Greenland covered with ice sheets was not a single piece of snow! This vast area of North America is going to return to the state it was billions of years ago. This claim by the geologist has raised tensions. In addition, researchers have a fold of thought on their foreheads.

A few years ago, geologists dug up the ice and collected soil from Greenland. Long research goes on with that soil. There they got sensational information. Not only that, all meditation ideas change about Greenland. Till now it was thought that Greenland was covered with ice sheet from the beginning. But the researchers claim that the soil samples there show that the island was free of snow four hundred thousand years ago. At that time the climate of the world was much warmer than today.

Note that 660,000 square miles of Greenland are currently covered in ice sheets. Its average depth is about 0.9 miles. This ice has started melting due to global warming in the last few years. Scientists fear that it can cause a big disaster.

Researchers estimate that the rate at which climate is changing has increased the melting of Greenland's ice. If this situation continues, all the ice will melt before the scheduled time and the soil of the island will come out. In that case, the sea level will increase. If all of Greenland's ice melts, global sea levels could rise by up to 23 feet, they said.

Fears on this issue have been heard in the voice of University of Vermont professor and geologist Paul Bierman. He said, 

"When the temperature increases, the ice sheets of Greenland disappear. We have evidence of the rapid melting of this ice. In the past, this island was buried under 12 feet of ice, which has decreased a lot.  We are moving towards an ice-free Greenland because of climate change and warming."

Incidentally, 60 years ago in 1966, Greenland's ice was cut and its soil was collected. At that time, the US army occupied the northwestern part of Tushar Dhaka Island. Not only that, they also arranged to keep nuclear missiles there. This decision was taken to avoid a Soviet attack. In 1967, the American army left the area. Later, researchers from many countries visited Greenland.

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