{"id":7319,"date":"2021-05-16T23:34:00","date_gmt":"2021-05-16T20:34:00","guid":{"rendered":"https:\/\/alfacash.blog\/?p=7319"},"modified":"2024-02-19T21:51:46","modified_gmt":"2024-02-19T18:51:46","slug":"faq-kryptomeny-znecistenie-zmena-klimy","status":"publish","type":"post","link":"https:\/\/alfacash.blog\/sk\/2021\/05\/16\/faq-kryptomeny-znecistenie-zmena-klimy\/","title":{"rendered":"FAQ: Kryptomeny, zne\u010distenie a zmena podnebia"},"content":{"rendered":"<p>Ur\u010dite ste to u\u017e po\u010duli: kryptomeny nie s\u00fa ve\u013emi ekologick\u00e9. Maj\u00fa zl\u00fd vplyv na \u017eivotn\u00e9 prostredie, zvy\u0161uj\u00fa klimatick\u00e9 zmeny, s\u00fa \u201eenvironment\u00e1lnou katastrofou\u201c [Agustin Carstens] at\u010f. Je to v\u0161etko pravda? Kryptomeny sp\u00f4sobuj\u00fa zne\u010distenie a prispievaj\u00fa k zmene kl\u00edmy?<\/p>\n\n\n\n<p>Ned\u00e1vno <a href=\"https:\/\/alfacash.blog\/2021\/05\/13\/tesla-rejects-bitcoin-environmental-concerns-its-right\/\" target=\"_blank\" rel=\"noreferrer noopener\">Tesla zastavil<\/a> prij\u00edmanie platieb Bitcoin (BTC) <strong>za to, \u017ee to pova\u017euj\u00fa za \u201eve\u013ek\u00e9 n\u00e1klady pre \u017eivotn\u00e9 prostredie\u201c.<\/strong> Ako je to mo\u017en\u00e9? S\u00fa digit\u00e1lne, v\u0161ak? Nie s\u00fa to pr\u00e1ve p\u013euvaj\u00face \u010dierny dym na \u010dist\u00e9 nebo. Teraz je na\u010dase vyrie\u0161i\u0165 v\u0161etky svoje pochybnosti o tomto. &nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Kryptomeny = zne\u010distenie? Pre\u010do?<\/strong><\/h2>\n\n\n\n<p>Na za\u010diatku nie ka\u017ed\u00e1 kryptomena m\u00f4\u017ee produkova\u0165 zne\u010distenie. Skuto\u010dn\u00fd probl\u00e9m poch\u00e1dza z <a href=\"https:\/\/alfacash.blog\/2020\/08\/25\/cryptocurrency-mining-dummies-how-works\/\" target=\"_blank\" rel=\"noreferrer noopener\">D\u00f4kaz o pr\u00e1ci (PoW)<\/a>. Toto je algoritmus a \u201ealgoritmom\u201c rozumieme s\u00fabor krokov a met\u00f3d, ktor\u00e9 s\u00fa zostaven\u00e9 (s matematikou) na dosiahnutie konkr\u00e9tneho v\u00fdsledku alebo vyrie\u0161enie probl\u00e9mu. To je presne to, \u010do PoW rob\u00ed: v\u00fdvoj \u0165a\u017ek\u00e9ho matematick\u00e9ho probl\u00e9mu alebo h\u00e1danky, ktor\u00fa musia ban\u00edci vyrie\u0161i\u0165, aby overili virtu\u00e1lne transakcie a \u201evy\u0165a\u017eili\u201c nejak\u00e9 mince.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"682\" src=\"https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/hands-4348717_1280-1024x682.jpg\" alt=\"bitcoin-coiny-hrs\u0165-pe\u0148a\u017eenka\" class=\"wp-image-5779\" srcset=\"https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/hands-4348717_1280-1024x682.jpg 1024w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/hands-4348717_1280-300x200.jpg 300w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/hands-4348717_1280-150x100.jpg 150w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/hands-4348717_1280-18x12.jpg 18w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/hands-4348717_1280-270x180.jpg 270w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/hands-4348717_1280-770x513.jpg 770w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/hands-4348717_1280-762x508.jpg 762w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/hands-4348717_1280-773x515.jpg 773w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/hands-4348717_1280-370x247.jpg 370w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/hands-4348717_1280-554x369.jpg 554w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/hands-4348717_1280-306x204.jpg 306w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/hands-4348717_1280-368x245.jpg 368w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/hands-4348717_1280-260x173.jpg 260w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/hands-4348717_1280-87x58.jpg 87w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/hands-4348717_1280.jpg 1280w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n\n<p>Ban\u00edci s\u00fa\u0165a\u017eia s ostatn\u00fdmi o \u201en\u00e1jdenie\u201c minc\u00ed ako prv\u00fdch a ich celkov\u00fd v\u00fdpo\u010dtov\u00fd v\u00fdkon pom\u00e1ha zabezpe\u010di\u0165 sie\u0165. Napriek tomu to neznie ve\u013emi kontaminuj\u00faco, nie? Probl\u00e9m je v tej h\u00e1danke. Nikto to skuto\u010dne nem\u00f4\u017ee vyrie\u0161i\u0165 r\u00fdchlos\u0165ou potrebnou na s\u00fa\u0165a\u017eenie. Iba po\u010d\u00edta\u010de a niektor\u00e9 \u0161pecializovan\u00e9 zariadenia (<a href=\"https:\/\/alfacash.blog\/2020\/11\/21\/easy-crypto-miners-how-mine-cryptocurrencies-problems\/\" target=\"_blank\" rel=\"noreferrer noopener\">ASIC ban\u00edci<\/a>) mo\u017eem to spravi\u0165. A nie sami: vy\u017eaduj\u00fa ve\u013ea elektrickej energie, aby sa pok\u00fa\u0161ali znova a znova, k\u00fdm nenarazia na rie\u0161enie. Preto \u201epr\u00e1ca\u201c v d\u00f4kaze.