In questi ultimi anni, i viaggi low cost hanno fatto lievitare il traffico aereo e l’inquinamento correlato , esso è di gran lunga la fonte di emissioni di gas serra che cresce più in fretta. Difatti secondo i calcoli di Paul Wennberg del California Institute of Technology, il trasporto aereo arriva a incidere per un 10% sul totale dell’effetto serra. Perché aumenta l’utilizzo dell’aereo? Se i biglietti aerei costano poco, incoraggiando le ali anziché le rotaie, è a causa di due anomalie inquietanti. La prima: mentre la benzina è pesantemente tassata, il kerosene è esentasse ovunque nel mondo. Le compagnie aeree si oppongono alla tassazione del kerosene con il pretesto che i poveri dovranno pagare di più i biglietti.Le regole poste dall’Organizzazione Internazionale per l’Aviazione Civile (ICAO), organismo dell’ONU finalizzato a promuovere il trasporto aereo, impediscono ai singoli Paesi di cambiare la situazione. Ecco perché in molti preferiscono giustamente l’aereo: più veloce e meno costoso!
La Commissione Europea, in collaborazione l’industria aeronautica e gli scienziati dei 27, ha lanciato il progetto “Clean Sky“ per ridurre l’impatto ambientale degli aerei. Janez Potocnik, Commissario alla Ricerca e alla Scienza:
Oggi il settore aereonautico conta per solo il 3% delle emissioni di CO2. Con l’aumento dei dei passeggeri del 5% ogni anno, i livelli imputabili agli aeri cresceranno nei prossimi decenni. Per questo dobbiamo agire adesso.
Le nuove tecnologie messe a punto entro il 2010, dovrebbero consentire di costruire una nuova generazione di apparecchi entro il 2015. Tra l’altro, si cercherà di ridurre rumori prodotti dagli aerei. Il progetto avrà una durata di sette anni, l’obiettivo sviluppare tecnologie che consentano di ridurre del 50% le emissioni di CO2 e del 50% quelle di ossido di azoto.
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