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    TUHOKlimaticka zmena / Thank you so much for ruining my day
    TADEAS
    TADEAS --- ---
    TADEAS: ad "Those who believe that the world will function the same on lower energy density sources like wind and solar should review their old physics text books. You cannot fit 4.5 years of work from sunlight or wind into the 5.6 cubic feet space of a barrel of oil."

    tohle je prave docela otazka, viz filtr "seasonal storage" - vodik, hlinik (Energy that is stored chemically in Al may reach 23.5 MWh/m3.), srv. benzin pokud pocitam spravne je 2,7 mwh/m3
    SHINIGAMI
    SHINIGAMI --- ---
    Koukam ze se s tim zli jadernici snazi i neco delat - https://www.nase-voda.cz/elektrarna-dukovany-planuje-ze-snizi-spotrebu-chladici-vody/
    Btw. stavajici spotreba uz je vysledek ruznych uspornych aktivit, zjevne jim to nebylo ukradeny ani v minulosti.
    TADEAS
    TADEAS --- ---
    GAME OVER FOR OIL, THE ECONOMY IS NEXT
    Game Over for Oil, The Economy is Next - Art Berman
    https://www.artberman.com/2020/04/27/game-over-for-oil-the-economy-is-next/

    Most people, policy makers and economists are energy blind and cannot, therefore, fully grasp the gravity or the consequences of what is happening.

    Energy is the economy and oil is the most important and productive portion of energy. U.S. oil consumption is at its lowest level since 1971 when production was only about 78% of what it was in 2019. As goes oil, so goes the economy…down.

    The old oil industry and the old economy are gone. The energy mix that underlies the economy will be different now. Oil production and price are unlikely to regain late 2018 levels. Renewable sources will fall behind along with efforts to mitigate climate change.

    ...

    U.S. consumption has fallen about 30% from 20 mmb/d in January to 14 mmb/d in April. Refinery intakes are already 25% lower than in the first quarter of the year and will fall further as consumption decreases. Refineries will close.

    Most U.S. refineries require intermediate and heavy crude oil that must be imported. Few U.S. grades of oil can be used to produce diesel without blending them with imported oil. That is because they are too light to contain the organic compounds need to make diesel. Redesigning refineries will not change this.

    The world’s natural resource extraction, shipping and distribution system relies on diesel. As refineries close and less diesel is produced, there will be lower levels of natural resource extraction, less manufacturing and less buying of goods.

    Diesel cannot be produced without first producing gasoline. The U.S. has had a gasoline surplus since late 2014 and the current surplus is the highest in 5 years

    Diesel demand is less elastic than gasoline demand because of its critical role in heavy transport. What will happen to the excess produced gasoline if storage is full? Will it be burned?

    Those who see an opportunity for renewable energy in the demise of oil need to think again. The manufacture of solar panels, wind turbines and electric cars depend on diesel all along the supply chain from extraction to distribution of finished products. A world in economic depression will default to the cheapest and most productive fuels. Oil will be cheap and abundant for a long time. There will be little money or appetite for the massive equipment changes that renewable sources require. Climate change will not be high in the consciousness of people struggling to survive.

    ...

    Those who believe that the world will function the same on lower energy density sources like wind and solar should review their old physics text books. You cannot fit 4.5 years of work from sunlight or wind into the 5.6 cubic feet space of a barrel of oil.

    Seventeen investment analysts recently estimated that U.S. GDP would contract an average of 30-35% in 2020 (Figure 5) within a range of 9-50%. The correlation shown in Figure 4 suggests it will decrease by about 20-25% based on estimated decrease in U.S. oil consumption. Any value within this spectrum is catastrophic.

    ...

    Economist Lawrence Summers has warned that the U.S. financial system may collapse because of cascading defaults. Approximately 25% of U.S. renters did not pay their landlords and 23% of Americans did not make their mortgage payment in April. When people don’t pay their creditors, creditors in turn cannot pay their creditors. For comparison, a 28% mortgage default rate contributed to the 2008 financial collapse.

    Joseph Stiglitz recently explained that the current pandemic will affect the developing world more severely than it has developed countries. It might lead to mass migration problems that could dwarf the dislocations of the last six years out of Africa and the Middle East.

    ...

