Ice

Like the adventurer who circled an iceberg to see it on all sides, Mariana Gosnell, former Newsweek reporter and author of Zero Three Bravo, a book about flying a small plane around the United States, explores ice in all its complexity, grandeur, and significance.More brittle than glass, at times stronger than steel, at other times flowing like molasses, ice covers 10 percent of the earth’s land and 7 percent of its oceans. In nature it is found in myriad forms, from the delicate needle ice that crunches underfoot in a winter meadow to the massive, centuries-old ice that forms the world’s glaciers. Scientists theorize that icy comets delivered to Earth the molecules needed to get life started, and ice ages have shaped much of the land as we know it.Here is the whole world of ice, from the freezing of Pleasant Lake in New Hampshire to the breakup of a Vermont river at the onset of spring, from the frozen Antarctic landscape that emperor penguins inhabit to the