2012-10-18. Scientists find ozone causes forests to use more water, reducing availability in the Southeast. |

posted Oct 24, 2012, 9:00 PM by Alan Gould

Phys.org. Article relevant to Ozone chapter 10.  Excerpt: Forest Service and Oak Ridge National Laboratory (ORNL) scientists have found that rising levels of ozone, a greenhouse gas, may amplify the impacts of higher temperatures and reduce streamflow from forests to rivers, streams, and other water bodies. Such effects could potentially reduce water supplies available to support forest ecosystems and people in the southeastern United States.
Impacts of ozone, a global scale pollutant, on forests are not well understood at a large scale. This modeling study indicates that current and projected increases in ozone in the 21st century will likely enhance the negative effects of warming on watersheds, aggravating drought and altering stream flow. …Published in the November issue of the journal Global Change Biology, the study suggests that ozone has amplified the effects of warmer temperatures in reducing streamflow in forested watersheds in the southeastern United States. Read more at: http://phys.org/news/2012-10-scientists-ozone-forests-availability-southeast.html