    Large segments of the U.S. oil industry will have to be nationalized before the year is over. The price of oil is too low to justify the cost of extraction even if storage were available. The value of a barrel of oil, however, is 4.5 man-years of work and that productivity multiplier will be essential if the U.S. economy is to avoid collapse or for it to recover if collapse is unavoidable.

    The United States has engaged in the foolish practice of draining America first since the beginning of tight oil production a decade ago. There was value up to the point that domestic oil substituted for imported light oil but exporting more was dumb. That is true especially now that someone else’s oil will be cheap to buy for years.

    There are few moments when we may truly say that things are different now. This is one of those moments. We do not know what awful form the future may take, what rough beast slouches toward Bethlehem to be born.

    The game is over for oil. We should place all of our attention on saving the economy.

    I hope that we learn to view what is happening as a chance to simplify and to learn to be satisfied with no more than what we need. It is unlikely that we will have much choice.


    TADEAS
    TADEAS --- ---
    SHINIGAMI: mam za to, ze muze vyprset v jiny oblasti nez byl zdroj vody, tim padem efekt je odber. misto ironie pomuze k tomu dodat nejaky zdroje, jsme v informacnim prostoru.
    SHINIGAMI
    SHINIGAMI --- ---
    TADEAS: to je takova specialita jadernych elektraren. Bezne odparena voda vyprsi v podobe deste, ale ta z chladicich vezi nenavratne mizi.
    TADEAS
    TADEAS --- ---
    Magdalena Davis - Názory Aktuálně.cz
    http://blog.aktualne.cz/blogy/magdalena-davis.php?itemid=36761

    JE Dukovany v současnosti spotřebují k chlazení přibližně dva kubíky vody za sekundu, z toho více než polovina se za onu sekundu odpaří. Pokud preferujete roční bilanci, pak věřte, že Dukovany spotřebuje každým rokem minimálně 55 miliónů kubíků vody, ze kterých se pouhých 40 % (22 milionů kubíků) vrací zpět do krajiny a tato voda je navíc ohřátá. Zhruba 33 milionů kubíků vody tak ročně z vyprahlého Třebíčska mizí.

    Pokud zrovna není dlouhodobé sucho, mohou Dukovany po nějakou dobu odebírat chladicí vodu z přehrady Dalešice, která zároveň umožňuje zajistit minimální možné průtoky v řece Jihlavě. V případě nového reaktoru už to bude ale mnohem obtížnější. Pokud současně s výstavbou nového bloku nedojde k vypnutí bloků starších, spotřeba vody na chlazení totiž výrazně naroste.

    Nastala by tak nevyhnutelná situace, kdy by bylo nutné nastřádanou vodu pro pitné účely použít jako chladicí.
    TUHO
    TUHO --- ---
    A molecular tweak could enable wheat—and other crops—to thrive in higher temperatures | Anthropocene
    https://anthropocenemagazine.org/2020/05/a-new-way-to-make-heat-tolerant-wheat/
    BROZKEFF
    BROZKEFF --- ---
    TADEAS: richarda jsem potkal osobne pred par lety v belgii v plukrijpu kde nam daval workshop a natacel tam dokument, fajn typek :)
    PER2
    PER2 --- ---
    Nemá co tát. V Krkonoších bijí na poplach. Už teď vysychají potoky - Seznam Zprávy
    https://www.seznamzpravy.cz/...ma-co-tat-v-krkonosich-biji-na-poplach-uz-ted-vysychaji-potoky-104476
    TUHO
    TUHO --- ---
    Carbon Brief
    Great Britain has been running for more than a month – and counting – without burning coal to generate electricity.
    With demand down nearly 20% due to #coronavirus, supply has been met by:
    36% renewables
    32% gas
    22% nuclear
    9% imports

    Analysis: Great Britain hits coal-free electricity record amid coronavirus lockdown
    https://www.carbonbrief.org/...t-britain-hits-coal-free-electricity-record-amid-coronavirus-lockdown
    TADEAS
    TADEAS --- ---
    WHY THE RENEWABLE ROCKET HAS FAILED TO LAUNCH
    Why the Renewable Rocket Has Failed to Launch - Art Berman
    https://www.artberman.com/2020/05/08/why-the-renewable-rocket-has-failed-to-launch/

    Humans will self-organize around energy as we have always done. It is impossible for humans to choose an energy source that violates the genetic imperative to expand as a species. When that happens, it will be imposed by circumstances that make survival a greater imperative than growth.

