Global warming - main reason why ice sheets in North America vanish. For the next 300 years, the ice sheets will totally melt.
Global warming is the most seen reason by scientists that causes the gradual vanishing of the ice sheets in North America. In the next 300 years, the Barnes Ice Cap Island in Canada is expected to melt as shown in its current situation.
Mail Online reported that the Delaware-sized ice cap with 500 meters thick is calculated to disappear in the next 300 years because of global warming. This is part of the Laurentide Ice sheet which has once covered millions of square miles in the North America.
According to Science Daily, the Barnes Ice Cap is the last piece of which blanketed more than half of the North America and is part of its geography ever since. The possible result of global warming and the usual greenhouse gas emissions showed that the Barnes Ice Caps is so small and can be melted in that short span of time.
Co-author and CU-Boulder Professor Glifford Miller said that if the melting of the Barnes Ice cap happens due to global warming, it would cause a sea level rise. Also, this would cause the greater ice sheets such as that of in Antarctica and Greenland to melt.
The Barnes Ice Cap as part of the North American ice sheet has started receding 14,000 years ago. The ice sheet grew and shrank for several times as Earth went on various climate cycles, and with just through the rough effect of global warming, the thousands of years would diminish in just 300 years.
In the study of scientists using their model to estimate the melting of the ice sheet is a warning to be cautious in global warming and at least decrease its effect. Professor Miller said, "The fact that the Barnes Ice Cap is disappearing now, is a representation that the Earth is really outside of what it had experienced in 2.5 million years interval."
