As global temperatures inch upwards year after year, the world’s glaciers retreat. These rivers of ice and the even larger ice sheets which cover Greenland and Antarctica are melting—and the melt is speeding up. As global temperatures inch upwards year after year, the world’s glaciers retreat. These rivers of ice and the even larger ice sheets which cover Greenland and Antarctica are melting—and the melt is speeding up. Ecology Phys.org – latest science and technology news stories