Dr. Timothy Pyakalyia says farmers in his tropical homeland, Papua New Guinea, have been enjoying fruit harvests at elevations where fruit never grew before.

• 蒂莫西?皮亚卡里亚博士说,在他的家乡-处于热带的巴布亚新几内亚，农民们正享受着丰收带来的喜悦：原本长不了水果的高原上现在水果丰收了。