<\/p>\n\n\n\n<p><strong>Ak ste teda nevedeli, ve\u013ea elektriny sa zvy\u010dajne rovn\u00e1 v\u00e4\u010d\u0161iemu zne\u010disteniu, <\/strong>pod\u013ea toho, odkia\u013e t\u00e1 energia poch\u00e1dza. Uhlie a in\u00e9 fos\u00edlne paliv\u00e1 s\u00fa celosvetovo be\u017en\u00fdm zdrojom elektrickej energie. Ak teda energia na \u0165a\u017ebu kryptomien poch\u00e1dza z uhlia, znamenalo by to viac \u0161kodliv\u00fdch emisi\u00ed pre plan\u00e9tu. &nbsp;<\/p>\n\n\n\n<p>Na druhej strane m\u00e1me stroje ASIC. Boli navrhnut\u00e9 \u0161peci\u00e1lne na \u0165a\u017ebu kryptomien a ni\u010doho in\u00e9ho. Nevydr\u017eia v\u0161ak ve\u013ea \u010dasu, preto\u017ee n\u00e1ro\u010dnos\u0165 \u0165a\u017eby kryptomien v\u017edy rastie s po\u010dtom ban\u00edkov, ktor\u00ed sa do siete zapoja (z bezpe\u010dnostn\u00fdch d\u00f4vodov). Hne\u010f ako sa skon\u010d\u00ed u\u017eito\u010dn\u00e9 obdobie (asi 1,5 roka), m\u00f4\u017eu <a href=\"https:\/\/digiconomist.net\/bitcoin-electronic-waste-monitor\/\" target=\"_blank\" rel=\"noreferrer noopener\">sta\u0165 sa elektronick\u00fdm odpadom<\/a> a v z\u00e1sade pridanie \u010fal\u0161\u00edch odpadkov kryptomien na hromadu zne\u010distenia.<\/p>\n\n\n\n<p>To sa samozrejme st\u00e1va iba pri kryptomen\u00e1ch PoW. Ostatn\u00e9 syst\u00e9my, ako napr\u00edklad Proof-of-Stake (PoS), tento probl\u00e9m s \u0165a\u017ebou nemaj\u00fa.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Ak\u00e9 kryptomeny sp\u00f4sobuj\u00fa zne\u010distenie a ktor\u00e9 nie?<\/strong><\/h2>\n\n\n\n<p>To je komplikovan\u00e1 odpove\u010f. Aj v pr\u00edpade kryptomien PoW <strong>v\u0161etko z\u00e1vis\u00ed od zdroja energie a alternat\u00edvneho pou\u017eitia pre ASIC.<\/strong> V\u00e4\u010d\u0161ina ban\u00edkov si vyber\u00e1 miesta, kde je dominantn\u00fd zdroj energie obnovite\u013en\u00fd, a niektor\u00ed z nich u\u017e pou\u017e\u00edvaj\u00fa svoje ASIC na \u010fal\u0161ie funkcie, ako napr. <a href=\"https:\/\/twitter.com\/Jonbros01\/status\/1064224854164074497?ref_src=twsrc%5Etfw\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">k\u00farenie<\/a> alebo pestovanie paradajok (<a href=\"https:\/\/twitter.com\/KamilBrejcha\/status\/972438246528569344\" target=\"_blank\" rel=\"noreferrer noopener\">naozaj<\/a>).<\/p>\n\n\n\n<figure class=\"wp-block-embed aligncenter is-type-rich is-provider-twitter wp-block-embed-twitter\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"twitter-tweet\" data-width=\"550\" data-dnt=\"true\"><p lang=\"en\" dir=\"ltr\">Kto by si predstavoval, \u017ee \u0165a\u017eba kryptomien a po\u013enohospod\u00e1rstva m\u00f4\u017eu spolupracova\u0165? Prv\u00e1 d\u00e1vka kryptomien je pripraven\u00e1 na zber. Prebyto\u010dn\u00e9 teplo vyu\u017e\u00edvame na paradajkov\u00fd sklen\u00edk a funguje to :-) <a href=\"https:\/\/t.co\/U7qqKTshqO\">pic.twitter.com\/U7qqKTshqO<\/a><\/p>- Kamil Brejcha (@KamilBrejcha) <a href=\"https:\/\/twitter.com\/KamilBrejcha\/status\/972438246528569344?ref_src=twsrc%5Etfw\">10.03.2018<\/a><\/blockquote><script async src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script>\n<\/div><\/figure>\n\n\n\n<p>M\u00f4\u017eeme tie\u017e zv\u00e1\u017ei\u0165, \u017ee existuj\u00fa \u201e\u013eah\u0161ie\u201c verzie PoW. Na pr\u00e1cu nepotrebuj\u00fa ASIC, iba po\u010d\u00edta\u010de a spotreba energie je mierna. To je pr\u00edpad <a href=\"https:\/\/alfacash.blog\/2021\/03\/29\/discover-monero-how-use-it-full-privacy\/\" target=\"_blank\" rel=\"noreferrer noopener\">Monero (XMR)<\/a>, napr\u00edklad. Na rozdiel od toho je Bitcoin st\u00e1le naj\u0165a\u017e\u0161ou mincou a vy\u017eaduje ve\u013ea energie a ASIC. Preto si jeho ban\u00edci zvy\u010dajne vyberaj\u00fa lacnej\u0161ie obnovite\u013en\u00e9 zdroje.