carbon footprint: il clima
TRANSCRIPT
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Clima (Carbon footprint)
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OUTLINE
• Come definiamo il clima?
• Fattori determinanti
• Il clima è un sistema complesso
• Storia del clima e antropocene
• Intergovernal Panel Climate Change (IPCC)
• Rischi climatici
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COME DEFINIAMO IL CLIMA?
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Livelli di insolazione
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Livelli di insolazione Temperature
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Livelli di insolazione Temperature Biomi
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Fasce Climatiche
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Fattori
determinanti
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• Moti millenari terrestri
• Moti dell’atmosfera
• Correnti oceaniche
• Composizione dell’atmosfera: effetto serra
• Riflessione da parte della terra: effetto albedo
Fattori determinanti i cambiamenti climatici
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Moti millenari
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Il caso Fukushima
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Correnti oceaniche
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Composizione dell’atmosfera: effetto serra
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Composizione dell’atmosfera: effetto serra
• Vulcanismo• Allevamenti• Emissioni da microrganismi marini• Emissioni umane • Deforestazione
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Riflessione da parte della terra: effetto albedo
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Riflessione da parte della terra: effetto albedo
• Meteroriti• Areosol Immessi in
atmosfera• Vulcanismo• Aumento calotte polari• Aumento Ghiacciai
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Equilibrio atmosfera oceano
• Direzionalità dei venti
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Equilibrio atmosfera oceano
• Evaporazione (1 metro/anno)
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Equilibrio atmosfera oceano
• Assorbimento CO2 (93% - 106 ton/ora)
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Sistemi complessi
Effetto farfalla
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Sistemi complessi
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Sistemi complessi
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Storia del clima e antropocene
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Storia del clima e antropocene
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Storia del clima e antropocene
12000-8000 B.C. Neolitico Agricoltura e allevamento
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Storia del clima e antropocene
1769-Macchina a Vapore1820-Sviluppo delle ferrovie ampio uso di Carbone
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Storia del clima e antropocene
1800 circa Jean Baptiste Joseph Fourier
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Storia del clima e antropocene
1859 Raffinazione del petrolio e motore a combustione interna1920 Fordismo – Catena di montaggio
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Storia del clima e antropocene
Anni ‘50 utilizzo massiccio di energia (primo consumismo)• Consumi domestici per società di massa• Industrializzazione• Esplosione demografica• Disboscamento massiccio
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IPCC(Intergovernamental Panel Climate Change)
1988 - ONU
• Working Group1 - The Physical Science Basis
• Working Group2 - C.C., Impacts Adaptatios Vulnerability
• Working Group3 - Migration
• Task force - GHG inventories
Club of Rome
• 1968 – Gruppo di analisi dei limiti del progresso
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IPCC(Intergovernamental Panel Climate Change)
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IPCC(Intergovernamental Panel Climate Change)
Difficoltà nelle Previsioni
• Il clima è un sistema Caotico (equilibrio generale atmosfera oceani)• Previsioni incremento demografico• Previsioni Consumi Energetici (incremento fonti alternative)• Previsioni equilibri politici e guerre• Previsioni scelte ed andamenti economici• Difficoltà nella valutazione effettiva dei gas prodotti
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Rischi climatici
• Uragani
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Rischi climatici
• Innalzamento degli Oceani
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Rischi climatici
• Migrazioni di massa
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Rischi climatici
• Siccità, agricoltura e Malnutrizione aumento dei prezzi
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Rischi climatici
• Diffusione degli insetti portatori di malattie
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Ivar Giaever N.P. 1973
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Ivar Giaever N.P. 1973
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Ivar Giaever N.P. 1973
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Ivar Giaever N.P. 1973
Ilam Samson’s problem