Water gushes out of a floodgate at the hydroelectric dam Cachi in Costa Rica
Water gushes out of a floodgate at the hydroelectric dam Cachi in Ujarras de Cartago, 60 miles of San Jose, Costa Rica, May 25, 2007. Green trail-blazer Costa Rica is drawing up plans to cut its net greenhouse gas emissions to zero before 2030, the government said on Thursday, and aims to be the first nation to offset all its carbon. REUTERS/Juan Carlos Ulate (COSTA RICA)