Get Antarctica 2041: My Quest to Save the Earth's Last PDF

By Robert Swan, Gil Reavill

ISBN-10: 0307589161

ISBN-13: 9780307589163

Adventurer grew to become environmentalist Robert Swan illuminates the perils dealing with the planet come 2041—the 12 months while the overseas treaty preserving Antarctica is up for review—and the numerous steps that may be taken to prevent environmental calamity.

In 1985, while Robert Swan walked throughout Antarctica, the delicate polar atmosphere was once now not excessive in his brain. yet upon his go back, the earth’s perilous kingdom grew to become own: Robert’s ice-blue eyes have been singed a faded grey, as a result of the being uncovered to the sun’s rays passing unfiltered during the depleted ozone layer. At this second, his dedication to retaining the surroundings used to be born, and in Antarctica 2041 Swan information his trip to information, and his enterprise trust that people can opposite the damage performed to the planet so far, and safe its destiny for generations to come.

Despite the dire warnings Swan increases in Antarctica 2041—exponentially excessive greenhouse-gas degrees; emerging seas; monstrous species extinction—he says there's a lot we will be able to do to sidestep looming catastrophe. finally an upbeat name to motion, his booklet offers the data humans have to comprehend the world’s difficulty, and the instruments they should strive against it, finally displaying us all that saving Antarctica quantities to saving ourselves.

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Extra resources for Antarctica 2041: My Quest to Save the Earth's Last Wilderness

Sample text

L’immissione di solfati nella stratosfera non rappresenta di certo la miglior strategia possibile, ma nello sviluppo graduale del programma che sto descrivendo ci sarebbe molto tempo per progettare tecnologie alternative prima che i problemi dovuti ai solfati diventino troppo gravi. Potete giudicare queste prospettive come interessanti o pazzesche, ma è difficile immaginare che siano tecnologicamente impraticabili. Le apparecchiature necessarie potrebbero essere disponibili prima del 2020 e anche dopo mezzo secolo i costi immediati del programma non dovrebbero superare l’1% della somma che spendiamo oggi per lo sviluppo di sistemi di produzione di energie pulite.

Interventi globali di geoingegneria solare Come si possono realizzare interventi di geoingegneria a livello globale? Supponiamo che il risultato debba essere la riduzione della metà del tasso di riscaldamento globale, ottenuta iniziando a introdurre acido solforico nella stratosfera a partire dal 2020. Se fosse integrata con un serio impegno a eliminare le emissioni di gas serra, l’operazione – secondo me – potrebbe costituire un programma adatto a gestire i rischi dei cambiamenti climatici per gli ecosistemi e per l’uomo, in un mondo senza politica.

Le emissioni cambiano il clima quando il diossido di carbonio e altri gas si accumulano nell’atmosfera. La concentrazione di CO2 accumulato ha raggiunto le 400 parti per milione nel 2014. Se è vero che un numero tondo non ha alcun senso in natura, il fatto di superare questo limite, con una concentrazione che cresce di 2 parti per milione all’anno (e va accelerando), diventa un potente simbolo del nostro fallimento collettivo. org, ma la possibilità di arrestare il processo prima di raggiungere il valore di 500 parti per milione o di mantenere la crescita annua delle temperature globali al di sotto dell’obbiettivo dei 2 gradi centigradi appare remota.

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Antarctica 2041: My Quest to Save the Earth's Last Wilderness by Robert Swan, Gil Reavill

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