Reuters: Japan has signed an agreement with the Czech Republic to buy surplus allowances for greenhouse gas emissions, helping it achieve its reduction goals under the Kyoto Protocol, the Czech Environment Ministry said on Tuesday. Japan, the world’s fifth-biggest emitter, is seeking emissions credits overseas after lagging behind in its obligation to cut emissions to 1.19 billion tonnes in carbon dioxide equivalent by 2012, or 6 percent below 1990 levels. It emitted 1.340 billion tonnes in …