Autori: Salvati, Luca, Perini, Luigi, Forino, Giuseppe
Titolo: Diffusione urbana e cambiamento climatico: percorsi di (in)sostenibilità a livello locale?
Periodico: Scienze del Territorio (Online)
Anno: 2015 - Volume: 3 - Pagina iniziale: 59 - Pagina finale: 67

Among human settlements, cities are the most vulnerable to climate impacts. In urban areas, climate change is exacerbated by sharper thermal regimes and heavier rainfall compared to suburban or rural areas. This is due to the influence urban forms and structures have on local climate, aggravating the heat waves and modifying the rainfall patterns. in particular, the settlement models of the ‘sprawling’ city change into ‘urban’ some originally rural areas, with a high degree of housing and infrastructure fragmentation . This implies increasing operation costs related to energy consumption, soil sealing, arising transport demand and pollution. This can increase the urban vul-nerability to the impacts of climate change. The paper aims at exploring some of the potential ef-fects urban growth exerts on thermal balance and climate at the urban scale. Initially, the paper re-ports a few basic concepts for the study of urban climate. Then, it describes the potential effects of the sprawling urban form on temperature rise and extreme rainfall along the urban-rural gradient. Finally, it discusses the need to use techniques of weather and climate analysis specific for urban climate and to develop strategies of urban adaptation to climate change.




SICI: 2284-242X(2015)3<59:DUECCP>2.0.ZU;2-P
Testo completo: http://www.fupress.net/index.php/SdT/article/download/16250/15240

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