  • tržiště
  • diskuze
  • nástěnka
  • přihlásit
    registrace
    ztracené heslo?
    TUHOKlimaticka zmena / Destroying the Future Is the Most Cost-Effective
    ERGOSUM
    ERGOSUM --- ---
    Pro letadla a drony jsou teď podstatně tišší vrtule s vyšší účinností. Ovšem z principu nemají naklápěcí listy. Uvidíme jak se to promítne do elektráren. Mohly by fungovat při menších rychlostech větru, ale je tam horší mechanická regulace.
    NIMBUS
    NIMBUS --- ---
    NIMBUS: Možná to bylo v "Buy Now! The Shopping Conspiracy"
    NIMBUS
    NIMBUS --- ---
    TADEAS: V jakým to bylo dokumentu, jak to takhle zakázali někde na té vesnici v Anglii? Teď se mi to vykouřilo z hlavy.
    TADEAS
    TADEAS --- ---
    kousek od meho bydliste ted lidi nastesti udelali pritrz větru

    Jasný vzkaz. Stavbu větrných elektráren lidé v Černovicích v referendu odmítli - Pelhřimovský deník
    https://pelhrimovsky.denik.cz/zpravy_region/jasny-vzkaz-stavbu-vetrnych-elektraren-lide-v-cernovicich-v-referendu-odmitli.html
    TADEAS
    TADEAS --- ---
    Historic: Coal has been the dominant fuel source for electricity generation worldwide since the early 20th century. This era is now over, likely forever: Renewables overtook coal in the electricity mix for the first time on record 34.3% to 33.1%

    Global Electricity Mid-Year Insights 2025 | Ember
    https://ember-energy.org/latest-insights/global-electricity-mid-year-insights-2025/

    FB-IMG-1759910207201
    TADEAS
    TADEAS --- ---
    The US is set to cancel funding for two major direct-air capture plants | MIT Technology Review
    https://www.technologyreview.com/2025/10/07/1125207/the-us-is-set-to-cancel-funding-for-two-major-direct-air-capture-plants/
    SHEFIK
    SHEFIK --- ---
    China’s giant solar parks aren’t just changing the power mix—they may be changing the ground beneath them. Fresh field data point to cooler soils, extra moisture, and pockets of greening, though lasting ecological shifts will hinge on design and long-term care.

    ...

    Assessment of the ecological and environmental effects of large-scale photovoltaic development in desert areas | Scientific Reports
    https://www.nature.com/articles/s41598-024-72860-8

    Photovoltaic development has played a crucial role in mitigating the energy crisis and addressing global climate change. However, it has also had significant impacts on the ecological environment. To ensure the sustainable growth of the photovoltaic industry, it is essential to establish an indicator system to assess the ecological and environmental effects of photovoltaic development. This study utilizes the Driving-Pressure–Status–Impact-Response (DPSIR) framework to create an indicator system for evaluating the ecological and environmental effects of desert photovoltaic development. The study evaluates the ecological and environmental effects at the on-site (WPS), transitional zone (TPS), and off-site (OPS) areas of the Qinghai Gonghe Photovoltaic Park in China. The entropy weight method was utilized to calculate indicator weights, while the evaluation model and indicators were transformed uniformly to obtain standardized scores for ecological and environmental effects. and conducting a thorough analysis of the distribution characteristics and factors influencing the evaluation indicators’ scores. Overall, the large-scale development of desert photovoltaics in Gonghe County has had a positive impact on the ecological environment. The WPS had better ecological and environmental conditions than did the TPS and OPS, and the ecological and environmental evaluation levels of the WPS were categorized as “general” (0.439), while the ecological and environmental effect evaluation levels of the TPS (0.286) and OPS (0.28) were both “poor”, indicating significant room for improvement. Moreover, all indicators in the scheme layer, which are used to evaluate ecological and environmental quality, yielded higher scores for the WPS than for the TPS and OPS, demonstrating that photovoltaic development has a positive effect on desert area ecology and the environment.
    TADEAS
    TADEAS --- ---
    UN plastics treaty chair to step down with process in turmoil | Plastics | The Guardian
    https://www.theguardian.com/environment/2025/oct/07/un-plastics-treaty-chair-to-step-down-with-process-in-turmoil

    In August, global talks at the UN headquarters in Geneva to agree on a treaty to deal with accelerating plastic pollution collapsed after three years of negotiations. There is currently no deal and the future of the agreement is unclear.

