Guardian: Which country is number one in carbon emissions? Up until very recently, it was the US – now, it is indisputedly China, as shown by this data. These are the latest figures – up to 2007 – from the respected US Energy Information Administration. This has (literally) every country in the world on it and its emissions going back to 1980 — plus we’ve put on some handy percentage change data and ranking information. The curious thing is, we’ve been here before. Last year we reported …