{"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-kryptowaluty-zanieczyszczenia-zmiany-klimatu","status":"publish","type":"post","link":"https:\/\/alfacash.blog\/pl\/2021\/05\/16\/faq-kryptowaluty-zanieczyszczenia-zmiany-klimatu\/","title":{"rendered":"Cz\u0119sto zadawane pytania: kryptowaluty, zanieczyszczenia i zmiany klimatyczne"},"content":{"rendered":"<p>Musia\u0142e\u015b ju\u017c to s\u0142ysze\u0107: kryptowaluty nie s\u0105 zbyt przyjazne dla \u015brodowiska. Maj\u0105 z\u0142y wp\u0142yw na \u015brodowisko, zwi\u0119kszaj\u0105 zmiany klimatyczne, s\u0105 \u201ekatastrof\u0105 ekologiczn\u0105\u201d [Agustin Carstens] i tak dalej. Czy to wszystko prawda? Kryptowaluty powoduj\u0105 zanieczyszczenie i przyczyniaj\u0105 si\u0119 do zmian klimatycznych?<\/p>\n\n\n\n<p>Niedawno, <a href=\"https:\/\/alfacash.blog\/2021\/05\/13\/tesla-rejects-bitcoin-environmental-concerns-its-right\/\" target=\"_blank\" rel=\"noreferrer noopener\">Tesla si\u0119 zatrzyma\u0142<\/a> przyjmowanie p\u0142atno\u015bci Bitcoin (BTC) <strong>za uznanie tego za \u201ewielki koszt dla \u015brodowiska\u201d.<\/strong> Jak to mo\u017cliwe? S\u0105 cyfrowe, prawda? Nie dok\u0142adnie pluj\u0105 czarnym dymem w czyste niebo. C\u00f3\u017c, teraz nadszed\u0142 czas, aby rozwia\u0107 wszystkie twoje w\u0105tpliwo\u015bci. &nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Kryptowaluty = zanieczyszczenie? Czemu?<\/strong><\/h2>\n\n\n\n<p>Na pocz\u0105tek nie ka\u017cda kryptowaluta mo\u017ce powodowa\u0107 zanieczyszczenie. Prawdziwy problem pochodzi z <a href=\"https:\/\/alfacash.blog\/2020\/08\/25\/cryptocurrency-mining-dummies-how-works\/\" target=\"_blank\" rel=\"noreferrer noopener\">Wydobycie Proof-of-Work (PoW)<\/a>. Ten jest algorytmem, a przez \u201ealgorytm\u201d rozumiemy zestaw krok\u00f3w i metod, kt\u00f3re s\u0105 budowane (za pomoc\u0105 matematyki) w celu osi\u0105gni\u0119cia okre\u015blonego wyniku lub rozwi\u0105zania problemu. Dok\u0142adnie to robi PoW: rozwija trudny problem matematyczny lub zagadk\u0119, kt\u00f3r\u0105 g\u00f3rnicy musz\u0105 rozwi\u0105za\u0107, aby zweryfikowa\u0107 wirtualne transakcje i \u201ewydoby\u0107\u201d troch\u0119 monet.<\/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-monety-gar\u015b\u0107-portfel\" 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>G\u00f3rnicy konkuruj\u0105 z innymi, aby najpierw \u201eznale\u017a\u0107\u201d monety, a ich ca\u0142kowita moc obliczeniowa pomaga zabezpieczy\u0107 sie\u0107. Mimo to nie brzmi to zbyt zanieczyszczaj\u0105co, prawda? Problemem jest ta zagadka. Nikt tak naprawd\u0119 nie jest w stanie go rozwi\u0105za\u0107 z pr\u0119dko\u015bci\u0105 wymagan\u0105 do rywalizacji. Tylko komputery i niekt\u00f3re specjalistyczne urz\u0105dzenia (<a href=\"https:\/\/alfacash.blog\/2020\/11\/21\/easy-crypto-miners-how-mine-cryptocurrencies-problems\/\" target=\"_blank\" rel=\"noreferrer noopener\">G\u00f3rnicy ASIC<\/a>) mog\u0119 to zrobi\u0107. I nie same: potrzebuj\u0105 du\u017co energii, aby pr\u00f3bowa\u0107 raz za razem, a\u017c do znalezienia rozwi\u0105zania. St\u0105d \u201edzie\u0142o\u201d w dowodzie.