 
<translate> Tambayata: Ee / a'a, shin abin da ke gaba gaskiya ne da za a iya tabbatarwa? "John Kerry ya musanta cewa sauyin yanayi ya samo asali ne daga ayyukan dan adam". Da fatan za a yi tunani a hankali: <eng> My question: Yes / no, is the following a verifiable fact?
"John Kerry denies climate change is caused by human factors."
Please think gradually: 