Learn about the Arctic Tundra. Detailed graphics, diagrams and video help us understand summer and winter climate in the Arctic tundra regions, latitudes, characteristics of the tundra, permafrost and its importance, the active layer of soil, formations (thermokarsts, taliks, and pingos), carbon dioxide and methane gases, tundra biome, plants and animals of the Arctic tundra, adaptations, the effects of global warming, and working to preserve the tundra.