    The chair’s sudden resignation leaves the plastic treaty in an even more uncertain position, and raises questions around the governance of the process.

    Vayas Valdivieso faced criticism from NGOs and member states during the latest stage of the talks for releasing a draft text, which was rejected by the majority of negotiators and described by the UK’s head of delegation, the minister Emma Hardy as the “lowest common denominator”. Ghana said the text would “entrench the status quo for decades to come”.
    TADEAS
    TADEAS --- ---
    Carbon offsets fail to cut global heating due to ‘intractable’ systemic problems, study says | Carbon offsetting | The Guardian
    https://www.theguardian.com/environment/2025/oct/06/carbon-offsets-fail-cut-global-heating-intractable-systemic-problems-study
    OT_
    OT_ --- ---
    ERGOSUM: Mikroplasty jsou dnes považovány za nejrozšířenější antropogenní kontaminant v evropské zemědělské půdě, přičemž v nejhorších případech koncentrace přesahují 0,1 % hmotnosti v povrchové vrstvě půdy.
    ERGOSUM
    ERGOSUM --- ---
    DZODZO: v kusech + nějak definovanou velikostí.
    význam například kolik nanoplastu z toho bude, jak rychle se to spláchne do moře, za jak dlouho to můžou sežrat mikroorganismy a takové věci.
    DZODZO
    DZODZO --- ---
    ERGOSUM: aky vyznam ma konkretne v tomto pripade uvadzat hmotnost? imo tu je vypovedajucejsia prave ta koncentracia v kusoch
    ERGOSUM
    ERGOSUM --- ---
    NIMBUS: Mikroplasty je obecné označení, užívané pro různorodé úlomky plastů o velikosti od 100 nanometrů či od 1000 nanometrů (podle různých definic) až po 5 milimetrů,
    Mikroplasty – Wikipedie
    https://cs.wikipedia.org/wiki/Mikroplasty

    Ten údaj prostě chybí. Je podstatný rozdíl mezi 10 částicemi 4mm a 400 nanometrů.
    NIMBUS
    NIMBUS --- ---
    ERGOSUM: neznáš míru parts per kilogram?
    ERGOSUM
    ERGOSUM --- ---
    TADEAS: "statisíce částeček v kile půdy" Ten údaj znamená co?
    Bez uvedení nějaké hmotnosti třeba v mg/t, nebo velikosti, to jsou nehmotné bezrozměrné body.
    CHOSIE: Nebo hnojení čistírenským kalem + kosmetikou.
    PALEONTOLOG
    PALEONTOLOG --- ---
    TADEAS: jsem rád,že nikdo tentokrát nefrflá, že jsou mikroplasty OT :D
    CHOSIE
    CHOSIE --- ---
    Ne že by těch zdrojů nebylo spousta a jak víme přichází to i s deštěm apod.
    CHOSIE
    CHOSIE --- ---
    TADEAS: neni/nebude toto spjato s
    TADEAS - kdy se kvůli pomalejšímu uvolňování obaluji syntetická hnojiva v plastu
    TUHO
    TUHO --- ---
    Pro milovniky podcastu, nova serie o klimatickych obstrukcich od Amy Westerweld na Drilled.
    Amy je v tomhle tematu naprosto TOP, rozhodne nepromeskejte.

    Podcasts - Drilled - S14, Ep4 | The Media As a Tool of Climate Obstruction | Drilled
    Podcasts - Drilled - S14, Ep4 | The Media As a Tool of Climate Obstruction | Drilled
    https://drilled.media/podcasts/drilled/14/s14-ep4
    Kliknutím sem můžete změnit nastavení reklam