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    TUHOKlimaticka zmena / Thank you so much for ruining my day
    PER2
    PER2 --- ---
    DZODZO: mne ten strip pripomnel cinu a jejich three gorges dam , uz tam jedou asi treti mesic zaplavy, jestli nekdo sledujete

    Sichuan, situated along the Yangtze, raised its emergency response to the maximum level on Tuesday to cope with a new round of torrential rainfall.

    The Yangtze Water Resources Commission, the government body that oversees the river, declared a red alert late on Tuesday, saying water at some monitoring stations was expected to exceed "guaranteed" flood protection levels by more than five metres (16.4 feet).

    The Three Gorges Project, a massive hydroelectric facility designed in part to tame floods on the Yangtze, is expected to see water inflows rise to 74,000 cubic metres per second on Wednesday, the highest since it was built, the Ministry of Water Resources said.

    a okenko do minulosti:
    https://en.wikipedia.org/wiki/1931_China_floods
    YMLADRIS
    YMLADRIS --- ---
    After two years of school strikes, the world is still in a state of climate crisis denial | Climate change | The Guardian
    https://amp.theguardian.com/commentisfree/2020/aug/19/climate-crisis-leaders-greta-thunberg

    .. Greta se mnou souhlasí. dala do toho dva roky a ne jen jeden jako já :) a nehybe se to

    TADEAS
    TADEAS --- ---
    “For this region, the current situation is historic. Normally it’s wise to avoid the region north of Greenland, because it’s home to the thicker and older ice, and virtually impassable. But now we’re finding extended stretches of open water, reaching nearly to the Pole.”
    https://twitter.com/ZLabe/status/1296129363679698944?s=19


    #MOSAiCexpedition Press Releas
    Today at 12:45 pm #Polarstern reached the #NorthPole. We followed a route to the north of Greenland–and through a region that, in the past, was densely covered with ice, including multiyear #ice.
    https://t.co/Pqy2oiqhA5


    Yikes -- “We made fast progress in a few days,” Rex told The Associated Press. “It’s breathtaking — at times we had open water as far as the eye could see.”
    https://t.co/SUxA3Z34IF


    Scientists on Arctic mission make unplanned detour to pole
    https://apnews.com/2b290e199aef10bd18683bb021133052


    TADEAS
    TADEAS --- ---
    SHINIGAMI
    SHINIGAMI --- ---
    SHEFIK: 78% = temer jako, vykon je samozrejme spickovy behem dne, kdy fouka a sviti najednou, o kapacite uloziste nejak nemluvi.

    PAD
    PAD --- ---
    SHEFIK: Super, dik! 30% energie navic by znamenala priblizne 15% redukce koncovych nakladu pro domaci FVE. Pomuze to, ale neni to takova revoluce, jak by se mohlo z toho clanku zdat. Fotovoltaika je dnes uz rentabilni, problem je spis kulturni (lidi tomu treba neveri nebo se jim panely nelibi), byrokraticky (uctovani po fazich a jine klacky pod nohy), nebo trzni (mala konkurence, trh pokriveny dotacemi, kdy je dodavka na klic nesmyslne predrazena). Maly system pro fotovoltaicky ohrev vody poridis za 40 tisic. Pri cene ~2.5kc/kWh a prumerne spotrebe 8kWh denne na ohrev TUV je ta splatnost cca 11 let. Bez dotace. Cili tohle by tu splatnost posunulo cca o 1-2 roky.

    Je to fajn, ale prulom bude zlevneni baterii. Pri dnesnich cenach davaji smysl jen, pokud je to tvoje hobby (tj. nepristupujes k tomu racionalne) anebo jses offgrid a nemas jinou moznost. Napr. tato nejmensi LiFePo 4.5 kWh baterka stoji 143kkc. Uvadi zivotnost 8000 cyklu, takze te jedna ulozena kWh vyjde na ~4koruny (zanedbavam ubytek kapacity - uvadi ze po tech 8000 cyklech by mela kapacita byt aspon 80%). To je v prumeru cena soucasne elektriny ze site ve spicce. A k te ulozene cene je treba pricist i naklady na FVE (rekneme mezi 1.5-3kc/kWh). Tj. kdyby baterie zlevnily o rekneme 30-40%, tak se vyplati uz kazdemu, kdo ma aspon prumernou spotrebu elektriny. Je to jeste kus cesty, ale verim, ze tam dojdem. Elektromobilita tohle vyrazne posune dopredu.
    TUHO
    TUHO --- ---
    California governor declares state of emergency as dozens of wildfires rage | World news | The Guardian
    https://www.theguardian.com/...2020/aug/18/california-wildfires-governor-declares-state-of-emergency
    SHEFIK
    SHEFIK --- ---
    bioenergy with carbon capture and storage, or BECCS

