When temperatures drop, and lichen is covered with ice, many reindeer are likely to starve. In addition, the thinning of the Arctic ice has made tracking reindeer herds more dangerous, as the inherited local knowledge regarding safe tracking is then no longer useful. This is clear when considering the case of Nepal, a least developed country, where rising temperatures, erratic rain- and snowfall, and the unpredictability of the beginning of the monsoon season have resulted in slow growth and decreased crop production.