Il Polo Nord magnetico della terra è in movimento verso la R

Il Polo Nord magnetico della terra è in movimento verso la Russia a quasi 40 miglia (64 chilometri) all'anno a causa di modifiche magnetiche nel nucleo del pianeta,secondo i risultati di una nuova ricerca.

North Magnetic Pole Is Shifting Rapidly Toward Russia
Brian Vastag
for National Geographic News
December 15, 2005
Santa better check his compass, because the North Pole is shifting—the north magnetic pole, that is, not the geographical one.
http://news.nationalgeographic.com/news/2005/12/1215_051215_north_pole.html

North Magnetic Pole Moving Due to Core Flux
Richard A. Lovett in San Francisco
for National Geographic News
December 24, 2009
Earth's north magnetic pole is racing toward Russia at almost 40 miles (64 kilometers) a year due to magnetic changes in the planet's core, new research says.
http://news.nationalgeographic.com/news/2009/12/091224-north-pole-magnetic-russia-earth-core.html