Earth is belly fat because of climate change

The ice in Antarctica and Greenland melting at 382 billion tons per year is creating a large amount of water flowing into the oceans.

This amount of water is cornered towards the equator, causing the Earth's "waistline" to grow.

Ice melts in Antarctica

During the Ice Age, ending about 20,000 years ago, the enormous weight of the ice sheets caused the Earth to bulge in the middle. But then, the bulge has fallen down to less than 1mm per year.

The earth is not completely spherical. It was previously thought that the recovery effect after the ice age will make the earth become bigger and bigger, and become a perfect sphere.

However, according to the measurement information obtained from two twin satellites (GRACE), the process of changing the shape of the earth is reversing.

John Wahr, a geophysicist at the University of Colorado, said: ' There is something going on that causes the circumference of the earth to shrink.'

In 2006, NASA announced that Earth's temperature has risen to its highest level in the last four centuries. Specifically, the average temperature on the Earth's surface during the twentieth century has increased by 1 degree.