43+ Pope Francis Quotes On Climate Change. It is the poorest who suffer the worst . We have sinned against the earth, pope francis said in a forceful earth. "the climate is a common good, belonging to all and meant for all." "we need to strengthen the conviction that we are one single human family.". The integrity of the earth by causing changes in its climate, . Here are five key quotes from the encyclical that will shake up the global climate debate. China and cop26 on climate change in glasgow, united kingdom, . A quote from pope francis: In his written statement, the pope affirms his stance that climate change is the result of human behavior, a fact which nasa supported with . Discover pope francis quotes about climate change. "we must not forget the grave social consequences of climate change.