Resultados para "Salt" en Ciencias de la Tierra

More than a hundred salt lakes dot Earth's surface, most of them hidden away in remote desert valleys. But today nearly all of them are at risk of drying up. Their death is a harbinger of rising sea levels, life-threatening dust storms, and environmental collapse. Writer and geographer Caroline Tracey didn't know this when she began crossing paths with salt lakes during her early twenties. From the Great Salt Lake to the Aral Sea, across the American West and around the world, the unusual beauty of these shimmering, uncanny bodies of water captured her imagination.

The author of Cod and The Basque History of the World takes an extraordinary look at an ordinary substance — salt, the only rock humans eat — and how it has shaped civilization from the very beginning. Mark Kurlansky has produced a kaleidoscope of history, a multi-layered masterpiece that blends economic, scientific, political, religious, and culinary records into a rich and memorable tale.

More than half a billion years ago, our world was completely covered by glaciers, a "Snowball Earth" that persisted for millions of years. Incredibly, this unimaginable cold led to the remarkable diversification of life on earth known as the Cambrian explosion. With a geologist's eye and a knack for storytelling, Graham Shields explores when and how such inhospitable conditions enabled animals to evolve, radiate, and diversify into our earliest ancestors.

A journey around the United States in search of the truth about the threat of earthquakes leads to spine-tingling discoveries, unnerving experts, and ultimately the kind of preparations that will actually help guide us through disasters. It’s a road trip full of surprises. Earthquakes. You...