There are many climate regions around the world. Some of them can vary from mild temperatures to very extreme ones. One of the harshest regions is the tundra. The tundra is an area of land that has no tree growth due to its cold, windy, and dry nature. Tundras can be found in the northern parts of the globe, in the Arctic, and the tops of mountains. They have a layer of frozen ground called permafrost, which prevents almost anything from growing in the soil. Therefore, only a few animals and plants can survive in these conditions