    Large-scale implementation of bioenergy with carbon capture, alone, would require from 300 million hectares of land—an area roughly equivalent to that of India—to 700 million hectares, the continent of Australia

    napr. pilotni projekt - soil to crop to carbon capture

    How Climate Change Strategies That Use Biomass Can Be More Realistic - Scientific American
    https://www.scientificamerican.com/...mate-change-strategies-that-use-biomass-can-be-more-realistic/

    In the flat farmland outside Decatur, Ill., a dump truck filled with ears of corn rolls into a warehouse at one end of an ethanol plant run by commodities giant Archer-Daniels-Midland Company. The corn is sent into a big fermentation vat that converts it to ethanol, which will be trucked to a refinery that will blend it with gasoline for sale nationwide. The fermentation process releases carbon dioxide, which is captured in a large flue, then sent by pipeline to a wellhead. Pumps send the gas deep belowground, where it will become trapped in sandstone rock.
    SHEFIK
    SHEFIK --- ---
    a naky spatny zpravy

    https://www.nature.com/articles/d41586-020-02266-9

    The carbon stored in soil could have a big impact on climate change. The global flux of carbon in and out of soils is six to ten times greater than the emissions of carbon dioxide produced as a result of human activities1,2. The inputs of carbon to soils from plant detritus (dead wood, leaves and roots) roughly balance the losses to the atmosphere produced by the respiration of soil microorganisms that feed on that material. However, just a 1% imbalance of global soil-carbon effluxes over influxes would equal about 10% of global anthropogenic carbon emissions. 
    SHEFIK
    SHEFIK --- ---
    bylo tu perovskite-on silicone. ale zajmava informace, ze v prodeji muze byt uz pristi leto a generuje az o 30% vic energie, nez soucasne panely - coz zas zamicha se studiema energetickyho renewable potencialu, viz diskuze s PADem

    https://ieefa.org/...rough-perovskite-based-solar-technology-could-hit-the-market-by-summer-of-2021/

    Oxford PV claims that the next-generation solar panels will be able to generate almost a third more electricity than traditional silicon-based solar panels by coating the panels with a thin layer of a crystal material called perovskite.

    The breakthrough would offer the first major step-change in solar power generation since the technology emerged in the 1950s, and could play a major role in helping to tackle the climate crisis by increasing clean energy.

    ...


    Typically, a silicon solar cell is able to convert up to about 22% of the available solar energy into electricity. But in June 2018, Oxford PV’s perovskite-on-silicon solar cell surpassed the best performing silicon-only solar cell by reaching a new world record of 27.3%. The perovskite-coated panels will appear different too. Instead of the blue tint usually associated with traditional silicon panels, Oxford PV’s panels will appear black and blend in better with rooftop slates.
    SHEFIK
    SHEFIK --- ---
    milion solar bifacial pohyblivych panelu, k tomu wind a jeste storage... tentokrat v chile. vykon temer jako blok temelina, postaveny do 4 let

    https://ieefa.org/aes-gener-plans-863mw-wind-solar-storage-project-in-chile/

    Located in the commune of Taltal in Antofagasta, Parque Terra will consist of a 350-MW wind farm, with 50 turbines of 7 MW each, and a 513-MW solar park comprised of 1,102,080 bifacial panels mounted on trackers. It will also have battery storage capacity.
    SHEFIK
    SHEFIK --- ---
    ze sveta vedy

    Catalyst recycles carbon dioxide into useful fuels - Futurity
    https://www.futurity.org/...m_source=rss&utm_medium=rss&utm_campaign=carbon-dioxide-catalyst-2422522

    In a study in Nature Communications, the researchers report a catalyst that can produce C2-plus compounds with up to 72% faradaic efficiency (a measure of how efficiently electrical energy is used to convert carbon dioxide into chemical reaction products).

    That’s far better than the reported efficiencies of other catalysts for C2-plus reactions, the researchers say. And the preparation process can be scaled up to an industrial level fairly easily, which gives the new catalyst potential for use in large-scale CO2 recycling efforts.

    ...

