Ancient high-altitude trees grow faster as temperatures rise

Courtesy ScienceDaily  Tue, 11/17/2009 - 11:30

Increasing temperatures at high altitudes are fueling the post-1950 growth spurt seen in bristlecone pines, the world's oldest trees, according to new research.

The pines near treeline have wider annual growth rings for the period from 1951 to 2000 than for the previous 3,700 years.

Regional temperatures, particularly at high elevations, have increased during the same 50-year time period. The finding is another example of changes in high-elevation ecosystems that are linked to warming temperatures.

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