    Coronavirus is a substantial step in that direction but is only a prelude. The economy is unlikely to fully recover from the economic damage done already. If premature opening of the economy results in another period of quarantine, the damage will be greater.

    The effects of this virus will be recognized in time as a fundamental and painful shift in the course of human history. The result of the transition to a 100% renewable energy future will, by comparison, be traumatic

    SHEFIK
    SHEFIK --- ---
    chjo, skoda ze jen v us

    Tesla starts solar price matching, reducing the cost of solar - here's how to benefit - Electrek
    https://electrek.co/2020/05/09/tesla-solar-price-matching/amp/

    Last year, Tesla launched a new solar subscription under which homeowners can get a solar panel system installed at their home for no cost and no contract.
    They only pay a monthly fee to access the solar power generated by the system to reduce their utility bill.
    SHEFIK
    SHEFIK --- ---
    New Solution For Cooling Solar Panels | CleanTechnica
    https://cleantechnica.com/...servations-research-for-cooling-solar-panels-tested-in-summer-in-cairo/

    The technology enables an annual increase in power generation of between 8% and 12%.
    TADEAS
    TADEAS --- ---
    Geopower: On the states of nature of late capitalism - Luisetti 2019
    (PDF) Geopower. On the States of Nature of Late Capitalism | Federico Luisetti - Academia.edu
    https://www.academia.edu/35824254/Geopower._On_the_States_of_Nature_of_Late_Capitalism

    the article argues that environmental planetary discourses have coalesced into theAnthropocene crisis narrative and reformulated the state of nature apparatus of Western political theory. The Anthropocene, as an ecological state of nature of latecapitalism, casts light on the logics of geopower, which assembles species thinking, afascination with nonlife and sovereignty, and the imaginary of extinction and mutation.Geopower shifts governmental technologies from human populations and their ‘milieu’to nonhuman species, energy flows and ecosystems, from political economy and bio-power to Earth science and systems ecology. This configuration of power suggests a shiftin the neoliberal agenda and imposes the Earth as a political personage, generatingthreatening political myths and figures of chaos and sovereignty, such as Gaia, Chthuluand Climate Leviathans
    TUHO
    TUHO --- ---
    Rice paddies provide a source of staple food for millions worldwide. But this comes at a huge cost to the environment: rice farming contributes 11% of anthropogenic methane to the atmosphere, a gas several times more potent than carbon dioxide.
    However, a group of scientists think that a recently-discovered bacteria might hold the solution: they found that inoculating soil with these microbes caused a striking decline in methane of over 90%. That could help make a dent in harmful greenhouse gas emissions, if the results carry through to field trials.

    https://anthropocenemagazine.org/...cting-bacteria-into-rice-paddies-could-reduce-methane-by-over-90
    TUHO
    TUHO --- ---
    The lockdowns have showed “we could actually take immensely drastic measures in a matter of days to counter a threat. So in that sense, when people say we cannot do anything, it’s clearly wrong,” Latour told Reuters in an interview.
    However, he noted that the scale of changes and decisions to be made to stem climate change are “many times more complicated and more drastic than the ones we have (with the coronavirus)”.
    France has been one of countries worst hit by COVID-19, with nearly 26,000 deaths to date. With new infections slowing, the government announced this week that a gradual easing of its nearly two-month lockdown would start from Monday – signalling a slow return to business as usual.
    “We should not miss the chance of doing something else”, said Latour, who has built himself an international reputation with his case studies of scientists, notably French biologist Louis Pasteur, and his philosophical work to show nature and society are not opposites but closely intertwined.
    Latour’s call echoes a study published on Tuesday in which a group of top U.S. and British economists said massive programmes of public investment targeting green issues would be the most cost-effective way to both revive economies and strike a decisive blow against climate change.

    Stop! French philosopher Latour urges no return to pre-lockdown normal - Metro US
    https://www.metro.us/stop-french-philosopher-latour/
    TADEAS
    TADEAS --- ---
    Abrupt Ecosystem Collapse - CounterPunch.org
    https://www.counterpunch.org/2020/04/15/abrupt-ecosystem-collapse/

    new study in Nature (April 2020) casts a disturbing light on the prospects of abrupt ecosystem collapse. The report analyzes the probabilities of collapsing ecosystems en masse, and not simply the loss of individual species

    The paper states that a high percentage of species will be exposed to harmful climate conditions at about the same time, potentially leading to sudden and catastrophic die-offs of biodiversity. If high greenhouse gas emissions remain in place, abrupt events are forecast to begin before 2030 in tropical oceans and spread to tropical forests and temperate regions over time.

