Input (grade 12): The ratification by Russia on 18 November 2004 satisfied the "55%" clause and brought the treaty into force, effective 16 February 2005.
Output (grade 10): The Kyoto Protocol was officially put into "full force" on February 16, 2005. On February 16, Russia began to follow (ratify) the Kyoto Protocol and it was decided to be put into "full force".