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    TUHOKlimaticka zmena / Thank you so much for ruining my day


    "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
    YMLADRIS
    YMLADRIS --- ---
    SHEFIK: myslela jsem na tebe, kdyz jsem to psala, :) , ale ono by to chtelo proverit, zda Elimu vubec uz nejake predpovedi vysly, zamilovat se do vertical farming umi kazdej ...
    SHEFIK
    SHEFIK --- ---
    YMLADRIS: me to prijde vic nez rozumny :)

    az na ten global chaos.. ale samozrejme stat se muze vsecko
    YMLADRIS
    YMLADRIS --- ---
    technooptimistický Eli Dourado (nemá ani stránku na wikipedii, takže nevím jak moc je věrohodný)

    geotermální

    What is more plausible (než vítr, slunce, jádro, které diskutoval výše) this decade is enhanced and advanced geothermal systems. The legacy geothermal industry is sleepy, tapping energy at traditional volcanic hydrothermal hotspots—forget about it. The next generation of the industry, however, is a bunch of scrappy startups manned by folks leaving the oil and gas industry. The startups I have spoken to think with today’s technology they can crack 3.5¢/kWh without being confined to volcanic regions. With relatively minor advancements in drilling technology compared to what we’ve seen over the last decade, advanced geothermal could reach 2¢/kWh and become scale to become viable just about anywhere on the planet. Collectively, the startups are talking about figures like hundreds of gigawatts of generation by 2030. I’m watching this space closely; the Heat Beat blog is a great way to stay in the loop. As I wrote last month, permitting reform will be important.

    fúze

    Fusion continues to make technical progress. I expect we will get a demonstration of energy-positive fusion in this decade from one of several fusion startups or perhaps Lockheed Martin’s compact fusion reactor. But again: a demonstration is far from a change that transforms society. It will take further decades to deploy reactors onto the grid. By the time fusion gets there, the energy market will be quite different from when we started working on fusion reactors in the 1940s. Wind, solar, and hopefully geothermal will make electricity pretty cheap, and fusion will struggle to compete.

    Consider: around half the cost of an advanced geothermal plant is drilling, and half is conversion equipment. Suppose the plant is amortized over 30 years (although many geothermal plants last longer), and after that period the conversion equipment needs to be replaced. But the hole in the ground does not need to be replaced! That means for the next 30 years, electricity can be generated at half the initial cost. Geothermal wells we dig this decade could be producing at less than 1¢/kWh by the 2050s. That is a tough market for fusion to break into. But fusion will still be a great source of power in applications where other sources aren’t available, such as in space.

    letectvi

    Hydrogen fuel is much better than batteries, but still not as energy dense as fossil fuels or SAF, and so my money is on SAF, and particularly on fuel made from CO₂ pulled from the atmosphere. It is easy to convert atmospheric CO₂ to ethanol in solution; and it is easy to upgrade ethanol into other fuels. But it is hard to separate ethanol from water without using a lot of energy—unless you have an advanced membrane as Prometheus Fuels does. I have written about Prometheus before and continue to follow them closely. Their technology could decarbonize aviation very suddenly.

    huge fan of supersonics / ale to se nestihne ve 2020

    urban air mobility companies / asi to na co veri XCHAOS

    A key question in my mind regarding urban air mobility is whether regulations will allow autonomy.

    Drone delivery is likely in the 2020s.

    The big story in space technology for the next 10 years is Starship, as it will enable just about everything else.

    Starlink jako money printer - řešení pro 4 procenta rurálních lidí, in flights wifi a net na kontejnerovych lodich. 40x vetsi zisky nez ma SpaceX z vesmirneho byznysu, tj rozvoj SpaceX

    těžení na asteroidech v této děkádě nebude

    chaos

    I could easily see, for example, the US deciding we actually don’t need an alliance with the Saudis after all, considering they are journalist-dismembering savages. If the US pulls out of Saudi Arabia, war between the Saudis and the Iranians becomes likely. Which means oil shipments to Asia get disrupted. Which means global chaos.

    auta

    One area where batteries may not work (aside from aviation, already discussed) is trucking. Towing really heavy loads requires a lot of energy—hydrogen fuel cells will be more suited to interstate trucking. The transition from diesel to hydrogen in trucking will likely not be as automatic as the transition from gas to batteries in cars. It’s possible that truckers will need a bit of a push.

    air pollution will plummet

    Fewer premature births, fewer cases of asthma, fewer cancers, fewer mystery illnesses.

    autonomic vehicles

    A decade is a long time, so I am reasonably confident it will happen in the 2020s. It could save a lot of lives. Autonomy, too, will accelerate the adoption of electric vehicles, as fleet companies will prefer the low maintenance costs of battery or fuel cell vehicles.