<\/p>\n\n\n\n<p><strong>Wi\u0119c je\u015bli nie wiesz, du\u017co energii elektrycznej jest zwykle r\u00f3wne wi\u0119kszemu zanieczyszczeniu, <\/strong>w zale\u017cno\u015bci od tego, sk\u0105d pochodzi ta energia. W\u0119giel i inne paliwa kopalne s\u0105 powszechnymi \u017ar\u00f3d\u0142ami energii elektrycznej na ca\u0142ym \u015bwiecie. Dlatego je\u015bli energia do wydobywania kryptowalut pochodzi z w\u0119gla, oznacza\u0142oby to bardziej szkodliwe emisje dla planety. &nbsp;<\/p>\n\n\n\n<p>Z drugiej strony mamy maszyny ASIC. Zosta\u0142y zaprojektowane specjalnie do kopania kryptowalut i niczego wi\u0119cej. Nie b\u0119d\u0105 one jednak trwa\u0107 d\u0142ugo, poniewa\u017c trudno\u015b\u0107 wydobywania kryptowalut zawsze ro\u015bnie wraz z liczb\u0105 kopaczy, kt\u00f3rzy do\u0142\u0105czaj\u0105 do sieci (ze wzgl\u0119d\u00f3w bezpiecze\u0144stwa). Po zako\u0144czeniu okresu przydatno\u015bci (oko\u0142o 1,5 roku) mog\u0105 <a href=\"https:\/\/digiconomist.net\/bitcoin-electronic-waste-monitor\/\" target=\"_blank\" rel=\"noreferrer noopener\">sta\u0107 si\u0119 e-odpadem<\/a> i, po prostu, dodaj\u0105c wi\u0119cej \u015bmieci kryptowalut do stosu zanieczyszcze\u0144.<\/p>\n\n\n\n<p>Oczywi\u015bcie dzieje si\u0119 tak tylko w przypadku kryptowalut PoW. Inne systemy, takie jak Proof-of-Stake (PoS), nie maj\u0105 tego problemu z kopaniem.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Jakie krypty powoduj\u0105 zanieczyszczenie, a kt\u00f3re nie?<\/strong><\/h2>\n\n\n\n<p>To skomplikowana odpowied\u017a. Nawet w przypadku kryptowalut PoW, <strong>wszystko zale\u017cy od \u017ar\u00f3d\u0142a energii i alternatywnych zastosowa\u0144 ASIC.<\/strong> Wi\u0119kszo\u015b\u0107 g\u00f3rnik\u00f3w wybiera lokalizacje, w kt\u00f3rych dominuj\u0105cym \u017ar\u00f3d\u0142em energii jest odnawialne, a niekt\u00f3rzy z nich ju\u017c wykorzystuj\u0105 swoje ASIC do dodatkowych funkcji, takich jak <a href=\"https:\/\/twitter.com\/Jonbros01\/status\/1064224854164074497?ref_src=twsrc%5Etfw\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">ogrzewanie<\/a> lub uprawy pomidor\u00f3w (<a href=\"https:\/\/twitter.com\/KamilBrejcha\/status\/972438246528569344\" target=\"_blank\" rel=\"noreferrer noopener\">naprawd\u0119<\/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 pomy\u015bla\u0142, \u017ce kopanie kryptowalut i rolnictwo mog\u0105 ze sob\u0105 wsp\u00f3\u0142pracowa\u0107? Pierwsza partia kryptomatom jest gotowa do zbioru. Nadmiar ciep\u0142a wykorzystujemy do szklarni pomidorowej i dzia\u0142a :-) <a href=\"https:\/\/t.co\/U7qqKTshqO\">pic.twitter.com\/U7qqKTshqO<\/a><\/p>\u2014 Kamil Brejcha (@KamilBrejcha) <a href=\"https:\/\/twitter.com\/KamilBrejcha\/status\/972438246528569344?ref_src=twsrc%5Etfw\">10 marca 2018 r.