Glacier is one among subjects that scientists are researching today. Glacier has mysteries that attracts experts come to get information about it. Glacier looks like a solid block of ice, but in fact it is river of ice that moving. Indeed, glacier is moving hundreds feet every day. The question was made here is how it happen? Scientists is still trying to find out the reasons and really bad behavior of it. On the Green land, that is the largest glacier Jokobshavn where a group of scientists was examining about it. It is over thousands feet thick and more four miles wide. It is the fastest moving glacier on the world. Scientists announced it moved about 113 feet every day, and speed of moving would still be increasing. The problem here is its not just speeding up but it is shrinking. For last 5 years, it has been moving 8 miles and pushing the ice fall to the ocean, so it is losing ice every year. Jay Zwally a glaciologist with a group of scientists were there and trying to identify what has been really happening. He said we couldn’t feeling it moving. It is gentle motions under the ice. They used many stools and machines to measure wind speed, temperature and others factors. Then they collected information and put them together to try to identify glacier’s moving speed. They almost lived there for many years to research about glacier. They had tents that were filled up by snow. They had enough materials that could help them live there for a long time. They also usually examined areas around there. They spotted that temperature was increasing, so it made ices melt and the water would be free. Melt water on the surface was increasing and when there is a crack, water will follow the crack go to the bottom, lift the ice and make it move. That is its process and so, every years the ice is losing its self and water would be free. It can cause dangers to the world that we are living on. No one knows it happened thousands years ago or even today.
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