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    TUHOKlimaticka zmena / Thank you so much for ruining my day
    PER2
    PER2 --- ---
    TADEAS:

    Arctic Methane. Has 2020 triggered a tipping point?
    http://www.youtube.com/watch?v=A1ChxLmpbz4
    TUHO
    TUHO --- ---
    TADEAS: Mozna se nam nepodari teraformovat Mars, ale aspon bysme mohli zvladnout marsifikovat Zemi
    TADEAS
    TADEAS --- ---
    FB-IMG-1615248939175
    SHEFIK
    SHEFIK --- ---
    China’s Carbon Neutral Opportunity: Economic Growth Driven By Ambitious Climate Action
    https://www.forbes.com/...tunity-economic-growth-driven-by-ambitious-climate-action/?sh=2bac2bd8734d
    SEJDA
    SEJDA --- ---
    PER2: chtel jsem naznacit druhy problem: nedostatek pitne vody. Pozary jsou katastrofa, ale po pozaru se lidi vrati, protoze "kdyz to shorelo uz to znova neshori", a odstehuji se az kdyz jim polezou krkem prasne boure, a ze ty budou silit, s tim jak sili i pozary je jasne. Zato nedostatek pitne vody/jeji kontaminace vede k migraci mnohem rychleji.
    PER2
    PER2 --- ---
    SEJDA: popravde nechapu, co tim chces rict, problem cape town vidim krom sucha i v tomhle (v kalifornii je to podobny se skodama z pozaru, je tam vsude vic infrastruktury nez pred sto lety = vetsi skody a zaroven se tam kumuluje za ty desetileti hmota, ktera skvele hori) .. pridej k tomu sucho a mas perfektni bouri
    SEJDA
    SEJDA --- ---
    PER2: no i Kapske mesto, malem kvuli suchu zkolabovalo. Ale diky vsem bohum, byl kolaps odvracen a dneska uz maji zase 80 - 100 % zasob pitne vody. V nejhorsi moment, meli zasob pod 20 %, kdy uz diskutovali, jestli se ta voda jeste vubec da pit, resp. jestli by se mela pouzivat v nemocnicich.
    PER2
    PER2 --- ---
    JINDRICH:
    California has experienced longer stretches of drought in the earlier history, lasting almost 200 years. This is known has the “megadroughts”. Through the study of tree rings, scientists have found that California had endured multiple droughts that lasted 10 or 20 years during the past 1000 years. The two most severe megadroughts occur in 850 which lasted 240 years and 50 years after that one, another stretched at least 180 years. Droughts in California in the 20th century occurred from 1987 to 1992 and from 1928 to 1934. However, these are considered minor to the megadroughts.
    JINDRICH
    JINDRICH --- ---
    u nas je na štěstí po delsi dobe celkem vlhko... propadlo se to ale jinde..

    Last year at this time, 2% of the United States was in severe drought.
    Now, it's 31%.
    Snowpack in the California mountains is half of normal.
    This is shaping up to be another disastrous fire season for nearly the entire West
    TADEAS
    TADEAS --- ---
    The new report to the Club of Rome, "The Empty Sea" has been published by Springer. Written by Ugo Bardi and Ilaria Perissi both at the University of Florence, Italy, the book is a review of the situation of Earth's oceans. Can we still increase the production of food from the seas? How about the role of aquaculture? And is there hope of obtaining energy, minerals, and other resources from the sea, as the new concept of "Blue Economy" tells us? Or perhaps it already too late to save the Oceans from a collapse caused by the combined effect of overexploitation, pollution, and global warming? It is a complex story that the book tells starting from the beginning: when our remote ancestors started to explore the sea and its resources.

    New Report to the Club of Rome: The Empty Sea - Club of Rome
    https://www.clubofrome.org/featured-news/new-report-to-the-club-of-rome-the-empty-sea/

    The Empty Sea - The Future of the Blue Economy | Ilaria Perissi | Springer
    https://www.springer.com/gp/book/9783030518974
    XCHAOS
    XCHAOS --- ---
    TADEAS: no mě přijde snesitelný rozšíření modelu chmelnice/vinice. Prostě nějaká míra podpůrný infrastruktury v krajině, ale dá se na to pořád koukat - nemáš na poli hangáry.
    TADEAS
    TADEAS --- ---
    XCHAOS: no je to kontinuita mezi temahle systemama, na jedny strane otevrenej ekosystem s rocnima obdobima, na druhy strane komplet izolovana indoor produkce. ledky by musely jet z nejaky baterky, ale asi proc ne. :) v tu chvili bys uz ale asi pres to stejne mel nejaky folie kvuli vetru.
    XCHAOS
    XCHAOS --- ---
    TADEAS: ok, to potom záleží na tom, jestli to směřuješ k úplně řízený umělý, technický produkci, nebo jestli uvažuješ spíš z hlediska nějakého "augmented ecosystem" - v zásadě navazuješ na stavitele zavlažovacích systémů. Jedno je extrémní zahrádkářství, extrémní forma pěstování v květináči - druhý vychází spíš z klasickýho zemědělství, kdy se přeci jen nějak reješ v půdě, která není úplně izolovaná od toho okolního prostředí, a jen trochu zaléváš, přihnojuješ, apod. Mě ten LED přísvit jde docela dohromady s agrivoltaikou - stejně už pak máš na poli nějaký kandelábry s těmi panely a dráty, tak proč k tomu nepřidat i ty červené LEDky..
    TADEAS
    TADEAS --- ---
    XCHAOS: ten prisvit v tech celorocnich systemech muze docela hodne regulovat produkci, tzn. treba nepotrebujes zrovna tolik salatu, snizis prisvit :)

