I did like this documentary, especially because it did not continue rehashing same tired facts every fifteen or twenty minutes to bring the viewer up to date on current and relevant events it had already brought to our attention. Omitted certain important facts, however. Facts like the mini-ice age's responsibility for being the cause of the demise of the Viking civilization. And also the reason the island of Greenland, once a lush and fertile land overgrown with trees and grass and populated with people and animals during the great warming, has since become a barren wasteland covered in thick layers of ice and snow, incapable of supporting any type of plant or animal life. Otherwise, even though there are better books on the subject, for a video, it is a captivating documentary.