In his work as a guide, kayaker, and photographer, Jed has watched those changes taking place before his eyes in a very real way. The glaciers in NW Yunnan, China, grow visibly smaller year by year. Beautiful rivers supporting bio-diversity and offering amazing recreational opportunities are being dammed in countries ranging from Canada to China. Because cultures are a product of the environment in which they develop, the environmental changes lead to cultural changes, too. The last of the tattoo-faced Dulong women will soon join their ancestors in the spirit realm. And the fishermen who once plied the Yangtze will soon have a reservoir instead of a river.