Se l’accordo di Parigi finanziasse l’adattamento ai cambiamenti climatici dei paesi ricchi, il “fondo verde” finirebbe negli Stati Uniti, nei guai dalla Florida all’Alaska.<\/p>\n
Sui Scientific Reports<\/em> di Nature, quindi in open access<\/a><\/strong>, David Schulte et al. dello U.S. Army Corps of Engineers esaminano<\/p>\n \u00a0the evolution (1850-2013) of the last inhabited offshore island in Virginia waters of Chesapeake Bay USA, the Tangier Islands. Three Sea Level Rise (SLR) scenarios, a low, mid, and high, were considered. Since 1850, 66.75% of the islands landmass has been lost. Under the mid-range SLR scenario, much of the remaining landmass is expected to be lost in the next 50 years and the Town \u00a0will likely need to be abandoned. The high SLR scenario will accelerate the land loss and subsidence, such that the Town may need to be abandoned in as few as 25 years. We propose a conceptual plan that would significantly extend the lifespan of the islands and Town<\/em>.<\/p>\n “Town” \u00e8 il <\/span>villaggio di Tangier,<\/a><\/strong> 720 abitanti, sull’isola omonima, abitato dall’arrivo dei primi europei nel ‘600. Il “piano concettuale” consiste nell’erigere dune di sabbia perfrenare l’erosione:<\/span><\/p>\n These ridges, restored to a height of 2\u20133m above the current 2013 spring high tide, could be planted with loblolly pines (<\/em>Pinus taeda). Pines and other woody vegetation will supply organic material to the ridges and the rest of the island, help maintain elevation, and serve as seabird nesting habitat. … The approximate costs of initial construction of the breakwaters, beach, dunes and ridges would be approximately 20\u201330 million USD. If no action is taken, significant wildlife habitat will be lost, as well as the culturally-unique Town of Tangier, the last offshore fishing community in Virginia waters of Chesapeake Bay.<\/em><\/p>\n Ai $20-30 milioni credo pochissimo, comunque bisogna far presto:<\/p>\n The Tangier Islands and the Town are running out of time, and if no action is taken, the citizens of Tangier may become among the first climate change refugees in the continental USA.<\/em><\/p>\n Fra i primi perch\u00e9 dal 2007 vanno ricollocati gli abitanti di 31 villagi<\/a>\u00a0<\/strong>dell‘<\/strong>Alaska, su 186 che stanno sprofondando nel permafrost. \u00a0Servirebbero $130 milioni solo per quelli di Netwok<\/a><\/strong> e siccome l’Alaska \u00e8 uno stato dove i cittadini non pagano tasse, i soldi non ci sono:<\/p>\n Funds are even tighter now that Alaska is facing a $3.7 billion\u00a0budget deficit<\/a>\u00a0because of the declining price of oil. The state gets almost 90 percent of its revenues from oil taxes and royalties.<\/em><\/p>\n ***<\/p>\n Su Nature Climate Science<\/em>, Kate Marvel<\/a><\/strong>, Gavin Schmidt et al. stimano l’effetto a volte locale a volte no sulla temperatura globale di varie forzanti naturali e non – uso del territorio, aerosol, gas serra, ozono, attivit\u00e0 solare, eruzioni vulcaniche. Paragonano l’effetto di ciascuna – ottenuto dal modello – con le osservazioni fatte durante il secolo scorso, e\u00a0scrivono<\/a> <\/strong><\/p>\n Here we show that climate sensitivity estimates derived from recent observations must account for the efficacy of each forcing active during the historical period. When we use single-forcing experiments to estimate these efficacies and calculate climate sensitivity from the observed twentieth-century warming, our estimates of both TCR <\/em>(transient climate response<\/a>, ndr) and ECS <\/em>(equilibrium climate sensitivity<\/a>) are revised upwards compared to previous studies, improving the consistency with independent constraints.<\/em><\/p>\n Il resto a pagamento, ma il risultato \u00e8 riassunto in questa figura<\/a><\/strong>: la sensibilit\u00e0 \u00e8 +2,5 – 4 \u00b0C per un raddoppio della CO2, “best estimate 2,9 \u00b0C”.<\/p>\n *<\/p>\n La Japan Meteorological Association ha calcolato<\/a><\/strong> l’anomalia della temperatura globale per il mese di novembre:<\/p>\n +0.54\u00b0C above the 1981-2010 average (+0.88\u00b0C above the 20th century average), and was the warmest since 1891.<\/em><\/p>\n *<\/p>\n Sull’accordo di Parigi, rif. anche l’opinione di Stefano Nespor<\/a><\/strong> – autore di un libro appassionante sul diritto internazionale in tema, Il governo dell’ambiente<\/em> – e altri nello “speciale clima” di Scienza in rete.<\/p>\n *<\/p>\n Un avvocato di Big Oil & Gas Fracking sostiene<\/a><\/strong>\u00a0in tribunale che se il suo cliente dovr\u00e0\u00a0pagare $75 mila di danni per aver causato un terremoto che ha lesionato una casa in Oklahoma, nello stato partir\u00e0 una Grande Depressione che in confronto quella raccontata da Faulkner in Furore<\/a><\/strong><\/em> era da ridere.<\/p>\n *<\/p>\n Schadenfreude del giorno<\/strong><\/p>\n I bigoilisti portati a Parigi dallo Heartland e dalla CFACT frignano perch\u00e9 la COP 21 li ha ignorati, dice la Reuters<\/a>.<\/strong><\/p>\n Exxon Mobil assume <\/a><\/strong>un ricercatore in scienze del clima.<\/p>\n","protected":false},"excerpt":{"rendered":" Se l’accordo di Parigi finanziasse l’adattamento ai cambiamenti climatici dei paesi ricchi, il “fondo verde” finirebbe negli Stati Uniti, nei guai dalla Florida all’Alaska. Sui Scientific Reports di Nature, quindi in open access, David Schulte et al. dello U.S. Army Corps of Engineers esaminano \u00a0the evolution (1850-2013) of the last inhabited offshore island in Virginia… Continua a leggere E il livello del mare sale, sale…<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10],"tags":[1291,1439,2504,2731,2749,3533,4563,6248,7214],"class_list":["post-29038","post","type-post","status-publish","format-standard","hentry","category-clima","tag-chesapeake-bay","tag-climate-deniers","tag-exxon-mobil","tag-forzanti","tag-fracking","tag-innalzamento-del-livello-del-mare","tag-modelli","tag-sensibilita-del-clima","tag-virginia","entry"],"_links":{"self":[{"href":"https:\/\/archivio.ocasapiens.org\/index.php\/wp-json\/wp\/v2\/posts\/29038","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/archivio.ocasapiens.org\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/archivio.ocasapiens.org\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/archivio.ocasapiens.org\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/archivio.ocasapiens.org\/index.php\/wp-json\/wp\/v2\/comments?post=29038"}],"version-history":[{"count":2,"href":"https:\/\/archivio.ocasapiens.org\/index.php\/wp-json\/wp\/v2\/posts\/29038\/revisions"}],"predecessor-version":[{"id":43868,"href":"https:\/\/archivio.ocasapiens.org\/index.php\/wp-json\/wp\/v2\/posts\/29038\/revisions\/43868"}],"wp:attachment":[{"href":"https:\/\/archivio.ocasapiens.org\/index.php\/wp-json\/wp\/v2\/media?parent=29038"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/archivio.ocasapiens.org\/index.php\/wp-json\/wp\/v2\/categories?post=29038"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/archivio.ocasapiens.org\/index.php\/wp-json\/wp\/v2\/tags?post=29038"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}