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Le emissioni di gas a effetto serra nel mondo hanno battuto un primato nel 2015: per la prima volta, sono stati registrati livelli di 400 parti per milione in media per tutto l’anno. Lo ha indicato lunedì a Ginevra, l’Organizzazione meteorologica mondiale (OMM). La situazione non sembra migliorare quest’anno, dove si registra un continuo aumento.
Gli esperti guardano con attenzione l’influenza che ha El Niño su questo fenomeno: le sue correnti calde hanno contribuito a creare siccità nelle regioni tropicali. La capacità di assorbire CO2 da parte di foreste è diminuita. "Se non riusciamo a lottare contro l’anidride carbonica che si sprigiona nell’atmosfera", ha spiegato il segretario generale dell’OMM, "non possiamo lottare contro i cambiamenti climatici".
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