Environmental conditions 
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"Greenland: remote, mysterious, ice-covered rock, population 56,000, in the middle of the North Atlantic. Why do we care so much about it? Because locked within the the vast and frozen "white desert"--the nickname early explorers gave it--that covers eighty percent of the land are some of the most profound secrets of our planet--clues about where we've been, and where we might be headed. And now, with the ice sheet melting at an unprecedented rate,...
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"The Colorado River is a crucial resource for a surprisingly large part of the United States, and every gallon that flows down it is owned or claimed by someone. David Owen traces all that water from the Colorado's headwaters to its parched terminus, once a verdant wetland but now a million-acre desert. He takes readers on an adventure downriver, along a labyrinth of waterways, reservoirs, power plants, farms, fracking sites, ghost towns, and RV parks,...