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The magnetic field of Earth is weakening more rapidly than many scientists thought it would, a sign that Earth’s magnetic poles might flip within a few hundred years as opposed to thousands of years. Data collected from Swarm, the collective name for three European Space Agency (ESA) satellites, confirms that Earth’s magnetic field is weakening, something which has led to many past switches in Earth’s magnetic poles.
According to LiveScience, the magnetic field of Earth is produced by an iron core at the center of the planet and it extends above Earth’s surface 370,000 miles. One of the reasons that Earth’s magnetic field is important is that it is like a defensive force field, blocking out much of the radiation bombarding Earth daily from space and the sun.
Fire officials in northern California said late Saturday that a rapidly spreading blaze has torched over 3,000 acres and forced the evacuation of over 500 homes.
Evacuation orders were expanded to include approximately 265 homes in Amador County. Previous orders had covered about 250 homes about 40 miles east of Sacramento.
Since it broke out at around 5 p.m. Friday, the so-called Sand Fire has destroyed five homes and seven outbuildings. Many vineyards are in the area but the flames were moving away from them, said Lynn Tolmachoff, a spokeswoman for the California Department of Forestry and Fire Protection.
"The drought is very severe here. All the plants are catching fire and spreading very easily," Tolmachoff said.