Mongabay: On late Friday, US President Barack Obama reached an agreement described as "meaningful" during a meeting with Chinese Premier Wen Jiabao, Indian Prime Minister Manmohan Singh and South African President Jacob Zuma at the last day of the Climate Change Conference in Copenhagen. "No country is entirely satisfied with each element but this is a meaningful and historic step forward and a foundation from which to make further progress," an American official said. "It’s not sufficient to …