Resultados para "An den Winter" en Ciencias de la Tierra

Climate change has been a perplexing problem for years. Casey's research into the Sun's activity, which began almost a decade ago, resulted in discovery of a solar cycle that is now reversing from its global warming phase to that of dangerous global cooling for the next 30 years or more. This new cold climate will dramatically impact the world's citizens.

Sixty-six million years ago an asteroid as large as Mt. Everest hit what is now the Yucatan Peninsula at a speed ten times faster than the fastest rifle bullet. Debris from the impact blew into space, re-entered the atmosphere as a swarm of shooting stars that burned the global forests and grasslands, leaving behind a thin global layer containing rock from the asteroid and from Mexico, and smoke from the fires. This layer marks one of the greatest extinctions in Earth history including not just dinosaurs, but also fish, plankton, ammonites, and plants making up about 75% of the known species.

In Dragons in the Snow, Power delves into the research and science behind avalanche forecasting and rescue, weaving in the art of backcountry skiing as well as dramatic tales of avalanche accidents, rescues, and recoveries. And he paints compelling portraits of the men and women who have made the study of avalanches their life's work. The tales told by these avalanche forecasters, as well as the stories of the backcountry riders who may "wake the dragon" make for not just a compelling listen, but also a powerful tool for raising avalanche awareness.

One man’s “curiously thrilling joyride” of travelogue, history, and climatology, across a planet on the brink of cataclysmic transformation. As the planet warms, winter is shrinking. In the last fifty years, the Northern Hemisphere lost a million square miles of spring snowpack and in the...