The Kyoto Protocol became effective on February 16, 2005, requiring the [[European Union]] to reduce its average emissions between the years 2008 and 2012 by 8% relative to 1990 levels. | The Kyoto Protocol became effective on February 16, 2005, requiring the [[European Union]] to reduce its average emissions between the years 2008 and 2012 by 8% relative to 1990 levels. |