<\/a><\/blockquote><script async src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script>\n<\/div><\/figure>\n\n\n\n<p>Mo\u017cemy r\u00f3wnie\u017c wzi\u0105\u0107 pod uwag\u0119, \u017ce istniej\u0105 \u201el\u017cejsze\u201d wersje PoW. Nie wymagaj\u0105 do dzia\u0142ania uk\u0142ad\u00f3w ASIC, tylko komputer\u00f3w, a zu\u017cycie energii jest umiarkowane. Tak jest w przypadku <a href=\"https:\/\/alfacash.blog\/2021\/03\/29\/discover-monero-how-use-it-full-privacy\/\" target=\"_blank\" rel=\"noreferrer noopener\">Monero (XMR)<\/a>, na przyk\u0142ad. W przeciwie\u0144stwie do tego, Bitcoin jest nadal najtrudniejsz\u0105 monet\u0105 do wydobycia i wymaga du\u017co energii i ASIC\u00f3w. Dlatego jej g\u00f3rnicy najcz\u0119\u015bciej wybieraj\u0105 ta\u0144sze \u017ar\u00f3d\u0142a odnawialne.<\/p>\n\n\n\n<p>Wed\u0142ug <a href=\"https:\/\/cryptoslate.com\/coins\/\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">CryptoSlate<\/a>, istnieje ponad 406 monet PoW. Nale\u017c\u0105 do nich kilka najpopularniejszych: Bitcoin, <a href=\"https:\/\/alfacash.blog\/2020\/11\/04\/what-litecoin-ultimate-history-silver-cryptocurrencies\/\" target=\"_blank\" rel=\"noreferrer noopener\">Litecoin (LTC),<\/a> Bitcoin got\u00f3wka (BCH), Ethereum (ETH), <a href=\"https:\/\/alfacash.blog\/2020\/09\/18\/little-story-dogecoin-shiba-inus-cryptocurrency\/\" target=\"_blank\" rel=\"noreferrer noopener\">Moneta Doge (DOGE),<\/a> Zcash (ZEC) i Monero (XMR).<strong> Po drugiej stronie znajduje si\u0119 ponad 546 monet typu PoS,<\/strong> w\u0142\u0105cznie z <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 i EOS.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Ile energii zu\u017cywaj\u0105 kryptowaluty PoW?<\/strong><\/h2>\n\n\n\n<p>Nie mo\u017cemy tego wiedzie\u0107 na pewno, ale mamy kilka przegl\u0105d\u00f3w dla Bitcoin. Wed\u0142ug Cambridge Bitcoin Zu\u017cycie energii elektrycznej (<a href=\"https:\/\/cbeci.org\/\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">CBEI<\/a>), Bitcoin zu\u017cywa oko\u0142o 148 TWh rocznie, czyli wi\u0119cej ni\u017c Szwecja, Ukraina czy Holandia. Ze swojej strony <a href=\"https:\/\/digiconomist.net\/bitcoin-energy-consumption\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">Digiconomist<\/a> oblicza oko\u0142o 117 TWh rocznie.<\/p>\n\n\n\n<p>Jednocze\u015bnie, zgodnie z opisem CBEI, <strong>Bitcoin stanowi jedynie 0,69% ca\u0142kowitego zu\u017cycia energii na ca\u0142ym \u015bwiecie.<\/strong> Poza tym \u201eilo\u015b\u0107 energii elektrycznej zu\u017cywanej ka\u017cdego roku przez stale w\u0142\u0105czone, ale nieaktywne urz\u0105dzenia domowe w samych Stanach Zjednoczonych mo\u017ce zasila\u0107 sie\u0107 Bitcoin przez 1,5 roku\u201d. Por\u00f3wnuj\u0105c to z innymi \u201eformami pieni\u0105dza\u201d, r\u00f3wnie\u017c mo\u017cemy powiedzie\u0107, \u017ce <a href=\"https:\/\/cryptowords.github.io\/bitcoin-and-energy-consumption-rebuttal\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">bran\u017ca bankowa<\/a> zu\u017cywa ponad 639 TWh rocznie, a wydobycie z\u0142ota ponad 139 TWh rocznie.