New Hampshire researchers find CO2 alters how trees grow

Published: Aug. 15, 2019 at 4:13 PM EDT
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New research from the University of New Hampshire finds the increase in carbon dioxide emitted into the atmosphere by human activity and fossil fuels is altering the way forests grow and use water.

Scientists found that trees respond to this rise in CO2 by using it to grow faster or by conserving water, depending on whether water is abundant or scarce.

Scientists previously suspected the increase in atmospheric CO2 levels would cause trees to lose less water, but this new research provides a more complicated story.