Canadian Ranger Pitseolak Alainga, right, speaks with collea

CANADA - AUGUST 13: Canadian Ranger Pitseolak Alainga, right, speaks with colleagues before preparing to deliver fuel and other supplies to Canadian troops near Iqaluit, Nunavut, Canada, on Aug. 15, 2007. While comfortable Caribbean cruises still attract a steady crowd, Arctic eco-tourism, its rougher, less glamorous cousin, is growing as awareness spreads of both the region's beauty and fragility. The Lyubov Orlova is one of its flagships and reflects that down-to-earth ethos. (Photo by Hugo Miller/Bloomberg via Getty Images)