<\/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=\"Kryptowaluty-zanieczyszczenie-energia-zu\u017cycie\" 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>Zu\u017cycie energii przez kryptowalut\u0119. \u0179r\u00f3d\u0142o: Centra danych TRG<\/figcaption><\/figure><\/div>\n\n\n\n<p>Powy\u017cej Bitcoin, Ethereum zu\u017cywa oko\u0142o 48 TWh rocznie [<a href=\"https:\/\/digiconomist.net\/ethereum-energy-consumption\/\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">Digiconomist<\/a>]. Dodatkowo w zesz\u0142ym miesi\u0105cu firma <a href=\"https:\/\/www.trgdatacenters.com\/most-environment-friendly-cryptocurrencies\/\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">Centra danych TRG<\/a> obliczy\u0142 liczb\u0119 kWh zu\u017cytych na transakcj\u0119 w r\u00f3\u017cnych kryptowalutach.<\/p>\n\n\n\n<p>Jak zobaczymy p\u00f3\u017aniej, zu\u017cycie energii ma wiele wsp\u00f3lnego z zanieczyszczeniem i zmianami klimatycznymi.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Sk\u0105d pochodzi energia do kopania kryptowalut?<\/strong><\/h2>\n\n\n\n<p>Jak wspomnieli\u015bmy wcze\u015bniej, g\u00f3rnicy najcz\u0119\u015bciej wybieraj\u0105 ta\u0144sze \u017ar\u00f3d\u0142a odnawialne. 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> obliczy\u0142em, \u017ce&nbsp;<strong>ponad 74% z Bitcoin wydobycia wykorzystuje odnawialne \u017ar\u00f3d\u0142a energii, takie jak energia wodna, s\u0142oneczna i geotermalna<\/strong>. Z drugiej strony CBEI twierdzi, \u017ce 65% z Bitcoin wydobywa w Chinach. W tym kraju w\u0119giel stanowi\u0142 56,8% krajowej produkcji energii w 2020 roku [<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 z\u0142a wiadomo\u015b\u0107 dla kryptowalut i zanieczyszcze\u0144.<\/p>\n\n\n\n<p>Niemniej jednak istniej\u0105 teorie alternatywne. Zanim o tym porozmawiamy, powinni\u015bmy dowiedzie\u0107 si\u0119, czym jest energia bez rywalizacji. \u201eDobra niekonkurencyjne s\u0105 dobrami publicznymi. Ka\u017cdy ma dost\u0119p do korzystania z nich, a ich u\u017cycie nie zmniejsza ich dost\u0119pno\u015bci do wykorzystania w przysz\u0142o\u015bci\u201d [<a href=\"https:\/\/askinglot.com\/what-is-a-nonrival-resource\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">Zapytanie<\/a>]. W energetyce oznacza to zwykle nadwy\u017ck\u0119 (i zmarnowan\u0105) energi\u0119, kt\u00f3rej nikt nie wykorzysta, bo zapotrzebowanie jest ju\u017c zaspokojone.