Our planet’s magnetic north pole is moving. Since 1831, when explorers first found it in Canada’s Boothia Peninsula, it has traveled hundreds of kilometers through the Arctic Ocean and is now heading toward Siberia. This movement affects everything from our phone’s compass apps to airplane navigation systems. Scientists recently found a remarkable piece of evidence that helps explain these magnetic changes – an ancient tree in New Zealand. This tree, preserved for 42,000 years, recorded a time when Earth’s magnetic field behaved very differently from today. “For the first time ever, we have been able to precisely date the timing … Continue reading Earth’s Magnetic Pole Races Toward Siberia as Ancient Tree Reveals 5% Field Strength Drop