<\/p>\n\n\n\n<p>Pod\u013ea <a href=\"https:\/\/cryptoslate.com\/coins\/\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">CryptoSlate<\/a>, existuje viac ako 406 minc\u00ed PoW. Zah\u0155\u0148a nieko\u013eko najob\u013e\u00fabenej\u0161\u00edch: Bitcoin, <a href=\"https:\/\/alfacash.blog\/2020\/11\/04\/what-litecoin-ultimate-history-silver-cryptocurrencies\/\" target=\"_blank\" rel=\"noreferrer noopener\">Litecoin (LTC),<\/a> Hotovos\u0165 Bitcoin (BCH), Ethereum (ETH), <a href=\"https:\/\/alfacash.blog\/2020\/09\/18\/little-story-dogecoin-shiba-inus-cryptocurrency\/\" target=\"_blank\" rel=\"noreferrer noopener\">Dogecoin (DOGE),<\/a> Zcash (ZEC) a Monero (XMR).<strong> Na druhej strane je viac ako 546 minc\u00ed podobn\u00fdch PoS,<\/strong> po\u010d\u00edtaj\u00fac do toho <a href=\"https:\/\/alfacash.blog\/2021\/02\/27\/bitcoin-goes-down-cardano-reaches-new-heights\/\" target=\"_blank\" rel=\"noreferrer noopener\">Cardano (ADA)<\/a>, Polkadot (DOT), Stellar (XLM), Cosmos (ATOM), Tron (TRX), Tezos (XTZ), Lisk (LSK), DASH, XRP a EOS.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Ko\u013eko energie spotreb\u00favaj\u00fa kryptomeny PoW?<\/strong><\/h2>\n\n\n\n<p>Nem\u00f4\u017eeme to vedie\u0165 s istotou, ale m\u00e1me nieko\u013eko preh\u013eadov pre Bitcoin. Pod\u013ea spotreby elektrickej energie Cambridge Bitcoin (<a href=\"https:\/\/cbeci.org\/\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">CBEI<\/a>), Bitcoin spotrebuje pribli\u017ene 148 TWh ro\u010dne, \u010do je viac ako vo \u0160v\u00e9dsku, na Ukrajine alebo v Holandsku. Pokia\u013e ide o jeho \u010das\u0165, <a href=\"https:\/\/digiconomist.net\/bitcoin-energy-consumption\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">Digikon\u00f3m<\/a> vypo\u010d\u00edtava \u010d\u00edslo okolo 117 TWh ro\u010dne.<\/p>\n\n\n\n<p>S\u00fa\u010dasne, ako to popisuje CBEI, <strong>Bitcoin predstavuje iba 0,69% z celkovej spotreby energie na celom svete.<\/strong> Okrem toho \u201emno\u017estvo elektrickej energie spotrebovanej ka\u017ed\u00fd rok v\u017edy zapnut\u00fdmi, ale neakt\u00edvnymi dom\u00e1cimi zariadeniami iba v USA by mohlo nap\u00e1ja\u0165 sie\u0165 Bitcoin 1,5 roka\u201c. V porovnan\u00ed s in\u00fdmi \u201eformami pe\u0148az\u00ed\u201c to m\u00f4\u017eeme tie\u017e poveda\u0165 <a href=\"https:\/\/cryptowords.github.io\/bitcoin-and-energy-consumption-rebuttal\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">bankov\u00fd priemysel<\/a> spotrebuje viac ako 639 TWh ro\u010dne a \u0165a\u017eba zlata spotrebuje viac ako 139 TWh ro\u010dne.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"alignleft size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/05\/Energy-consumption-by-cryptocurrency.-Source-TRG-Datacenters.jpg\" alt=\"Kryptomeny-zne\u010distenie-spotreba energie\" class=\"wp-image-7321\" width=\"383\" height=\"407\" srcset=\"https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/05\/Energy-consumption-by-cryptocurrency.-Source-TRG-Datacenters.jpg 501w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/05\/Energy-consumption-by-cryptocurrency.-Source-TRG-Datacenters-283x300.jpg 283w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/05\/Energy-consumption-by-cryptocurrency.-Source-TRG-Datacenters-141x150.jpg 141w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/05\/Energy-consumption-by-cryptocurrency.-Source-TRG-Datacenters-11x12.jpg 11w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/05\/Energy-consumption-by-cryptocurrency.-Source-TRG-Datacenters-170x180.jpg 170w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/05\/Energy-consumption-by-cryptocurrency.-Source-TRG-Datacenters-485x515.jpg 485w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/05\/Energy-consumption-by-cryptocurrency.-Source-TRG-Datacenters-478x508.jpg 478w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/05\/Energy-consumption-by-cryptocurrency.-Source-TRG-Datacenters-348x370.jpg 348w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/05\/Energy-consumption-by-cryptocurrency.-Source-TRG-Datacenters-439x466.jpg 439w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/05\/Energy-consumption-by-cryptocurrency.-Source-TRG-Datacenters-306x325.jpg 306w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/05\/Energy-consumption-by-cryptocurrency.