"BLACKFEET INDIAN RESERVATION, Mont. -- The mountains along the eastern edge of Glacier National Park rise from the prairie like dinosaur teeth, their silvery ridges and teardrop fields of snow forming the doorway to one of America’s most pristine places."

"The modern world has long thought of refugees in strictly political terms, victims in a world riven by competing ideologies. But as climate change continues unabated, there is a growing population of displaced men, women and children whose homes have been rendered unlivable thanks to a wide spectrum of environmental disasters."

"In the early 1990s, anglers in the Upper Columbia River reported seeing beads of liquid mercury floating in the water."

"LONDON -- The world is depleting underground water reserves faster than they can be replenished due to over-exploitation, according to scientists in Canada and the Netherlands."

"A single holdout could mean indefinite delay. The situation shows how difficult it will be to export Alberta oil sands to Asia."

"WASHINGTON — Climate change is sweeping indigenous villages into the sea in Alaska, flooding the taro fields of native Hawaiians and devastating the salmon population from which Washington state Indian tribes draw their livelihood, tribal leaders testified Thursday at a Senate hearing."

"They pray for rain these days across a drought-stricken American west. The very idea – a light shower, even an inch of rain – fills Walter Dasheno with dread. Dasheno is the governor of the Santa Clara pueblo, a Native American community living just below a canyon of the same name."