据美国《化学与工程时报》报道,美国国会前不久举行的两次听证会都敦促美国应重新加强全球变化研究计划。克林顿科学顾问约翰 H·吉本斯在众议院能源与自然资源委员会的一次发言中指出,该计划应从其目前仅强调硬科学扩大到包括诸如气候变化的影响和如何适应这些变化的问题。与此同时,一个科学家小组在参议院科学、空间与技术小组委员会上发言指出, According to the U.S. Chemical and Engineering Times, both hearings shortly before the U.S. Congress urged the United States to reinvigorate the study plan on global change. In a speech to the House Energy and Natural Resources Committee, Clinton Science Adviser John H. Gibbons pointed out that the plan should extend from its current emphasis on hard science to include issues such as the effects of climate change and how to adapt to them. In the meantime, a team of scientists made a speech at the Senate Science, Space and Technology Subcommittee,