<\/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-zielona-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>Tak wi\u0119c, m\u00f3wi\u0105c o <a href=\"https:\/\/alfacash.blog\/2021\/03\/11\/top-countries-most-crypto-users-laws\/\" target=\"_blank\" rel=\"noreferrer noopener\">G\u00f3rnicy z Chin<\/a>dzia\u0142aj\u0105 w okre\u015blonych prowincjach: Xinjiang, Syczuan, Mongolia Wewn\u0119trzna i Yunnan [CBEI]. Energia jest tam nadmiarowa i cz\u0119\u015bciowo odnawialna. W zwi\u0105zku z tym, <strong>prawdopodobnie wi\u0119kszo\u015b\u0107 g\u00f3rnik\u00f3w Bitcoin w Chinach korzysta z energii niekonkurencyjnej, <\/strong>jak opisa\u0142 <a href=\"https:\/\/medium.com\/@nic__carter\/noahbjectivity-on-bitcoin-mining-2052226310cb\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">Nic Carter<\/a>, wsp\u00f3\u0142za\u0142o\u017cyciel Coinmetrics.<\/p>\n\n\n\n<p>Je\u015bli chodzi o reszt\u0119 monet PoW, mo\u017cemy tylko zgadywa\u0107. Na przyk\u0142ad wi\u0119kszo\u015b\u0107 wydobycia <a href=\"https:\/\/blockchair.com\/es\/litecoin\/nodes\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">w\u0119z\u0142y Litecoina<\/a> znajduj\u0105 si\u0119 w Stanach Zjednoczonych, Niemczech i Francji. W tych krajach energia odnawialna stanowi 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\">OO\u015a<\/a>], 46.3% [<a href=\"https:\/\/www.reuters.com\/article\/germany-power-renewables-idUKKBN28O1AH\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">Reuters<\/a>] oraz 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\">Odnawia<\/a>], odpowiednio.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Dlaczego Bitcoin (i inne) nie zmienia g\u00f3rnictwa?<\/strong><\/h2>\n\n\n\n<p>To brzmi jak proste rozwi\u0105zanie, prawda? Dlaczego monety PoW nie rezygnuj\u0105 z tego systemu i nie zast\u0119puj\u0105 go PoS? C\u00f3\u017c, to nie jest takie proste. Przede wszystkim pami\u0119tajmy <a href=\"https:\/\/alfacash.blog\/2021\/01\/24\/what-proof-of-stake-pos-coins-passive-income\/\" target=\"_blank\" rel=\"noreferrer noopener\">czym jest dow\u00f3d stawki<\/a>. W systemach PoS (i monetach) posta\u0107 \u201eg\u00f3rnika\u201d zast\u0119puje si\u0119 \u201ewalidatorem\u201d. Ten walidator, kt\u00f3rym mo\u017ce by\u0107 ka\u017cdy, kto chce, nie b\u0119dzie potrzebowa\u0142 energii ani specjalistycznych maszyn. Zamiast tego zamkn\u0105 w specjalnym portfelu pewn\u0105 ilo\u015b\u0107 natywnych token\u00f3w, kt\u00f3re wcze\u015bniej nabyli.&nbsp;<\/p>\n\n\n\n<p>Dzi\u0119ki temu uzyskaj\u0105 prawo do weryfikacji transakcji i wybicia nowych monet, je\u015bli to konieczne, i to prawie automatycznie. I zostan\u0105 za to wynagrodzeni jako doch\u00f3d pasywny. Ale nie wszystko jest idealne.<\/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>Istnieje ryzyko, \u017ce niekt\u00f3rzy wykwalifikowani programi\u015bci skopiuj\u0105 (rozwidl\u0105) blockchain<\/strong> i przeskakuje mi\u0119dzy oryginalnym \u0142a\u0144cuchem, w kt\u00f3rym ju\u017c wydali pieni\u0105dze, a nowym \u0142a\u0144cuchem, w kt\u00f3rym tego nie zrobili (i dwukrotnie wydali te same monety). Tu nie ma \u201epracy\u201d nad weryfikacj\u0105 transakcji, tylko interesariusze. Nazywa si\u0119 to \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\">Problem o nic w stawce<\/a>\u201d, poniewa\u017c w nowym (skopiowanym) \u0142a\u0144cuchu nie ma nic do stracenia, je\u015bli oszukujesz.