政府间气候变化委员会（Intergovernmental Panel on Climate Change）2013年报告明确指出，最有可能的罪魁祸首是我们在过去半个世纪中所排放的二氧化碳。
And, as the 2013 report by the Intergovernmental Panel on Climate Change makes clear, our carbon-dioxide emissions over the past half-century are extremely likely to be to blame.