Naked Science

Birth Of America (2008x3)

Date de diffusion: Mar 06, 2008

The shape of the North American continent has changed radically over millions of years. During the great Ice Age, glaciers carved out the Great Lakes; as the Earth's temperature rose, they filled with glacier melt. The Great Salt Lake is just a shadow of its former self. And as tectonic plates continue to move, America moves closer to Europe each year.