The source of the Yellow River in China faces drought, glacial melting, and desertification, while Tibetans become climate refugees as their nomadic life is under threat from global warming.

• 黄河源头面临干旱，冰川融化和人为沙化，当西藏人的游牧生活受到全球变暖的危胁他们将变为气候难民。