Axis wobbles and wandering poles

• Autores: Jeff Hecht
• Localización: New scientist, ISSN 0262-4079, Nº. 2918, 2013, pág. 8
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • Hecht talks about the effects of climate change. Some of the consequences of climate change are just plain strange. Days should get a teensy bit shorter as the Earth spins faster, for instance. And now humans have evidence that melting ice is tilting the planet. Earth's rotational axis wobbles because the planet is not a perfect immutable sphere. Erosion, plate tectonics and the weather move mass around the surface, causing the poles to wander. From 1982 to 2005, this drift averaged about 6 centimeters per year, pulling the North Pole south towards Labrador.