A Traditional Eskimo Whaling Crew Races for shore near Barrow, Alaska, while their comrades drift out to sea: ice that should be solidly anchored at this time of year is giving way. Elsewhere, a team of scientists with frosty beards traverses the breadth of Alaska, measuring the thinning snow every ten kilometers in an effort to understand albedo, the heat-deflecting property that helps regulate the planet's temperature. Climate change isn't an abstraction...

"Longtime residents of the sonoran desert, the Tohono O'odham people have spent centuries living off the land - a land that most modern citizens of southern Arizona consider totally inhospitable. Ethnobotanist Gary Nabhan has lived with the Tohono O'odham, long known as the Papagos, observing the delicate balance between these people and their environment. Bringing O'odham voices to the page at every turn, he writes elegantly of how they husband scant...