Rubuta ci gaba don wannan sakin layi - A watan Nuwamba da Disamba na 2015, Galletti ya halarci taron Majalisar Dinkin Duniya kan Canjin Yanayi
a birnin Paris, wanda aka fi sani da COP 21. Taron ya kawo yarjejeniya ta duniya kan rage sauyin yanayi, wanda rubutunsa ya wakilci yarjejeniyar wakilan bangarorin 196 da ke halartar sa.