<\/p>\n\n\n\n<p>Tak wi\u0119c systemy PoW s\u0105 jeszcze bardziej niezawodne i bezpieczne. Dlatego wi\u0119kszo\u015b\u0107 programist\u00f3w i u\u017cytkownik\u00f3w nadal trzyma si\u0119 PoW, pomimo jego wad. <a href=\"https:\/\/alfacash.blog\/2020\/11\/14\/ethereum-2-new-features-prices-more-ethereum-chains\/\" target=\"_blank\" rel=\"noreferrer noopener\">Ethereum to inny przypadek<\/a>, pomimo. Jest ju\u017c w trakcie porzucania PoW i przejmowania PoS. W przysz\u0142o\u015bci mo\u017ce pojawi\u0107 si\u0119 inny system, lepszy ni\u017c PoW czy PoS. W takim przypadku Bitcoin i inne krypto prawdopodobnie migrowa\u0142yby do tego systemu. &nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Czy kryptowaluty zwi\u0119kszaj\u0105 zmiany klimatyczne?<\/strong><\/h2>\n\n\n\n<p>Zu\u017cycie energii prowadzi nas do \u015bladu w\u0119glowego (zanieczyszczenia), co w d\u0142u\u017cszej perspektywie mo\u017ce prowadzi\u0107 do zmian klimatycznych. <a href=\"https:\/\/blueskymodel.org\/kilowatt-hour\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">BlueSkyModel<\/a> oblicza, \u017ce \u015brednio jedna kilowatogodzina wytwarza nieco ponad funt (0,45 kg) dwutlenku w\u0119gla (CO2). Bior\u0105c to pod uwag\u0119 oraz dane Digiconomist, <strong>Bitcoin b\u0119dzie produkowa\u0107 oko\u0142o 55,86 Mt CO2 rocznie.<\/strong><\/p>\n\n\n\n<p>Z drugiej strony sektor bankowy zu\u017cywa oko\u0142o 639 TWh rocznie. Wtedy sam ten przemys\u0142 uwolni\u0142by do atmosfery oko\u0142o 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\">Wydobywanie z\u0142ota<\/a>z kolei zu\u017cywa oko\u0142o 138,9 TWh rocznie, co przek\u0142ada si\u0119 na 69,4 Mt CO2. Ca\u0142kowite emisje dla globalnego inwentarza s\u0105 jeszcze bardziej zdumiewaj\u0105ce: 7,1 Gt CO2 rocznie [<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\">FAO ONZ<\/a>]. Ale musimy je\u015b\u0107. Tak wi\u0119c wszystko dotyczy perspektywy.<\/p>\n\n\n\n<p>Wed\u0142ug <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\">Kolumbijska Szko\u0142a Klimatyczna<\/a>\u201eNaukowcy twierdz\u0105, \u017ce je\u015bli CO2 si\u0119 podwoi, mo\u017ce podnie\u015b\u0107 \u015bredni\u0105 globaln\u0105 temperatur\u0119 Ziemi o dwa do pi\u0119ciu stopni Celsjusza\u201d do ko\u0144ca tego stulecia (2100). Jednak Bitcoin i kryptowaluty s\u0105 dalekie od bycia g\u0142\u00f3wnym problemem w zanieczyszczaniu planety.<\/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 jest daleko w tyle za najwi\u0119kszymi konsumentami energii na \u015bwiecie. \u0179r\u00f3d\u0142o: CCAF<\/figcaption><\/figure><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Czy istnieje rozwi\u0105zanie problemu PoW?