MOBY DICK
Sabato 10 ottobre 2015 alle 10:00
Un nuovo allarme sullo stato di salute dei mari arriva dal recente Living blue Planet Report, lo studio del WWF e della Zoological Society di Londra, che evidenzia il calo a livello globale della popolazione marina. Nell’arco di una quarantina di anni, dal 1970 al 2012, le popolazioni mondiali di pesci e di mammiferi, uccelli e rettili marini, si sono dimezzate a causa degli eccessi di pesca, della distruzione degli ecosistemi marini e del cambiamento climatico. Non sono risparmiate anche le specie terrestri. Diversi studi evidenziano negli ultimi decenni la sparizione della metà delle specie selvatiche: in testa alla lista rossa delle specie minacciate in Svizzera, anfibi, rettili. A rischio anche il 40% delle specie nidificanti secondo un recente rapporto della stazione ornitologica di Sempach. Quali le cause? Siamo ancora in tempo per invertire la rotta? Quali le conseguenze? Cosa può fare il cittadino concretamente? Ne discutiamo con i nostri ospiti in studio, i biologi Beatrice Jann, studiosa di cetacei e responsabile della pagina “La fattoria degli animali” del Corriere del Ticino, e Andreas Moser, caporedattore della trasmissione Netz Natur della Televisione svizzera di lingua tedesca, e Maurizio Pallante, poeta e saggista fondatore del movimento per la decrescita felice.
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