Polar bears are dying. As global warming accelerates, the sea ice they depend on for survival is literally melting away. Bears are starving and drowning as they have to swim farther and farther to reach solid ice. Some are even turning to cannibalism in a desperate search for food. Those trapped on land hundreds of miles from the nearest ice often wander near villages in search of food and are shot. As if that weren’t enough, oil and gas drilling is destroying and polluting their fast-dwindling Arctic habitat. A third of all polar bears — including all bears in Alaska — will be extinct by 2050 if current trends continue. The rest of the species will be gone by the end of the century. But it’s not too late to save the polar bear if we join together and take immediate action. The science is clear. We know what needs to be done — we just need to build the political support to do it.