Fatih Birol says that even though governments the world over have put increasing energy efficiency at the top their to-do lists, efficiency has worsened for two years in a row.

Birol warned such backslides have real consequences: If the status quo continues until 2017, the world will lose the chance to limit the rise in global temperatures to 2 degrees Celsius (3.6 Fahrenheit), as international negotiators have agreed.

Birol was commenting on the findings released by the IEA on Wednesday in its annual World Energy Outlook.