对于贸易制裁不断增加的争议把一些问题带到了前台。 它们不仅包括富有国家是否应该单独承担减排负担这一伦理问题，而且还包括对发展中国家是否应该恩威并用来促进环保行为。
The growing dispute over trade sanctions brings to the fore not only the fundamental ethical question of whether wealthy nations should bear the burden of emissions reduction alone, but also the strategic question of whether sticks as well as carrots should be used to induce green behavior in developing countries.