Likewise, almost everyone understands that while global warming might be a much smaller or larger problem than existing models suggest, this uncertainty is no excuse for inaction. In fact, uncertainty about global climate change should lead us to do more to guard against it than if we knew it would proceed exactly according to the central-case projections.
同样，几乎所有的人都明白虽然全球变暖可能是一个比现有模型所展示的更大或更小的问题，但这种不确定性并不是无所作为的借口。实际上，关于全球气候变化的不确定性应该促使我们对它比对主流的预测更加保持警惕。