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There is now a CONTENT FREEZE for Mercury while we switch to a new platform. It began on Friday, March 10 at 6pm and will end on Wednesday, March 15 at noon. No new content can be created during this time, but all material in the system as of the beginning of the freeze will be migrated to the new platform, including users and groups. Functionally the new site is identical to the old one. webteam@gatech.edu
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Trees in the Southeast United States emit higher levels of isoprene as they are placed under stress from dry conditions. Isoprene is a precursor for the formation of ozone in the atmosphere. This forest is shown near Atlanta, Georgia. (Credit: John Toon, Georgia Tech)