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Prosegue l'ondata di calore in tutta Europa. A parte un breve intermezzo temporalesco in arrivo sulle Alpi, il caldo non darà tregua. Già in queste ore a Lione, in Francia, la colonnina di mercurio ha raggiunto i 38 gradi centigradi. Anche in Germania si sono toccati picchi di 38 gradi. E il caldo non risparmia neppure la Polonia, dove si sono superati i 30 gradi.
Il caldo anomalo fa soffrire non solo gli uomini, ma anche gli animali. Le api selvatiche, ad esempio, si svegliano troppo presto dal letargo: per ogni grado in più, il loro risveglio si anticipa di circa una settimana. Questo pone in serio pericolo la sincronizzazione con la fioritura delle piante: questo significa meno cibo da consumare per loro e meno energia per impollinare le colture. Lo afferma uno studio pubblicato sulla rivista "Ecology and Evolution" e guidato dall'Università di Reading (Gran Bretagna, che ha esaminato 88 specie diverse nell'arco di quarant'anni.
Notiziario 10.00 del 10.07.2023
RSI Info 10.07.2023, 10:18
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