此外，美国国会还反对纳入有法律约束的气候承诺，从而削弱了本月在巴黎所达成的全球气候协定，留下了遵守和实施方面的不确定性。
And, by opposing the inclusion of legally binding climate commitments, it weakened the global climate agreement that was reached this month in Paris, leaving compliance and implementation uncertain.