The Heat Is Online

Plants Migrate Up the Alps

Plant species are migrating to higher elevations in the Swiss and Austrian Alps, where temperatures have climbed 1.25° F this century. University of Vienna scientists collected data on vascular plant species at high elevations in the middle Alps and compared the modern data with detailed historical records from early in the century. They concluded that "there is no doubt that even moderate warming induces migration processes, and that this process is under way ... global warming is already having a significant impact on plant ecology." Nature, vol. 369, June 9, 1994.