-Source-TRG-Datacenters-231x245.jpg 231w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/05\/Energy-consumption-by-cryptocurrency.-Source-TRG-Datacenters-188x200.jpg 188w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/05\/Energy-consumption-by-cryptocurrency.-Source-TRG-Datacenters-287x305.jpg 287w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/05\/Energy-consumption-by-cryptocurrency.-Source-TRG-Datacenters-63x67.jpg 63w\" sizes=\"auto, (max-width: 383px) 100vw, 383px\" \/><figcaption>Spotreba energie kryptomenou. Zdroj: Datacentr\u00e1 TRG<\/figcaption><\/figure><\/div>\n\n\n\n<p>Okrem Bitcoin spotrebuje Ethereum pribli\u017ene 48 TWh ro\u010dne [<a href=\"https:\/\/digiconomist.net\/ethereum-energy-consumption\/\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">Digikon\u00f3m<\/a>]. Minul\u00fd mesiac navy\u0161e firma <a href=\"https:\/\/www.trgdatacenters.com\/most-environment-friendly-cryptocurrencies\/\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">Datacentr\u00e1 TRG<\/a> vypo\u010d\u00edtal po\u010det spotrebovan\u00fdch kWh na transakciu v r\u00f4znych kryptomen\u00e1ch.<\/p>\n\n\n\n<p>Ako uvid\u00edme nesk\u00f4r, spotreba energie m\u00e1 ve\u013ea spolo\u010dn\u00e9ho so zne\u010disten\u00edm a zmenou kl\u00edmy.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Kde sa berie energia na \u0165a\u017ebu kryptomien?<\/strong><\/h2>\n\n\n\n<p>Ako sme u\u017e uviedli, ban\u00edci si zvy\u010dajne vyberaj\u00fa lacnej\u0161ie obnovite\u013en\u00e9 zdroje. Firma <a href=\"https:\/\/coinshares.com\/assets\/resources\/Research\/bitcoin-mining-network-june-2019-fidelity-foreword.pdf\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">CoinShares<\/a> vypo\u010d\u00edtal to&nbsp;<strong>viac ako 74% \u0165a\u017eby Bitcoin vyu\u017e\u00edva obnovite\u013en\u00e9 zdroje energie, ako s\u00fa vodn\u00e9, sol\u00e1rne a geoterm\u00e1lne<\/strong>. Na druhej strane, CBEI uv\u00e1dza, \u017ee v \u010c\u00edne \u0165a\u017e\u00ed 65% z Bitcoin. V tejto krajine predstavovalo uhlie v roku 2020 56,81 TP1T dom\u00e1cej v\u00fdroby energie [<a href=\"https:\/\/www.cnbc.com\/2021\/04\/29\/climate-china-has-no-other-choice-but-to-rely-on-coal-power-for-now.html\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">CNBC<\/a>]. A to je zl\u00e1 spr\u00e1va pre kryptomeny a zne\u010distenie.<\/p>\n\n\n\n<p>Napriek tomu existuj\u00fa alternat\u00edvne te\u00f3rie. Predt\u00fdm, ako o tom budeme hovori\u0165, mali by sme sa dozvedie\u0165, \u010do je non-konkuren\u010dn\u00e1 energia. \u201eBezkonkuren\u010dn\u00fd tovar je verejn\u00fdm statkom. Ka\u017ed\u00fd m\u00e1 pr\u00edstup k ich pou\u017e\u00edvaniu a ich pou\u017e\u00edvanie nezni\u017euje ich dostupnos\u0165 pre bud\u00face pou\u017eitie \u201c[<a href=\"https:\/\/askinglot.com\/what-is-a-nonrival-resource\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">Askinglot<\/a>]. V energetickom sektore to zvy\u010dajne znamen\u00e1 prebyto\u010dn\u00fa (a plytvan\u00fa) energiu, ktor\u00fa nikto nevyu\u017eije, preto\u017ee dopyt je u\u017e naplnen\u00fd.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/05\/light-bulb-984551_1280-1024x576.jpg\" alt=\"bitcoin-tesla-zelen\u00e1-energia\" class=\"wp-image-7315\" srcset=\"https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/05\/light-bulb-984551_1280-1024x576.jpg 1024w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/05\/light-bulb-984551_1280-300x169.jpg 300w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/05\/light-bulb-984551_1280-150x84.jpg 150w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/05\/light-bulb-984551_1280-18x10.jpg 18w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/05\/light-bulb-984551_1280-270x152.jpg 270w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/05\/light-bulb-984551_1280-770x433.jpg 770w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/05\/light-bulb-984551_1280-903x508.jpg 903w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/05\/light-bulb-984551_1280-900x506.jpg 900w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/05\/light-bulb-984551_1280-370x208.jpg 370w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/05\/light-bulb-984551_1280-554x312.jpg 554w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/05\/light-bulb-984551_1280-306x172.jpg 306w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/05\/light-bulb-984551_1280-260x146.jpg 