Water is seen on part of the glacial ice sheet that covers about 80 percent of Greenland. As the sea levels around the globe rise, researchers affiliated with the National Science Foundation and other organizations are studying the phenomena of the melting glaciers and their long-term ramifications.
An aerial photo taken in August shows the Costa Concordia as it lies on its side next to Giglio Island. The liner capsized off the Italian coast in January 2012, killing at least 30 people. Workers raised the ship in September in the largest and most expensive maritime salvage operation in history.
A truckload of stranded commuters crosses a flooded street in Manila on Aug. 19. Torrential rains brought the Philippine capital to a standstill, submerging some areas in waist-deep floodwaters and making streets impassable to vehicles.