In the 13th century, Genghis Khan embarked on a mission to take over Eurasia, swiftly conquering countries and drawing them into his empire. But, legend has it that there was one obstacle that even he couldn’t overcome: a towering wall of ice, grown by locals across a mountain pass. M Jackson explores the ancient methods of growing glaciers and how they can be used to combat climate change.

在13世纪，成吉思汗（Genghis Khan）开始执行任务，接管欧亚大陆，并迅速征服了各个国家，并将它们吸引到他的帝国中。 但是，传说有一个障碍，即使他也无法克服：一个高耸的冰墙，阻碍了前进的山路。 M Jackson探索了冰川生长的古老方法，以及如何将其用于应对气候变化。