Ключевые слова: arctic, assumption, bogs, cataclysm, cloud, cloudberry, cold, ecology, ejection, emission, endurance, environment, expedition, extreme, giant crater, grass, hole, hollow, hypothesis, lake, moss, natural gas, natural phenomenon, nature, north, origin, outdoor, panorama, peoples, permafrost, russia, season, shrubs, siberia, sinkhole, sky, stag, summer, taiga, travel, tundra, unknown, view, vortex, washout, water, yamal,