The majestic polar bear leaps across the water, landing on an ice sheet with a semi-belly flop. That’s one of the sights tourist Emma Postolec caught during an Arctic cruise on Sept. 27. Her ...

Svalbard has warmed between 5.4 and 9 degrees Fahrenheit in the past half century, thinning out the ice that is crucial to polar bear survival, according to a report commissioned by the Norwegian ...