Rebecca Moore (R), Engineering Manager o

Rebecca Moore (R), Engineering Manager of Google Earth Engine and Earth Outreach, and Brazilian Surui tribe Chief Almir smiles during press conference in Rio de Janeiro June 16, 2012. Moore announced the creation of a Google culture map for the Surui tribe in Amazonia. The UN conference, which marks the 20th anniversary of the Earth Summit -- a landmark 1992 gathering that opened the debate on the future of the planet and its resources -- is the largest ever organized, with 50,000 delegates. AFP PHOTO /VANDERLEI ALMEIDA (Photo credit should read VANDERLEI ALMEIDA/AFP/GettyImages)