The political debate over greenhouse warming heated up by several degrees when an industry group charged that revisions to a crucial chapter in a United Nations report on climate change violated peer review and amount to “scientific cleansing” of doubts about human influence on climate. Earlier this month, the Washington, D.C.-based Global Climate Coalition—which is supported by oil and coal producers and electric utilities—argued in a public statement that changes made after the draft report was issued last fall were politically motivated. The authors of the chapter at issue, which concludes that a human effect on climate may already be apparent, deny the charges, saying that the changes were legitimate and were made at reviewers' suggestions.
Read full abstract