    Ultimately, such a catalyst will aid in large-scale recycling of CO2. The idea is to capture CO2 produced by industrial facilities like power plants, cement manufacturing, or directly from air, and convert it into other useful carbon compounds. That requires an efficient catalyst that is easy to produce and regenerate, and inexpensive enough to operate on an industrial scale. This new catalyst is a promising candidate, the researchers say.
    SHEFIK
    SHEFIK --- ---
    trocha investic k transformaci

    Energy storage investment to approach $10bn in 2025 – pv magazine International
    https://www.pv-magazine.com/2020/08/19/energy-storage-investment-to-approach-10bn-in-2025/

    The London-based forecaster has predicted storage deployment will hit 15.1 GW/47.8 GWh in 2025 and sees investment set to grow from an anticipated $4.2 billion this year to $9.5 billion in five years time’ – no mean feat given IHS has predicted battery module prices will fall 32% over the same period.
    SHEFIK
    SHEFIK --- ---
    par stripku ze sveta ropy

    Svět bude potřebovat méně ropy. Těžaři revidují ambiciózní plány - iDNES.cz
    https://www.idnes.cz/.../zahranicni/ropa-global-ni-poptavka-klesne.A200818_111258_eko-zahranicni_fih

    Do průzkumů a příprav těžby ropy na Falklandech už těžaři vložili stovky milionů dolarů, ale z projektu zatím nevymáčkli ani kapku ropy. Jeden z partnerů Premier Oil Plc začátkem roku přerušil práce na projektu a 15. července oznámil, že již odepsal investice v objemu 200 milionů dolarů s tím, že projekt zřejmě nikdy nepostoupí do další fáze.

    ...
    Pod tlakem na snižování emisí minulý měsíc francouzská společnost Total SE oznámila, že odepíše 8 miliard dolarů aktiv v souvislosti s těžbou, která představuje vysokou zátěž emisemi CO2. Jedna z největších petrochemických společností na světě nejspíš také zanechá část rezerv pod zemí.

    ...
    Konzultační společnost Rystad Energy AS předpokládá, že asi 10 procent světových využitelných zdrojů ropy, tedy kolem 125 miliard barelů, může zůstat ležet ladem. Firma očekává, že svět má už svůj ropný vrchol za sebou. „Firmy budou muset tento fakt přijmout,“ uvedl Muqsit Ashraf, ředitel společnosti Accenture.  
    SHEFIK
    SHEFIK --- ---
    bus2grid

    Londýnská garáž pro autobusy bude zkušební "elektrárnou" - Ekolist.cz
    https://ekolist.cz/cz/zpravodajstvi/zpravy/londynska-garaz-pro-autobusy-bude-zkusebni-elektrarnou

    Pokud by se vládou financovaný projekt Bus2Grid rozšířil po celém Londýně, mohl by odhadem dodávat elektřinu pro 150 000 domácností. Projekt bude spuštěn v listopadu a bude trvat tři roky.

    Systém pracuje na principu, že autobusy se dobíjejí, když je poptávka po elektřině nízká, a naopak vracejí elektřinu zpět do sítě, když je poptávka vysoká. Síť je tak mnohem efektivnější.
    LINKOS
    LINKOS --- ---
    GOJATLA: Buď sám tou změnou, kterou chceš vidět ve světě.“ — Mahátma Gándhí

    Zdroj: https://citaty.net/citaty/276458-mahatma-gandhi-bud-sam-tou-zmenou-kterou-chces-videt-ve-svete/

    :-)
    GOJATLA
    GOJATLA --- ---
    YMLADRIS: Jo, já zas chápu tvoje zklamání, vidím to podobně. Ale pořád doufám, že bude líp :-)
    YMLADRIS
    YMLADRIS --- ---
    GOJATLA: já se omlouvám, nesnažím se to shazovat. určitě je fajn, že XR udržuje povědomí
    GOJATLA
    GOJATLA --- ---
    YMLADRIS: Nejsem si tak jistý, že XR u nás nefunguje. Myslím, že nějaký vliv na rozhodování politiků už má. Babiš to myslím někde ublíženě komentoval, že se aktivisti kvůli klimatu přilepili na silnici. Nebo jednání uhelné komise, prý i hrstka protestujících je znát. Je to zatím málo, ale jsem rád, že tu XR je. Lidi budou mít kam jít, až pochopí co se děje.
    Kliknutím sem můžete změnit nastavení reklam