    IT

    custom silliocon, systems on a chip .. revoluce podobna prechodu z jednotlivych polovodicu na integrovane obvody

    The 2020s will be the decade that makes or breaks cryptocurrency. - cautiously optimistic

    augmented reality will be widely deployed
    The need for the glasses to understand context could result in much smarter digital assistants than today’s Siri, Alexa,

    Miscellaneous
    I have an irrational love of vertical farming.

    Speaking of food, I predict plant-based “meat” will flop, but lab-grown real meat is worth keeping an eye on. Until then, eat humanely-raised grass-finished cows.

    It all depends on execution. The underlying science is there. The engineers are willing. Even the funding is available in most cases. But, as a society, how much urgency do we feel? Our culture does not prioritize progress—it fights, destructively, for status. And our politics reflects our culture.

    I want to go faster.


    Notes on technology in the 2020s | Eli Dourado
    https://elidourado.com/blog/notes-on-technology-2020s/
    TADEAS
    TADEAS --- ---
    PAD: mohl by to byt udaj opravdu k ty pitny, tzn. vycisteny a domineralizovany vode, pak by byl limit tej mineralizacni filtr pripadne upravna pH.
    TADEAS
    TADEAS --- ---
    PAD: popravde ted nevim, co je to presne za udaj. vstup kondenzatu zalezi na velikosti budovy (mnozstvi prochazejiciho vzduchu), destovka je omezena strechou/strechama a akumulacnim prostorem, ta ultrafiltrace (seccua urspring) neni vubec limitem... takze nevim, muzu se zeptat nebo ti hodit vypocty pro nasi budovu. prakticky vsechna ta voda nakonec odchazi vyparem z komposteru nebo spotrebovanim v kuchyni. a mezitim se vyuzije na mycku a prani, pak splachnuti. voda na myti v podstate cirkuluje, jen cast odchazi jako odpad z ultrafiltrace, takze ten obeh je co se tyce potrebnyho vstupu hodne nizko.
    PAD
    PAD --- ---
    TADEAS: U vykonu pro pitnou vodu uvadi 29m3/rok. To je zastaraly udaj, nebo pocitate s takto malou spotrebou?

    NyrdenCore Brochure 1.2.pdf - Disk Google
    https://drive.google.com/file/d/1owNmHlngAVOsnz3yejLQ_NkdBMQGyXNB/view
    LINKOS
    LINKOS --- ---
    TUHO: to je asi na nejakyho chemika, ale fosfaty škodily hlavně tim, že hnojily naše potoky a pak se nám tam mnohem více rozjížděly sinice a tak. Mimochodem za zákaz fosfátů se u nás zasadila tahle pani:
    https://cs.wikipedia.org/wiki/Yvonna_Gaillyov%C3%A1?wprov=sfla1
    TADEAS
    TADEAS --- ---
    TUHO: odpad jde pres hrunou filtraci a lapac tuku, pak s s nim splachuje, to jde do komposteru, voda se odparuje. fosfaty jsiu snad zakazany, a kazdopadne, cim vic je materialovej cyklus lokalizovanej, tim vic clovrk ma na taliri co do nej pousti, to je jedna z motivaci to delat :)
    TUHO
    TUHO --- ---
    TADEAS: pracka, mycka - odpad z mycky se da kompstovat? :-o mel jsem za to, ze fosfaty z mycich prostredku v mycce jsou celkem unfriendly...
    TADEAS
    TADEAS --- ---
    LINKOS: viz TUHO TADEAS, nejspis budem pilotni projekt (koukni na web, ty systemy jsou tam podrobne popsany), zdroj vody pro dum je pouze destovka plus kondenzat z TC (nemalej zdroj), jde to pres ultrafiltraci (seccua) a mineralizaci, mas top kvalitni pitnou vodu. voda z myti se zpetne cisti a recirkuluje taky timhle zpusobem. pracka, mycka - tam probiha jen hruby cisteni, voda ze poouziba do lowflush zachodu, jejich obsah se kompostuje (indoor kompostery). je to takovy integrovany nakladani s vodou a odpadama. v podstate vstup akorat destovka a vzdusna vlhkost, vystup procesu kompost, bioplyn, digestat. so cool ,)
    LINKOS
    LINKOS --- ---
    TADEAS: to mě zajímá, jak máš vyřešené to zachytávání dešťovky, k čemu to chceš používat a jak to chceš čistit?
    TADEAS
    TADEAS --- ---
    SHEFIK: zalezi co chces, jaky hlediska resia a jakou maj prioritu ,) ... my treba na jednom domku s plochou strechou a na plochou cast strechy jinyho domu davame zelenou strechu, hodne nas na tom zajima ten estetickej aspekt, tam kde na to koulas zeshora je to proste pekny. ty porizovaci naklady jsou docela vysoky, ale je tam dotace, strecha ie sice tezsi a konstrukce tomu ma byt prizpusobena ale neni to nic zasadniho. jinde se snazime dohodnout s nekterym dodavatelem FV strech, coz ma tu vyhodu ze dotace na FV se kombinuje s vydajem na tu krytinu, zaroven se lip/vic zachytava voda (coz my chcem, mame pro ni vyuziti - skrz ultrafiltraci a mineralizaci jde do obehu, nezasakujem). u RD mi ta cerna strecha (panely) neprijde moc kriticka, ta izolace (vuci teplu) se stejne resi jinde a je dostatecna. ma ti mraky ohledu, pokud se to zameri jen na tu pomoc pro mesta, aby neabsorbovaly tolik tepla, tak ma asi pravdu :)
    SHEFIK
    SHEFIK --- ---
    hm. je nekdo, kdo se v tematu vyzna? ma smysl zelenou strechu mit, nebo je lepsi mit bilou bezudrzbovou, jak pise clanek?

