Getting Warmer...Climate change is transforming many of the world's most striking tourist destinations. If you want to see them, better go soon.
Gallery: 10 Endangered SitesCanadian polar bears, the Tower of London, the Outer Banks: Global warming is affecting them all. We zero in on 10 danger zones.
Video: Viking RuinsThe Viking ruins scattered over southern Greenland embrace both religion and mystery.
Q&A TranscriptTalk travel and go further in-depth on the issues facing trip destinations worldwide with "The Flight Crew."
ResourcesFind friends eco-tourism and the Earth.
TipsPractice ways to lighten your footprint.
Special Report: Green TravelWith lodgings the world over suddenly proclaiming themselves as eco-friendly, determining what makes an authentic green hotel can be difficult.
PHOTOS: Jim Sebastian; Joseph Napaaqtuq Sage - AP; Gerry Broome - AP; Patrick S. Bryan; Scott Barbour - Getty Images; Lutz Bongarts - Getty Images; World Monuments Fund via Bloomberg News; Caroline von Tuempling; Mark Baker - Reuters; Ove Hoegh-Guldberg - AP; CARTOGRAPHY: Nathaniel Vaughn Kelso - The Washington Post; PRINT PRODUCER: Margaret Roth - The Washington Post; WEB PRODUCER: Christian Pelusi - washingtonpost.com; INTERACTIVE: washingtonpost.com
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