Tham khảo tài liệu 'ielts reading and writing part 2', ngoại ngữ, toefl - ielts - toeic phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Reading Passage 1 You should spend about 20 minutes on Questions 7 - 13 which e I. A Sizzling Scientific Debt Environmentalists staged Earth Day to dramatize a simple message The planet is threatened by a host of man - made ills from toxic landfills to ozone depletion. But at least one part of the message the theoiy that the buildup of carbon dioxide and other green - house gases in the atmosphere will cause global wiirming has come under considerable attack. A small but vocal group of scientists contends that the case for wanning is sketchy and based on inadequate computer models. R Forces in Washington led by White House chief of staff John Sununu have seized upon the de Irate and persuaded President Bush to take a cautious approach to the problem. While not dismissing the greenhouse threat the President has emphasized the need for more scientific research to help determine lhe proper policy response. This go - slow approach has irritated government officials in several other countries especially in Western Europe. As the Europeans point art many scientists still fear that global wanning could take place unless strong action is taken to prevent it. r last week representatives from 18 nations gathered in Washington for a global - warming conference set up by the White House. The Bush Administration had hoped to get a debate going on the uncertainties of the greenhouse effect. Instead most of the delegates appeared to agree that the global - warming threat is real and potentially serious. In the face of this strong sentiment President Bush denied that he was taking global warming too lightly. The President reconfirmed a . pledge to cooperate in a United National agreement on dealing with climate change. The greenhouse dilemma illustrates the difficulty of setting policy based on uncertain projections of the future. Scientists generally agree that an unchecked accumulation of greenhouse gases will eventually lead to warming but no one knows when it will Start how