    Jiří Svoboda: Zelené střechy – dobré řešení pro města? - Ekolist.cz
    https://ekolist.cz/...cistika/nazory-a-komentare/jirin-svoboda-zelene-strechy-dobre-reseni-pro-mesta
    DZODZO
    DZODZO --- ---
    LINKOS: asi iba adware, ale eset mi to zablokoval :) ale dobry serialek, kedysi som to pozeraval

    Threat found
    This web page contains potentially dangerous content.
    Threat: JS/Adware.TerraClicks.A application

    GLOBETROTTER: vidis a mne sa v praci smeju, ze chodim v 10 rokoch starych handrach a trickach s rozparanymi rukavmi, ale ma to hned 2 vyhody, jednak usetrim kopu vody potrebnej na vyrobu oblecenia keby ho striedam napr. kazde 2 roky a jednak ma na ulici tolko nezastavuju vselijaki hobovia, ze chcu drobak, lebo sa na mna pozru a myslia si ze som tiez bezdomovec :D
    TADEAS
    TADEAS --- ---
    LINKOS
    LINKOS --- ---
    GLOBETROTTER: třeba to dotáhne do nějaké naháčské hippie komunity. Myslím, že tam pak bude jezdit bulvár co týden.
    GLOBETROTTER
    GLOBETROTTER --- ---
    LINKOS: No teď už nikde, když si bude pokrytecky půjčovat oblečení od přátel. Bál jsem se, že v novinách budou její pokrokové nahé fotky.
    LINKOS
    LINKOS --- ---
    Zcela výjimečně do více diskuzí
    Podané ruce mezi zemědělstvím a solární energetikou: agrivoltaika | Obnovitelně
    https://www.obnovitelne.cz/...1445/podane-ruce-mezi-zemedelstvim-a-solarni-energetikou-agrivoltaika/
    LINKOS
    LINKOS --- ---
    GLOBETROTTER: kde je problém?
    GLOBETROTTER
    GLOBETROTTER --- ---
    Napřed jsem se lekl, ale ona to pokrytecky vyřešila:
    „Mám spoustu přátel, kteří mají oblečení hodně. Myslím, že mi nějaké půjčí, nebo mi věnují to vyřazené,“ prohlásila oslavenkyně
    Už nikdy si nekoupí oblečení, nepoletí letadlem. Greta ušla dlouhou cestu, od neděle je plnoletá | Svět | Lidovky.cz
    https://www.lidovky.cz/...istka-oslavila-osmnactiny-nikdy-si-nekoup.A210105_135220_ln_zahranici_livs
    Kliknutím sem můžete změnit nastavení reklam