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    TUHOKlimaticka zmena / Thank you so much for ruining my day
    SHEFIK
    SHEFIK --- ---
    TUHO: ja myslel to spalovani, kdyz ma byt primarni ucel letecky palivo. jestli maj 100 milionu litru cisty vody rocne navic, tak ok...
    TADEAS
    TADEAS --- ---
    YEETKA:

    I am a preacher’s daughter, and my dad is a climate-denying megachurch pastor. To me, it seems most white evangelicals are lost in a false nostalgia and brainwashed by the cult of Trump and Fox News. They’re driven by an ideological identity and a mentality of my team vs. yours, not science, or even compassion, and stuck in the culture wars of the nineteen-eighties and nineties. I like to remind people that there’s a lot more to Christianity than what white evangelicals have to say. There’s still a lot of hope among young people who were raised in that space, and even those who still identify with it, who are far more likely to embrace science and social justice. And there are millions of progressive Christians who care about the climate crisis and are inspired by Jesus’ teachings and other tenets of Christianity to act. But I fear that many, if not most, older white evangelicals may be lost—not that I won’t still keep trying.

    TADEAS, TADEAS
    TUHO
    TUHO --- ---
    SHEFIK: Tak elektrolyza se ale dela v norsku, tam maji spousty vody nejenom z more, ale z rek. Pokud vim, tak tam jsou spis projekce takovy, ze vody bude nadbytek...
    TADEAS
    TADEAS --- ---
    Europe losing forest to harvesting at alarming rate, data suggests | Environment | The Guardian
    https://www.theguardian.com/.../01/europe-losing-forest-to-harvesting-at-alarming-rate-data-suggests

    Europe has lost a vastly increased area of forest to harvesting in recent years, data suggests, reducing the continent’s carbon absorption capacity and possibly indicating wider problems with the EU’s attempts to combat the climate crisis.

    Many of the EU’s forests – which account for about 38% of its land surface area – are managed for timber production, and thus harvested regularly. But the loss of biomass increased by 69% in the period from 2016 to 2018, compared with the period from 2011 to 2015, according to satellite data. The area of forest harvested increased by 49% in the same comparison, published in the journal Nature Research.

    ...

    “The forests continue to remain a carbon sink, but less than before,” said Ceccherini. “Even if part of the harvested biomass carbon is used in long-lasting wood products, possibly replacing more energy-intensive materials such as steel or cement, most of it will return to the atmosphere as CO2 in a short period of time, [from] months to a few years. Until the carbon stock in harvested areas returns to previous levels, which takes several decades, depending on the type of forest, an increase in harvest is therefore equivalent to an increase in carbon dioxide emissions to the atmosphere.”

    Forests offset about 10% of the EU’s greenhouse gas emissions. As the areas harvested are likely to be replanted, the new growth will continue to absorb carbon dioxide from the atmosphere, so Europe’s carbon balance may not be greatly affected in the long term.

    However, the researchers said it was important to find out why the harvesting has increased so suddenly, in case it indicates wider underlying problems with the way in which Europe’s forests are being managed. This study cannot definitively establish the causes of the increases in harvesting, so more research is needed.

    ...

    The loss of forest biomass is most pronounced in Sweden, which accounted for 29% of the increase in harvesting, and Finland, for about 22%. Much less affected were Poland, Spain, Latvia, Portugal and Estonia, which jointly accounted for about 30% of the increase in the 26 countries studied.

    Ceccherini told the Guardian that the observed increase in harvesting and the loss of biomass was unlikely to result in a decline in the area of the EU that is forested overall, as most of the harvested forests would be regenerated. But it would disrupt the carbon absorption capacity of the EU’s forests in the short term, he said.
    SHEFIK
    SHEFIK --- ---
    LINKOS: na dofiltrovani asi jo. nicmene v clanku: "Do roku 2026 by měl první komerční závod v Evropě vyrábět 100 milionů litrů obnovitelného leteckého paliva ročně" .)
    LINKOS
    LINKOS --- ---
    SHEFIK: tak teoreticky by byla asi nejvhodnější dešťová
    SHEFIK
    SHEFIK --- ---
    TUHO: jenze ne lokalne, tam kde se dela elektrolyza

    a z more je potreba resit filtraci, odsolovani stoji mraky energie... pokud vyresi odsolovani a elektrolyzu vodiku jednou ranou, tak je to win-win. ale spis mam dojem, ze se k tomu bude pouzivat pitna...
    TUHO
    TUHO --- ---
    SHEFIK: tak vody je asi v norsku dost ne? plus spalovanim vodiku vznikne zase voda :)
    KEB
    KEB --- ---
    SHEFIK: předpokládám že z moře. Tam je jí dost a ještě získají mořskou sůl.
    DZODZO
    DZODZO --- ---
    SHEFIK: vezmu zo starych vlhkych barakov pomocou takej tej cisticky vzduchu, ta tu vodu kondenzuje
    SHEFIK
    SHEFIK --- ---
    tohle zni krasne, dokonce i z nasich CEZkych koncin. jen by me jeste zajmalo, odkud se bude brat "obnovitelna" voda pro elektrolyzu

    ČEZ pomůže snižovat emise v letecké dopravě, letecký benzín má nahradit vodík | Hybrid.cz
    http://www.hybrid.cz/cez-pomuze-snizovat-emise-v-letecke-doprave-letecky-benzin-ma-nahradit-vodik
    XCHAOS
    XCHAOS --- ---
    DRSH: no tam je ekologické riziko hlavně když v místním klimatu, které utáhne nejvíc tak step, že stromy vysuší půdu, pak stejně odumřou, ale nevrátí se tam ani ta step a změní se to v poušť. Tohle se prý reálně na pár místech stalo jinak snaživým Číňanům, kteří v oblasti stepí bojují s rozšiřováním pouště Gobi, ale konkrétní lokace teda neznám... umím si to ale představit, uschlých stromů jsem viděl v takových oblastech hodně, samozřejmě se ale poučili a vymýšlejí pro ty pouštní lesy různá zavlažování a tak.

