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\nEl canvi clim\u00e0tic \u00e9s un dels reptes m\u00e9s urgents als quals ens enfrontem. El canvi clim\u00e0tic no \u00e9s cap hip\u00f2tesi, \u00e9s una realitat i est\u00e0 passant ara.<\/p>\n
\nEl canvi clim\u00e0tic \u00e9s un dels reptes m\u00e9s urgents als quals ens enfrontem. El canvi clim\u00e0tic no \u00e9s cap hip\u00f2tesi, \u00e9s una realitat i est\u00e0 passant ara.<\/p>\n
Com descriu Yuval Noah Harari al seu llibre 21 lli\u00e7ons per al segle XXI:<\/p>\n
Hi ha consens cient\u00edfic sobre el fet que les activitats humanes, en particular l\u2019emissi\u00f3 de gasos que produeixen l\u2019efecte hivernacle com ara el di\u00f2xid de carboni, provoquen el canvi del clima de la Terra a un ritme aterridor. Ning\u00fa sap exactament quant di\u00f2xid de carboni podem continuar bombejant a l\u2019atmosfera sense provocar un cataclisme irreversible. Per\u00f2 les millors indicacions cient\u00edfiques indiquen que, tret que tallem dr\u00e0sticament l\u2019emissi\u00f3 de gasos d\u2019efecte hivernacle en els pr\u00f2xims vint anys, les temperatures globals mitjanes s\u2019incrementaran m\u00e9s de 2\u00baC, cosa que tindr\u00e0 com a resultat l\u2019expansi\u00f3 dels deserts, la desaparici\u00f3 dels casquets polars, la pujada del nivell dels oceans i fen\u00f2mens meteorol\u00f2gics extrems molt m\u00e9s freq\u00fcents, com ara huracans i tifons. Aquests canvis, per la seva banda, trastornaran la producci\u00f3 agr\u00edcola, inundaran ciutats, faran gran part del m\u00f3n inhabitable, i enviaran centenars de milions de refugiats a la cerca de noves llars.<\/p>\n
A m\u00e9s, ens acostem r\u00e0pidament a diversos punts d\u2019inflexi\u00f3, m\u00e9s enll\u00e0 dels quals fins i tot una caiguda dram\u00e0tica de les emissions de gasos d\u2019efecte hivernacle no ser\u00e0 suficient per revertir la tend\u00e8ncia i evitar una trag\u00e8dia a escala mundial. Per exemple, a mesura que l\u2019escalfament global fon les plaques de gel polar, menys llum del sol es reflecteix des del planeta Terra cap a l\u2019espai exterior. Aix\u00f2 vol dir que el planeta absorbeix m\u00e9s calor, les temperatures creixen encara m\u00e9s, i el gel es fon encara m\u00e9s de pressa. Un cop aquest bucle que es realimenta ultrapassi un llindar cr\u00edtic, adquirir\u00e0 un impuls irresistible, i tot el gel de les regions polars es fondr\u00e0 encara que els essers humans deixin de cremar carb\u00f3, petroli i gas. Per tant, no n\u2019hi ha prou amb recon\u00e8ixer el perill al qual ens enfrontem. \u00c9s cr\u00edtic que hi fem alguna cosa ara mateix.<\/p><\/blockquote>\n
Trobar una soluci\u00f3 al canvi clim\u00e0tic no \u00e9s senzill i els motius que el provoquen estan \u00edntimament lligats al nostre desenvolupament.<\/p>\n
Vivim en una societat que fonamenta el seu progr\u00e9s en l\u2019energia dels combustibles f\u00f2ssils, com el petroli o el gas. Per\u00f2 aquestes fonts energ\u00e8tiques generen grans quantitats de gasos d\u2019efecte hivernacle i s\u00f3n finites, tard o d\u2019hora s\u2019acabaran. Si no canviem el nostre model energ\u00e8tic, el futur que espera a la humanitat \u00e9s molt incert. I no ens queda gaire temps. L\u2019escepticisme en aquest assumpte \u00e9s un luxe que no ens podem permetre. Cada segon que perdem sense actuar ens apropa una mica m\u00e9s a l\u2019abisme.<\/p>\n
Per\u00f2 el repte \u00e9s maj\u00fascul. Tot i els esfor\u00e7os dels \u00faltims anys, l\u2019any 2019 les energies renovables van cobrir nom\u00e9s un 11% de l\u2019energia final consumida a Espanya. Queda molta feina per fer i tenim poc temps per fer-la. L\u2019anomenada descarbonitzaci\u00f3 de l\u2019economia requerir\u00e0 grans esfor\u00e7os i una voluntat enorme.<\/p>\n
Sembla que la voluntat pol\u00edtica \u00e9s ferma en aquest sentit i la lluita contra el canvi clim\u00e0tic ja \u00e9s a la primera p\u00e0gina de les agendes de tots els governs i corporacions mundials. Per\u00f2 amb aix\u00f2 no n\u2019hi haur\u00e0 prou, la urg\u00e8ncia \u00e9s m\u00e0xima. Caldr\u00e0 la implicaci\u00f3 de tothom: societat civil, empreses, col\u00b7lectius, estem tots interpel\u00b7lats a actuar en la mesura de les nostres possibilitats.<\/p>\n
L\u2019autoconsum segur que forma part de la soluci\u00f3<\/h3>\n
No sabem si les energies renovables seran la soluci\u00f3 a tot el problema, per\u00f2 el que \u00e9s segur \u00e9s que seran part de la soluci\u00f3. No hi ha gaires alternatives m\u00e9s. Sabem que el model actual no \u00e9s sostenible i ens aboca a un futur incert. I, ara per ara, les \u00faniques fonts energ\u00e8tiques que poden preservar el nostre progr\u00e9s s\u00f3n les energies renovables.<\/p>\n
L\u2019autoconsum solar \u00e9s sens dubte una de les aplicacions m\u00e9s \u00f2ptimes de les energies renovables.<\/p>\n
Perqu\u00e8 una aplicaci\u00f3 que utilitza superf\u00edcies lliures com les cobertes dels edificis per generar energia al mateix lloc on \u00e9s consumida, que en millora l\u2019a\u00efllament t\u00e8rmic i en redueix el consum en climatitzaci\u00f3, que n\u2019incrementa la independ\u00e8ncia energ\u00e8tica, que ajuda a conscienciar sobre el propi consum energ\u00e8tic i en facilita la seva optimitzaci\u00f3, que fomenta l\u2019estalvi, que \u00e9s renovable i que a sobre \u00e9s rendible… segur que \u00e9s part de la soluci\u00f3.<\/p>\n
Encara hi som a temps, per\u00f2 cada minut compta. Aquest \u00e9s un problema que ens afecta a tots i ens cal la implicaci\u00f3 de tothom; \u00e9s massa el que ens hi juguem i el risc de no fer res \u00e9s massa elevat. Des del teu \u00e0mbit decisi\u00f3, si pots, impulsa el canvi!<\/p>\n","protected":false},"excerpt":{"rendered":"
El canvi clim\u00e0tic \u00e9s un dels reptes m\u00e9s urgents als quals ens enfrontem. El canvi clim\u00e0tic no \u00e9s cap hip\u00f2tesi, \u00e9s una realitat i est\u00e0 passant ara. Com descriu Yuval Noah Harari al seu llibre 21 lli\u00e7ons per al segle XXI: Hi ha consens cient\u00edfic sobre el fet que les activitats humanes, en particular l\u2019emissi\u00f3 […]<\/p>\n","protected":false},"author":1,"featured_media":203,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[11],"class_list":["post-200","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-divulgacio"],"acf":[],"yoast_head":"\n
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