Kyoto treaty造句怎么写

The Kyoto treaty, in effect until 2012, limits carbon gas emissions by industrialized economies, but excludes poor nations and developing economies from its provisions.

The UN's troubled Kyoto treaty on climate change may also be a motivating factor.

Environment ministers from 180 countries will start trying to rescue the Kyoto treaty on global warming shortly. They join their officials who have been meeting all week in the German city of Bonn.