    Ten článek popisuje spíš politická rizika... pokud někdo použije peníze na výsadbu nových stromů tak, že nejdřív pokácí stávající les, tak to je fakt no comment a mělo by se to rozmáznout....
    SHEFIK
    SHEFIK --- ---
    pro zaryty sledovace atmosfery

    Meteomapa Windy získala nové vrstvy. Ukáže požáry a nebezpečné látky ve vzduchu – Živě.cz
    https://www.zive.cz/...-vrstvy-ukaze-pozary-a-nebezpecne-latky-ve-vzduchu/sc-3-a-204762/default.aspx
    DRSH
    DRSH --- ---
    Plošné zalesňování nemusí být vždy prospěšné, varují vědci ze Stanfordovy univerzity | Plus
    https://plus.rozhlas.cz/...zalesnovani-nemusi-byt-vzdy-prospesne-varuji-vedci-ze-stanfordovy-8243073
    KEB
    KEB --- ---
    David Hanslian a Pavel Sedlák: Větrné elektrárny - klimatické pohroma? - Ekolist.cz
    https://ekolist.cz/cz/publicistika/nazory-a-komentare/vetrne-elektrarny-klimaticka-pohroma
    TADEAS
    TADEAS --- ---
    TUHO: "read fast, die old" :D
    TUHO
    TUHO --- ---
    TADEAS: Doufam, ze v duchodu budu mit cas v podzemnim bunkru prelouskat vsechny ty prispveky, ktery jsem ti tady olajkoval :D
    TADEAS
    TADEAS --- ---
    Where there’s muck, there’s brass | Rothamsted Research
    https://www.rothamsted.ac.uk/news/where-there%E2%80%99s-muck-there%E2%80%99s-brass

    Soil as an extended composite phenotype of the microbial metagenome
    https://www.nature.com/articles/s41598-020-67631-0

    “Despite carbon’s critical role, the mechanisms underlying carbon dynamics and the link to soil water were poorly understood,” said Neal. “Society struggles with the concept of what soil is and how it can be managed effectively because it is such a complex combination of biological, chemical and physical processes.

    “We took inspiration from a theory proposed by Richard Dawkins in the 1980s that many structures we encounter are in fact products of organisms’ genes – Dawkins used the examples of bird nests and beaver dams. This view helped us understand soil as a product of microbial genes, incorporating organic materials from plants and other inputs to create all-important structure.

    “We have shown for the first time a dynamic interaction between soil structure and microbial activity - fuelled by carbon - which regulates water storage and gaseous flow rates in soil with real consequences for how microbes respire.”

    ...

    In healthy soils, relatively low nitrogen levels limit microbes’ ability to utilise carbon compounds, so they excrete them as polymers which act as a kind of ‘glue’ - creating a porous, interconnected structure in the soil which allows water, air, and nutrients to circulate.

    Writing in the journal Scientific Reports, the researchers reveal that the Victorian-era switch from manure to ammonia and phosphorous based fertilizers has caused microbes to metabolise more carbon, excrete less polymers and fundamentally alter the properties of farmland soils when compared to their original grassland state.

    Lead researcher Professor Andrew Neal said: “We noticed that as carbon is lost from soil, the pores within it become smaller and less connected. This results in fundamental changes in the flow of water, nutrients and oxygen through soil and forces several significant changes to microbial behaviour and metabolism. Low carbon, poorly connected soils are much less efficient at supporting growth and recycling nutrients.”

    A lack of oxygen in soil results in microbes having to turn to nitrogen and sulphur compounds for their energy – inefficient processes, he says, which result in increased emissions of the greenhouse gas nitrous oxide among other issues.

    The closed soil structure also means microbes need to expend more energy on activities such as searching out and degrading less easily accessible organic matter for nutrients.

    Conversely, in carbon-rich soil there is an extensive network of pores which allow for greater circulation of air, nutrients and retention of water.

    “Manure is high in carbon and nitrogen, whereas ammonia-based fertilisers are devoid of carbon. Decades of such inputs - and soil processes typically act over decades - have changed the way soil microbes get their energy and nutrients, and how they respire.”

    ...

    long term addition of nitrogen and phosphorous fertilizers has caused microbes to burn more of these carbon compounds for energy, an activity that has increased emissions of CO2.

    Ploughing has also increased the availability of this soil carbon to microbes, further decreasing its levels in the soil.

    As carbon stocks decline, less EPS is produced, and the soil loses the beneficial porous structure
    TUHO
    TUHO --- ---
    No a tady zajimavej clanek: kdy bude severni pol v lete bez ledu?

    Since satellites first began monitoring the Arctic in 1979, the average area covered by sea ice has shrunk by at least 40%. The average thickness of the ice has fallen by more than half over the same time period.
    These rapid changes have left climate scientists facing an urgent question: when will Arctic sea ice disappear?

    When will the Arctic see its first ice-free summer?
    https://interactive.carbonbrief.org/when-will-the-arctic-see-its-first-ice-free-summer/

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