    urcite kapitalove-energeticko-materialova investice potrebna ke zrizeni foliaku s prisvitem, kterej pak nefungujuje napriklad listopad-unor je nizsi nez u uplne celorocni produkce, hlavni co ochlazuje je podle me pohyb vzduchu/vitr, rostliny muzou rust i v relativne velkym chladu. ale kdyz uz mas treba akvaponickej system, potrebujes proste aspon tech 20 stupnu celorocne, aby tam mohly bejt ryby a cely to jelo furt stejne.
    XCHAOS
    XCHAOS --- ---
    TADEAS: ten přísvit je důležitej a málo se o tom ví. podle mě by na podzim fungoval i mimo skleníky, protože na podzim se celkově ochlazuje pomalu, rostliny neodumíraj ani tak chladem, ale nedostatkem světla (teprve až později v zimě zmrznou). Když se použijí LED, tak by snad měla stačit červená barva, která na podzim začíná chybět nejdřív (ale tohle jsem slyšl na levelu jedna paní povídala).

    Celoroční průběžná sklizeň je jedna věc, ale i obyčejné prodloužení sezóny do podzimu by se nejspíš počítalo a možná by té energie stačilo relativně málo....
    TADEAS
    TADEAS --- ---
    SHEFIK: podle me kdyz to chcem brat fakt cirkularne, tak je potreba uvazovat waste to energy&heat to food.

    muj konceptualni plan je brat bioodpad, v bioplynce generovat plyn, ten komprimovat pro mimosezonni sklenikovou produkci, tzn. v zime ho spalovat, generovat tak teplo a elektrinu, teplo cpat do skleniku, elektrinou rozsvecovat led prisvit a pohanet tepelny cerpadlo vyhrivajici skleniky [geotermalni vrt v hloubce odpovidajici svym lagem sezonnimu vykyvu teploty v lokalite], odpadni co2 ze spalovani bioplynu posilat do skleniku pro rostliny nebo pro rasy. ... potencialne C negativni system, kde vyuzivas waste stream a konvertujes na mimosezonni sklenikovou produkci, bez fosilnich paliv. ty bilance k tomu zatim nemam, ale na par diplomek by to stacit mohlo .]
    SHEFIK
    SHEFIK --- ---
    Waste to Energy Market - Empowering Future Innovation in Energy Recovery System | AltEnergyMag
    https://www.altenergymag.com/...-market-empowering-future-innovation-in-energy-recovery-system/34578

    Waste to energy is one of the most effective and robust alternative sources of energy, which helps in the reduction of CO2 emissions and thus replace fossil fuels. Using waste as a combustion substance is expected to reduce landfill volumes by more than 90%. For every ton of waste burned, one ton of CO2 emission is reduced, which further helps in eliminating methane, which could be leaked with landfill disposal.
    TADEAS
    TADEAS --- ---
    SHEFIK: bioplynka s ccs
    SHEFIK
    SHEFIK --- ---
    #CCS

    Carbon-negative bioenergy project underway with Chevron, Microsoft and Schlumberger - Renewable Energy World
    https://www.renewableenergyworld.com/...gy-project-underway-with-chevron-microsoft-and-schlumberger/

    The plant will convert agricultural waste biomass, such as almond trees, into a renewable synthesis gas that will be mixed with oxygen in a combustor to generate electricity. More than 99% of the carbon from the process is expected to be captured for permanent storage by injecting carbon dioxide (CO2) underground into nearby deep geologic formations.

    By using biomass fuel that consumes CO2 over its lifetime to produce power and then storing the produced CO2, the process is designed to result in net-negative carbon emissions, because it removes greenhouse gas from the atmosphere. The plant, when completed, is expected to remove about 300,000 tons of CO2 annually.

    The facility will help improve air quality in the Central Valley by using approximately 200,000 tons of agricultural waste annually, in line with the recent California Air Resources Control Board plan to begin phasing out almost all agricultural burning in the Valley by 2025, said the companies in a press release. The bioenergy technology they will use is designed to operate without routine emissions of nitrous oxide, carbon monoxide and particulates from combustion produced by conventional biomass plants, they said.
    PER2
    PER2 --- ---
    TADEAS:
    jeste tim jak se zpomaluje golfskej proud, tak se kumuluje vic teplejsi vody na pobrezi ameriky a:
    https://www.southampton.ac.uk/news/2021/02/hurricane-intensity-ocean-temperature.page

    New research shows that hurricane maximum wind speeds in the subtropical Atlantic around Bermuda have more than doubled on average over the last 60 years due to rising ocean temperatures in the region.
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