260w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/05\/light-bulb-984551_1280-87x49.jpg 87w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/05\/light-bulb-984551_1280.jpg 1280w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n\n<p>Ke\u010f teda hovor\u00edme o <a href=\"https:\/\/alfacash.blog\/2021\/03\/11\/top-countries-most-crypto-users-laws\/\" target=\"_blank\" rel=\"noreferrer noopener\">\u010c\u00ednski ban\u00edci<\/a>, p\u00f4sobia v niektor\u00fdch konkr\u00e9tnych provinci\u00e1ch: Xinjiang, Sichuan, Vn\u00fatorn\u00e9 Mongolsko a Yunnan [CBEI]. Energia je tu nadbyto\u010dn\u00e1 a \u010diasto\u010dne obnovite\u013en\u00e1. Preto <strong>je pravdepodobn\u00e9, \u017ee v\u00e4\u010d\u0161ina ban\u00edkov Bitcoin v \u010c\u00edne pou\u017e\u00edva nekonkuren\u010dn\u00fa energiu, <\/strong>ako bolo pop\u00edsan\u00e9 <a href=\"https:\/\/medium.com\/@nic__carter\/noahbjectivity-on-bitcoin-mining-2052226310cb\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">Nic Carter<\/a>, spoluzakladate\u013e Coinmetrics.<\/p>\n\n\n\n<p>Pokia\u013e ide o ostatn\u00e9 mince PoW, m\u00f4\u017eeme len h\u00e1da\u0165. Napr\u00edklad v\u00e4\u010d\u0161ina \u0165a\u017eby <a href=\"https:\/\/blockchair.com\/es\/litecoin\/nodes\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">uzly Litecoinu<\/a> s\u00fa v USA, Nemecku a Franc\u00fazsku. V t\u00fdchto krajin\u00e1ch predstavuje energia z obnovite\u013en\u00fdch zdrojov 20% [<a href=\"https:\/\/www.eia.gov\/tools\/faqs\/faq.php?id=92&amp;t=4#:~:text=In%202020%2C%20renewable%20energy%20sources,about%2020%25%20of%20electricity%20generation.&amp;text=Preliminary%20data.\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">EIA<\/a>], 46.3% [<a href=\"https:\/\/www.reuters.com\/article\/germany-power-renewables-idUKKBN28O1AH\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">Reuters<\/a>] a 33.2% [<a href=\"https:\/\/renews.biz\/63340\/france-renewables-capacity-swells-to-547gw\/#:~:text=Renewable%20energy%20contributed%2033.2%25%20to,the%20same%20quarter%20in%202019.\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">Obnovuje<\/a>], resp.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Pre\u010do Bitcoin (a \u010fal\u0161ie) nemen\u00ed \u0165a\u017ebu?<\/strong><\/h2>\n\n\n\n<p>To znie ako \u013eahk\u00e9 rie\u0161enie, v\u0161ak? Pre\u010do mince PoW neop\u00fa\u0161\u0165aj\u00fa tento syst\u00e9m a nenahr\u00e1dzaj\u00fa ho PoS? No nie je to tak\u00e9 \u013eahk\u00e9. V prvom rade si zapam\u00e4tajme <a href=\"https:\/\/alfacash.blog\/2021\/01\/24\/what-proof-of-stake-pos-coins-passive-income\/\" target=\"_blank\" rel=\"noreferrer noopener\">\u010do je Proof-of-Stake<\/a>. V syst\u00e9moch PoS (a coinoch) je fig\u00farka \u201eban\u00edka\u201c nahraden\u00e1 \u201evalid\u00e1torom\u201c. Tento valid\u00e1tor, ktor\u00fdm m\u00f4\u017ee by\u0165 ktoko\u013evek, kto chce, nebude potrebova\u0165 energiu ani \u0161pecializovan\u00e9 stroje. Namiesto toho urobia to, \u017ee uzamkn\u00fa v \u0161peci\u00e1lnej pe\u0148a\u017eenke ur\u010dit\u00e9 mno\u017estvo nat\u00edvnych tokenov, ktor\u00e9 predt\u00fdm z\u00edskali.&nbsp;<\/p>\n\n\n\n<p>Z\u00edskaj\u00fa teda pr\u00e1vo na overenie transakci\u00ed a razenie nov\u00fdch minc\u00ed, ak je to potrebn\u00e9, a to takmer automaticky. A bud\u00fa za to odmenen\u00ed ako pas\u00edvny pr\u00edjem. Ale nie v\u0161etko je dokonal\u00e9.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"682\" src=\"https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/scam-4126798_1280-1-1024x682.jpg\" alt=\"\" class=\"wp-image-5920\" srcset=\"https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/scam-4126798_1280-1-1024x682.jpg 1024w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/scam-4126798_1280-1-300x200.jpg 300w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/scam-4126798_1280-1-150x100.jpg 150w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/scam-4126798_1280-1-18x12.jpg 18w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/scam-4126798_1280-1-270x180.jpg 270w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/scam-4126798_1280-1-770x513.jpg 770w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/scam-4126798_1280-1-762x508.jpg 762w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/scam-4126798_1280-1-773x515.jpg 