    Without doubt, no nation is prepared for the consequences of collapsing ecosystems nor are they doing anything to avert it. Yet, it is all about the quintessence of life on the planet.

    There is a high probability that fossil fuel emissions will not be curtailed enough in enough time to prevent abrupt ecosystem collapse(s). Sufficient mitigation efforts to slowdown carbon emissions are not happening, not even close.



    The projected timing of abrupt ecological disruption from climate change
    https://www.nature.com/articles/s41586-020-2189-9

    As anthropogenic climate change continues the risks to biodiversity will increase over time, with future projections indicating that a potentially catastrophic loss of global biodiversity is on the horizon1,2,3. However, our understanding of when and how abruptly this climate-driven disruption of biodiversity will occur is limited because biodiversity forecasts typically focus on individual snapshots of the future. Here we use annual projections (from 1850 to 2100) of temperature and precipitation across the ranges of more than 30,000 marine and terrestrial species to estimate the timing of their exposure to potentially dangerous climate conditions. We project that future disruption of ecological assemblages as a result of climate change will be abrupt, because within any given ecological assemblage the exposure of most species to climate conditions beyond their realized niche limits occurs almost simultaneously. Under a high-emissions scenario (representative concentration pathway (RCP) 8.5), such abrupt exposure events begin before 2030 in tropical oceans and spread to tropical forests and higher latitudes by 2050. If global warming is kept below 2 °C, less than 2% of assemblages globally are projected to undergo abrupt exposure events of more than 20% of their constituent species; however, the risk accelerates with the magnitude of warming, threatening 15% of assemblages at 4 °C, with similar levels of risk in protected and unprotected areas.
    TADEAS
    TADEAS --- ---
    Study shows wetter climate is likely to intensify global warming
    https://phys.org/news/2020-05-wetter-climate-global.amp

    The current concentration of carbon dioxide in Earth's atmosphere—416 parts per million—equates to about 750 billion tons of carbon. Earth's soils hold around 3,500 billion tons—more than four times as much.

    Previous research has highlighted the threat that global warming poses to the permafrost soils of the Arctic, whose widespread thawing is thought to be releasing up to 0.6 billion tons of carbon to the atmosphere each year.

    "We've now found a similar climate feedback in the tropics," says Hein, "and are concerned that enhanced soil respiration due to greater precipitation—itself a response to climate change—will further increase concentrations of CO2 in our atmosphere."


    Millennial-scale hydroclimate control of tropical soil carbon storage, Nature (2020).
    https://www.nature.com/articles/s41586-020-2233-9
    TADEAS
    TADEAS --- ---
    It’s already getting too hot and humid in some places for humans to survive - The Verge
    https://www.theverge.com/...mp/21252174/heat-humidity-human-survival-climate-change-science-advances

    Extreme heat above what’s thought to be the human tolerance limit of 35°C on the wet bulb scale has now occurred dozens of times along the Persian Gulf.

    Extreme humid heat spells also seen across Asia, Africa, Australia, South America, and North America.


    The emergence of heat and humidity too severe for human tolerance | Science Advances
    https://advances.sciencemag.org/content/6/19/eaaw1838/tab-e-letters
    TADEAS
    TADEAS --- ---
    Škody v lesích v Německu jsou nečekaně vysoké | Silvarium - lesnický, dřevařský a myslivecký zpravodajský web
    http://silvarium.cz/lesnictvi/skody-v-lesich-v-nemecku-jsou-necekane-vysoke

    Extrémně suché roky 2018, 2019 a první jarní týdny roku 2020 jasně a neodvratně potvrdily, že změna klimatu dorazila i do německých lesů," říká Nicole Wellbrocková, koordinátorka šetření stavu spolkového výzkumného ústavu pro lesy Johanna Heinricha von Thünena, institut lesních ekosystémů, v brandenburgském Eberswalde. A dodává: „Les bude vždycky. Les neodumře, ale silně se změní. V příštích 30 až 40 letech budou v lesích převládat jiné dřeviny než ty dnešní." „Právě teď a neodkladně se musíme důkladně připravit pro vytváření lesů budoucnosti," zdůraznil Jürgen Bauhus, profesor katedry pěstování lesů univerzity ve Freiburku
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