Search Results for Tag: gravity
North pole changes places
Climate change has many impacts on the planet, and researchers recently discovered another striking one: North Pole is moving. It’s not the ice masses in the Arctic, but acually the Northern pole of the earth’s magnetic field.
With help of satellite measurements, scientists figured out that the pole is shifting about 20 centimeters per year towards Greenland. Position of the magnetic field’s poles is determined by mass distribution around the planet. This mass distribution changes due to climate change: Accelerated melting of the poles account for 90 per cent of the movement, the study concludes.
You wonder about the remaining 10 per cent? Well, you might not have known yet (so did we) that the pole is constantly moving as earth’s mass distribution changes anyway seasonally/continuously by snow- or rainfall or continental drift. The movement due to melting ice sheets adds up on this trend. For scientists, this is more than just a “nice-to-know”-fact: the satellite measurements can help climate researchers to tell, where ice is lost and in consequence provide more detail to predict climate change impacts.
DateMay 20, 2013