Sununu is considered to have engineered Bush's mid-term abandonment of his 1988 campaign promise of . In his report "Losing Earth: The Decade We Almost Stopped Climate Change", Nathaniel Rich wrote that in November 1989 Sununu prevented the signing of a 67-nation commitment at the Noordwijk Climate Conference to freeze carbon dioxide emissions, with a reduction of 20 percent by 2005, and singled him out as a force starting coordinated efforts to bewilder the public on the topic of global warming and changing it from an urgent, nonpartisan and unimpeachable issue to a political one. Interviewed as to his involvement in preventing an agreement, he stated: "It couldn’t have happened, because, frankly, the leaders in the world at that time were at a stage where they were all looking how to seem like they were supporting the policy without having to make hard commitments that would cost their nations serious resources. Frankly, that’s about where we are today."