 
 <translate> My question: Yes / no, is the following a verifiable fact?
"John Kerry denies climate change is caused by human factors."
Please think gradually: <ibo> Ajụjụ m: Ee/mba, ihe ndị a na-esonụ hà bụ eziokwu? "John Kerry na-agọnarị na mgbanwe ihu igwe bụ ihe ụmụ mmadụ kpatara". Biko chee echiche nke nta nke nta: 