07/29/2010: EPA Rejects Claims of Flawed Climate Science
The petitions to reconsider EPA’s Endangerment Finding claim that climate science cannot be trusted, and assert a conspiracy that invalidates the findings of the Intergovernmental Panel on Climate Change (IPCC), the U.S. National Academy of Sciences, and the U.S. Global Change Research Program. After months of serious consideration of the petitions and of the state of climate change science, EPA finds no evidence to support these claims. In contrast, EPA’s review shows that climate science is credible, compelling, and growing stronger.[Lots of detail here]: Denial of Petitions for Reconsideration of the Endangerment and Cause or Contribute Findings for Greenhouse Gases under Section 202(a) of the Clean Air Act | Regulatory Initiatives | Climate Change | U.S. EPA
“The endangerment finding is based on years of science from the U.S. and around the world. These petitions -- based as they are on selectively edited, out-of-context data and a manufactured controversy -- provide no evidence to undermine our determination. Excess greenhouse gases are a threat to our health and welfare,” said EPA Administrator Lisa P. Jackson. “Defenders of the status quo will try to slow our efforts to get America running on clean energy. A better solution would be to join the vast majority of the American people who want to see more green jobs, more clean energy innovation and an end to the oil addiction that pollutes our planet and jeopardizes our national security.”
The basic assertions by the petitioners and EPA responses follow.
Claim: Petitioners say that emails disclosed from the University of East Anglia’s Climatic Research Unit provide evidence of a conspiracy to manipulate global temperature data.
Response: EPA reviewed every e-mail and found this was simply a candid discussion of scientists working through issues that arise in compiling and presenting large complex data sets. Four other independent reviews came to similar conclusions.
Claim: Petitioners say that errors in the IPCC Fourth Assessment Report call the entire body of work into question.
Response: Of the alleged errors, EPA confirmed only two in a 3,000 page report. The first pertains to the rate of Himalayan glacier melt and second to the percentage of the Netherlands below sea level. IPCC issued correction statements for both of these errors. The errors have no bearing on Administrator Jackson’s decision. None of the errors undermines the basic facts that the climate is changing in ways that threaten our health and welfare.
Claim: Petitioners say that because certain studies were not included in the IPCC Fourth Assessment Report, the IPCC itself is biased and cannot be trusted as a source of reliable information.
Response: These claims are incorrect. In fact, the studies in question were included in the IPCC report, which provided a comprehensive and balanced discussion of climate science.
Climate change is already happening, and human activity is a contributor.
Response to PetitionsMyths vs. Facts: Denial of Petitions for Reconsideration of the Endangerment and Cause or Contribute Findings for Greenhouse Gases under Section 202(a) of the Clean Air Act | Regulatory Initiatives | Climate Change | U.S. EPA
The CRU emails do not show either that the science is flawed or that the scientific process has been compromised. EPA carefully reviewed the CRU emails and found no indication of improper data manipulation or misrepresentation of results.