However, as the U.S. Senate had adopted the Byrd-Hegel Resolution, the Senate had decided not to ratify the Kyoto Protocol in the case where any incident which holds true with the article 3 of the resolution takes place such as absence of developing countries.
しかし、米上院はバード・ヘーゲル決議を採択していたので、途上国が参加しない場合など、3項に当てはまる場合は、上院が議定書を批准しないことが決まっていた。