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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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Hundreds of people have been killed by devastating floods that have hit large parts of eastern and central Africa. Torrential rains have swept across the region after a shift in temperature between the eastern and western shores of the Indian Ocean. The phenomenon is called ‘Indian Ocean Dipole’ or ‘Indian Niño’. Peter Webster, Professor Emeritus of Earth and Atmospheric Sciences at the Georgia Institute of Technology in Atlanta, explains why it is happening.