<\/strong><\/h2>\n\n\n\n<p>Jest to praca w toku, ale istnieje kilka inicjatyw dotycz\u0105cych wydobycia z wykorzystaniem odnawialnych \u017ar\u00f3de\u0142 energii. Pod koniec ubieg\u0142ego roku firma Square <a href=\"https:\/\/www.businesswire.com\/news\/home\/20201208005461\/en\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">og\u0142osi\u0142<\/a> powstanie Inicjatywy Inwestycyjnej Czystej Energii Bitcoin. Maj\u0105 na celu uczynienie tej bran\u017cy wk\u0142adem o zerowej emisji dwutlenku w\u0119gla.<\/p>\n\n\n\n<p>W tej samej \u017cyle, <a href=\"https:\/\/alfacash.blog\/2021\/03\/08\/bitcoin-ethereum-go-bullish-again-new-investments\/\" target=\"_blank\" rel=\"noreferrer noopener\">w zesz\u0142ym miesi\u0105cu<\/a>, norweski gigant energetyczny Aker Solutions og\u0142osi\u0142 utworzenie Seetee, nowej sp\u00f3\u0142ki zale\u017cnej skoncentrowanej na kryptowalutach. <strong>Maj\u0105 te\u017c na celu promowanie wydobycia Bitcoin ze \u017ar\u00f3de\u0142 odnawialnych.<\/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=\"kryptowaluty-zanieczyszczenie-energia-odnawialna\" 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>Obraz Alexas_Fotos z Pixabay<\/figcaption><\/figure><\/div>\n\n\n\n<p>Je\u015bli chodzi o e-\u015bmieci powodowane przez przestarza\u0142e uk\u0142ady ASIC, nadal jest to problem, kt\u00f3ry wymaga wi\u0119kszej uwagi. Niekt\u00f3rzy sugerowali ich ponowne wykorzystanie w projektach takich jak <a href=\"https:\/\/foldingathome.org\/\" target=\"_blank\" rel=\"noreferrer noopener\">Sk\u0142adanie@dom<\/a> przez Stanforda. Celem jest dostarczenie mocy obliczeniowej do ich system\u00f3w, aby symulowa\u0107 dynamik\u0119 bia\u0142ek, a tym samym opracowa\u0107 nowe terapie dla r\u00f3\u017cnych chor\u00f3b. W tej chwili koncentruj\u0105 si\u0119 na COVID-19.<\/p>\n\n\n\n<p>Trudno powiedzie\u0107, co przyniesie przysz\u0142o\u015b\u0107. Ale kryptowaluty si\u0119 przygotowuj\u0105, w tym cz\u0119\u015b\u0107 dotycz\u0105ca zanieczyszcze\u0144.<\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p><em>Chcesz zobaczy\u0107 t\u0119 histori\u0119 w filmie? Mamy ci\u0119!<\/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=\"Czy Bitcoin jest z\u0142y dla \u015brodowiska?\" 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>Chcesz handlowa\u0107 Bitcoin i innymi tokenami? Mo\u017cesz to zrobi\u0107<\/em>\u00a0<em>bezpiecznie\u00a0<a href=\"https:\/\/www.alfa.cash\/buy\/bitcoin\" target=\"_blank\" rel=\"noreferrer noopener\">na Alfacash<\/a>! I nie zapominaj, \u017ce rozmawiamy o tym i wielu innych rzeczach w naszych mediach spo\u0142eczno\u015bciowych.<\/em><\/p>\n\n\n\n<p class=\"has-text-align-center\"><a href=\"https:\/\/twitter.com\/alfacash_crypto\" target=\"_blank\" rel=\"noreferrer noopener\">\u015awiergot<\/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>Kryptowaluty nie wypluwaj\u0105 dok\u0142adnie czarnego dymu. Czy wi\u0119c kryptowaluty naprawd\u0119 powoduj\u0105 zanieczyszczenie? W jaki spos\u00f3b? Teraz czas to odkry\u0107!<\/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\/pl\/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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