Sandra Postel takes readers around the world to explore water projects that work with, rather than against, nature's rhythms. In New Mexico, forest rehabilitation is safeguarding drinking water; along the Mississippi River, farmers are planting cover crops to reduce polluted runoff; and in China, "sponge cities" are capturing rainwater to curb urban flooding. Efforts like these will be essential as climate change disrupts both weather patterns and...

"At Cape Three Points on the beautiful Ghanaian coast, a canoe washes up at an oil rig site. The two bodies in the canoe--who turn out to be a prominent, wealthy, middle-aged married couple--have obviously been murdered; the way Mr. Smith-Aidoo has been gruesomely decapitated suggests the killer was trying to send a specific message--but what, and to whom, is a mystery. The Smith-Aidoos, pillars in their community, are mourned by everyone, but especially...