773w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/scam-4126798_1280-1-370x247.jpg 370w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/scam-4126798_1280-1-554x369.jpg 554w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/scam-4126798_1280-1-306x204.jpg 306w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/scam-4126798_1280-1-368x245.jpg 368w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/scam-4126798_1280-1-260x173.jpg 260w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/scam-4126798_1280-1-87x58.jpg 87w, https:\/\/alfacash.blog\/wp-content\/uploads\/2020\/10\/scam-4126798_1280-1.jpg 1280w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n\n<p><strong>Existuje riziko, \u017ee niektor\u00ed kvalifikovan\u00ed v\u00fdvoj\u00e1ri skop\u00edruj\u00fa (rozdvojia) blockchain<\/strong> a sk\u00e1\u010de medzi p\u00f4vodn\u00fdm re\u0165azcom, kde u\u017e peniaze minuli, a nov\u00fdm re\u0165azcom, kde napr\u00edklad nie (a dvakr\u00e1t minie rovnak\u00e9 mince). Tu neexistuje \u201epr\u00e1ca\u201c na overovan\u00ed transakci\u00ed, iba zainteresovan\u00e9 strany. Toto sa naz\u00fdva \u201e<a href=\"https:\/\/smithandcrown.com\/glossary\/nothing-stake-problem\/#:~:text=The%20%E2%80%9Cnothing%2Dat%2Dstake,%2Dof%2Dstake%20consensus%20mechanisms.\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">Probl\u00e9m ni\u010d v st\u00e1vke<\/a>\u201dPreto\u017ee v novom (kop\u00edrovanom) re\u0165azci nie je \u010do strati\u0165, ak podv\u00e1dzate.<\/p>\n\n\n\n<p>PoW syst\u00e9my s\u00fa teda st\u00e1le robustnej\u0161ie a bezpe\u010dnej\u0161ie. Preto sa v\u00e4\u010d\u0161ina v\u00fdvoj\u00e1rov a pou\u017e\u00edvate\u013eov st\u00e1le dr\u017e\u00ed PoW, napriek jeho nev\u00fdhod\u00e1m. <a href=\"https:\/\/alfacash.blog\/2020\/11\/14\/ethereum-2-new-features-prices-more-ethereum-chains\/\" target=\"_blank\" rel=\"noreferrer noopener\">Ethereum je in\u00fd pr\u00edpad<\/a>, predsa. U\u017e je v procese opustenia PoW a prijatia PoS. V bud\u00facnosti by sa mohol objavi\u0165 in\u00fd syst\u00e9m, lep\u0161\u00ed ako PoW alebo PoS. V takom pr\u00edpade by Bitcoin a \u010fal\u0161ie kryptomeny pravdepodobne migrovali do tohto syst\u00e9mu. &nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Zvy\u0161uj\u00fa kryptomeny klimatick\u00e9 zmeny?<\/strong><\/h2>\n\n\n\n<p>Spotreba energie n\u00e1s priv\u00e1dza k uhl\u00edkovej stope (zne\u010distenie), ktor\u00e1 m\u00f4\u017ee z dlhodob\u00e9ho h\u013eadiska vies\u0165 k zmene kl\u00edmy. <a href=\"https:\/\/blueskymodel.org\/kilowatt-hour\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">BlueSkyModel<\/a> vypo\u010d\u00edtava, \u017ee v priemere jedna kilowatthodina vyprodukuje nie\u010do viac ako jednu libru (0,45 kg) oxidu uhli\u010dit\u00e9ho (CO2). Vzh\u013eadom na to a \u00fadaje spolo\u010dnosti Digiconomist, <strong>Bitcoin by produkoval pribli\u017ene 55,86 mili\u00f3na ton CO2 ro\u010dne.<\/strong><\/p>\n\n\n\n<p>Na druhej strane bankov\u00fd priemysel spotrebuje asi 639 TWh ro\u010dne. Potom by tento samotn\u00fd priemysel uvo\u013enil do atmosf\u00e9ry pribli\u017ene 319,5 Mt CO2. <a href=\"https:\/\/alfacash.blog\/2020\/10\/26\/bitcoin-can-compete-gold-states-investment-bank-jpmorgan\/\" target=\"_blank\" rel=\"noreferrer noopener\">Ta\u017eba zlata<\/a>Spotrebuje pribli\u017ene 138,9 TWh ro\u010dne, \u010do znamen\u00e1 69,4 Mt CO2. Celkov\u00e9 emisie pre glob\u00e1lne hospod\u00e1rske zvierat\u00e1 s\u00fa e\u0161te \u00fa\u017easnej\u0161ie: 7,1 Gt CO2 ro\u010dne [<a href=\"http:\/\/www.fao.org\/news\/story\/es\/item\/197623\/icode\/#:~:text=Total%20emissions%20from%20global%20livestock,of%20all%20anthropogenic%20GHG%20emissions.\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">OSN FAO<\/a>]. Ale jes\u0165 mus\u00edme. V\u0161etko je teda o uhle poh\u013eadu.<\/p>\n\n\n\n<p>Pod\u013ea <a href=\"https:\/\/news.climate.columbia.edu\/2019\/07\/30\/co2-drives-global-warming\/#:~:text=Scientists%20say%20that%20if%20CO2,two%20and%20five%20degrees%20Celsius.\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">Klimatick\u00e1 \u0161kola Columbia<\/a>\u201eVedci tvrdia, \u017ee ak sa CO2 zdvojn\u00e1sob\u00ed, mohlo by to do konca tohto storo\u010dia (2100) zv\u00fd\u0161i\u0165 priemern\u00fa glob\u00e1lnu teplotu Zeme o dva a\u017e p\u00e4\u0165 stup\u0148ov Celzia\u201c. Bitcoin a kryptomeny v\u0161ak z\u010faleka nie s\u00fa hlavn\u00fdm probl\u00e9mom zne\u010distenia plan\u00e9ty.