求翻译：正如我们所知，全球变暖成为了09年的哥本哈根世界气候大会上的焦点议题。而全球变暖的一大成因正是因为能源使用不当而导致的碳排放超标。是什么意思？

As we know, global warming has become the 2009 World Climate Conference in Copenhagen, the focus on the issue. And one of the major causes of global warming is caused by improper use of energy because of carbon emissions exceeded.

As we know, global warming has become the Copenhagen 09 focal topic on World Climate Conference. As a major cause of global warming is caused by improper because energy use carbon emissions exceed the target.

Just like we know, the whole world changed has warmly become at 09 year Copenhagen world climate congress focal point subject.As soon as but the whole world changes warm accomplishes because of is precisely because of the energy use not when causes carbon emissions exceeding the allowed figure.

As we know, the global warming became 09 focus issues on the world climate conference in Copenhagen. Global warming causes a major because improper use energy caused by excessive carbon emissions.

As we know, the global warming became 09 focus issues on the world climate conference in Copenhagen. A major cause of global warming because of excessive carbon emissions resulting from improper use of energy.