Changing Atmosphere Affects How Much Water Trees Need

Above the forest canopy: looking down at the trees from a Michigan eddy-covariance tower.

Spurred by increasing levels of atmospheric carbon dioxide, forests over the last two decades have become dramatically more efficient in how they use water. Scientists affiliated with the National Science Foundation's (NSF) Harvard Forest Long-Term Ecological Research (LTER) site report the results in this week's issue of the journal Nature.

See the following articles:

NSF: Changing Atmosphere Affects How Much Water Trees Need  (see images)

New York Times: Some Trees Use Less Water Amid Rising Carbon Dioxide, Paper Says