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"735\" height=\"439\" src=\"https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/01\/Bitcoin-is-far-behind-the-biggest-energy-consumers-in-the-world.-Source-CCAF.jpg\" alt=\"\" class=\"wp-image-6469\" srcset=\"https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/01\/Bitcoin-is-far-behind-the-biggest-energy-consumers-in-the-world.-Source-CCAF.jpg 735w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/01\/Bitcoin-is-far-behind-the-biggest-energy-consumers-in-the-world.-Source-CCAF-300x179.jpg 300w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/01\/Bitcoin-is-far-behind-the-biggest-energy-consumers-in-the-world.-Source-CCAF-150x90.jpg 150w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/01\/Bitcoin-is-far-behind-the-biggest-energy-consumers-in-the-world.-Source-CCAF-18x12.jpg 18w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/01\/Bitcoin-is-far-behind-the-biggest-energy-consumers-in-the-world.-Source-CCAF-270x161.jpg 270w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/01\/Bitcoin-is-far-behind-the-biggest-energy-consumers-in-the-world.-Source-CCAF-370x221.jpg 370w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/01\/Bitcoin-is-far-behind-the-biggest-energy-consumers-in-the-world.-Source-CCAF-554x331.jpg 554w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/01\/Bitcoin-is-far-behind-the-biggest-energy-consumers-in-the-world.-Source-CCAF-306x183.jpg 306w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/01\/Bitcoin-is-far-behind-the-biggest-energy-consumers-in-the-world.-Source-CCAF-260x155.jpg 260w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/01\/Bitcoin-is-far-behind-the-biggest-energy-consumers-in-the-world.-Source-CCAF-87x52.jpg 87w\" sizes=\"auto, (max-width: 735px) 100vw, 735px\" \/><figcaption>Bitcoin je \u010faleko za najv\u00e4\u010d\u0161\u00edmi spotrebite\u013emi energie na svete. Zdroj: CCAF<\/figcaption><\/figure><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Existuje rie\u0161enie probl\u00e9mu s PoW?<\/strong><\/h2>\n\n\n\n<p>Toto je nedokon\u010den\u00e1 v\u00fdroba, ale existuje nieko\u013eko iniciat\u00edv na \u0165a\u017ebu s obnovite\u013en\u00fdmi zdrojmi. Koncom minul\u00e9ho roka spolo\u010dnos\u0165 Square <a href=\"https:\/\/www.businesswire.com\/news\/home\/20201208005461\/en\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">ozn\u00e1mil<\/a> vytvorenie investi\u010dnej iniciat\u00edvy Bitcoin \u010cist\u00e1 energia. Maj\u00fa za cie\u013e urobi\u0165 z tohto odvetvia prispievate\u013ea s nulov\u00fdmi emisiami uhl\u00edka.<\/p>\n\n\n\n<p>V rovnakom duchu, <a href=\"https:\/\/alfacash.blog\/2021\/03\/08\/bitcoin-ethereum-go-bullish-again-new-investments\/\" target=\"_blank\" rel=\"noreferrer noopener\">minul\u00fd mesiac<\/a>, n\u00f3rsky energetick\u00fd gigant Aker Solutions ozn\u00e1mil vytvorenie Seetee, novej dc\u00e9rskej spolo\u010dnosti zameranej na kryptomeny. <strong>Maj\u00fa tie\u017e v\u00fdznam podporova\u0165 \u0165a\u017ebu Bitcoin s obnovite\u013en\u00fdmi zdrojmi.<\/strong><\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/05\/sky-1392241_1920-1024x683.jpg\" alt=\"kryptomeny-zne\u010distenie-obnovite\u013en\u00e1-energia\" class=\"wp-image-7326\" srcset=\"https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/05\/sky-1392241_1920-1024x683.jpg 1024w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/05\/sky-1392241_1920-300x200.jpg 300w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/05\/sky-1392241_1920-150x100.jpg 150w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/05\/sky-1392241_1920-1536x1024.jpg 1536w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/05\/sky-1392241_1920-18x12.jpg 18w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/05\/sky-1392241_1920-270x180.jpg 270w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/05\/sky-1392241_1920-770x513.jpg 770w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/05\/sky-1392241_1920-762x508.jpg 762w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/05\/sky-1392241_1920-773x515.jpg 773w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/05\/sky-1392241_1920-370x247.jpg 