Periods of global warming and cooling have caused the terrain of Greenland to change over time -- part of the natural process of the Earth's evolution. But as VOA's Kane Farabaugh reports, scientists who work in Greenland are concerned that evidence they are finding today in the ice indicates that mankind could be causing a change in Greenland's natural evolution -- for the worse. Eighty-five percent of Greenland, the world's largest island, is covered in ice. It is also home to ten percent of the world's ice mass. Jacobshaven GlacierThe Jacobshaven Glacier , at nine kilometers a year, it is currently the world's fastest-moving glacier. Historians and scientists believe this mass of draining ice produced the iceberg that sunk the Titanic ocean liner in 1912. It is also a glacier that could contribute to sinking coastlines of major countries if it were to melt completely. Greenland is the fastest-warming location on the planet. The average temperature here is...