370w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/05\/sky-1392241_1920-554x369.jpg 554w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/05\/sky-1392241_1920-306x204.jpg 306w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/05\/sky-1392241_1920-368x245.jpg 368w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/05\/sky-1392241_1920-260x173.jpg 260w, https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/05\/sky-1392241_1920-87x58.jpg 87w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption>Fotografia Alexas_Fotos z Pixabay<\/figcaption><\/figure><\/div>\n\n\n\n<p>Pokia\u013e ide o elektronick\u00fd odpad sp\u00f4soben\u00fd zastaran\u00fdmi ASIC, st\u00e1le je to probl\u00e9m, ktor\u00e9mu je potrebn\u00e9 venova\u0165 v\u00e4\u010d\u0161iu pozornos\u0165. Niektor\u00ed \u013eudia navrhli ich op\u00e4tovn\u00e9 pou\u017eitie v projektoch ako <a href=\"https:\/\/foldingathome.org\/\" target=\"_blank\" rel=\"noreferrer noopener\">Skladacie@domov<\/a> od Stanforda. Cie\u013eom tu je poskytn\u00fa\u0165 v\u00fdpo\u010dtov\u00fd v\u00fdkon ich syst\u00e9mov s cie\u013eom simulova\u0165 dynamiku bielkov\u00edn a tak vyvin\u00fa\u0165 nov\u00e9 terapeutik\u00e1 pre r\u00f4zne choroby. Pr\u00e1ve sa zameriavaj\u00fa na COVID-19.<\/p>\n\n\n\n<p>Je \u0165a\u017ek\u00e9 vedie\u0165, \u010do prinesie bud\u00facnos\u0165. Kryptomeny sa ale pripravuj\u00fa samy, vr\u00e1tane \u010dasti o zne\u010disten\u00ed.<\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p><em>Chcete tento pr\u00edbeh vidie\u0165 vo videu? M\u00e1me \u0165a!<\/em><\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Je Bitcoin \u0161kodliv\u00fd pre \u017eivotn\u00e9 prostredie?\" width=\"770\" height=\"433\" src=\"https:\/\/www.youtube.com\/embed\/hXaQUy-8kek?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p class=\"has-text-align-center\"><em>Chcete obchodova\u0165 s Bitcoin a in\u00fdmi \u017eet\u00f3nmi? Ty to dok\u00e1\u017ee\u0161<\/em>\u00a0<em>bezpe\u010dne\u00a0<a href=\"https:\/\/www.alfa.cash\/buy\/bitcoin\" target=\"_blank\" rel=\"noreferrer noopener\">na Alfacash<\/a>! A nezabudnite, \u017ee o tomto a o mnoh\u00fdch \u010fal\u0161\u00edch veciach hovor\u00edme na na\u0161ich soci\u00e1lnych sie\u0165ach.<\/em><\/p>\n\n\n\n<p class=\"has-text-align-center\"><a href=\"https:\/\/twitter.com\/alfacash_crypto\" target=\"_blank\" rel=\"noreferrer noopener\">Twitter<\/a>&nbsp;*&nbsp;<a href=\"https:\/\/t.me\/AlfacashCommunity\" target=\"_blank\" rel=\"noreferrer noopener\">Telegram<\/a>&nbsp;*&nbsp;<a href=\"https:\/\/www.facebook.com\/alfacashstore\" target=\"_blank\" rel=\"noreferrer noopener\">Facebook<\/a>&nbsp;*&nbsp;<a href=\"https:\/\/www.instagram.com\/alfacashstore\" target=\"_blank\" rel=\"noreferrer noopener\">Instagram<\/a> * <a href=\"https:\/\/www.youtube.com\/channel\/UCOl4fdRHj8AseQ5b6z9udaw\" target=\"_blank\" rel=\"noreferrer noopener\">YouTube<\/a>&nbsp;*&nbsp;<a href=\"https:\/\/vk.com\/alfacashcrypto\" target=\"_blank\" rel=\"noreferrer noopener\">Vkontakte<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Kryptos nie s\u00fa pr\u00e1ve p\u013euvaj\u00faci \u010dierny dym. S\u00fa teda kryptomeny skuto\u010dne zdrojom zne\u010distenia? Ako? Teraz je \u010das to objavi\u0165!<\/p>","protected":false},"author":5,"featured_media":7327,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_sitemap_exclude":false,"_sitemap_priority":"","_sitemap_frequency":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[48],"tags":[329,61,319,330,72,331,181,332],"class_list":{"0":"post-7319","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-learn","8":"tag-climate-change","9":"tag-cryptocurrencies","10":"tag-energy","11":"tag-environment","12":"tag-mining","13":"tag-pollution","14":"tag-pos","15":"tag-pow"},"featured_image_src":"https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/05\/04-scaled.jpg","author_info":{"display_name":"Isabel P\u00e9rez","author_link":"https:\/\/alfacash.blog\/sk\/author\/isabel\/"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.4 (Yoast SEO v25.4) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>FAQ: Cryptocurrencies, pollution, and climate change - alfa.cash blog<\/title>\n<meta name=\"description\" content=\"Cryptos aren&#039;t exactly spitting black smoke. 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