Pro & Con: Does ‘Climate-gate’ cast doubt on global warming claims?

YES. Agenda-driven scientists want to push the U.S. into a costly climate pact.

By Sarah Palin

With the publication of damaging e-mails from a climate research center in Britain, the radical environmental movement appears to face a tipping point. The revelation of appalling actions by so-called climate change experts allows the American public to finally understand the concerns so many of us have articulated on this issue.

“Climate-gate,” as the e-mails and other documents from the Climate Research Unit at the University of East Anglia have become known, exposes a highly politicized scientific circle — the same circle whose work underlies efforts at the Copenhagen climate change conference. The agenda-driven policies being pushed in Copenhagen won’t change the weather, but they would change our economy for the worse.

The e-mails reveal that leading climate “experts” deliberately destroyed records, manipulated data to “hide the decline” in global temperatures, and tried to silence their critics by preventing them from publishing in peer-reviewed journals. What’s more, the documents show that there was no real consensus even within the CRU crowd. Some scientists had strong doubts about the accuracy of estimates of temperatures from centuries ago, estimates used to back claims that more recent temperatures are rising at an alarming rate.

This scandal obviously calls into question the proposals being pushed in Copenhagen. I’ve always believed that policy should be based on sound science, not politics. As governor of Alaska, I took a stand against politicized science when I sued the federal government over its decision to list the polar bear as an endangered species despite the fact that the polar bear population had more than doubled. I got clobbered for my actions by radical environmentalists nationwide, but I stood by my view that adding a healthy species to the endangered list under the guise of “climate change impacts” was an abuse of the Endangered Species Act.

Our representatives in Copenhagen should remember that good environmental policy-making is about weighing real-world costs and benefits — not pursuing a political agenda. That’s not to say I deny the reality of some changes in climate — far from it. I saw the impact of changing weather patterns firsthand while serving as governor of our only Arctic state.

But while we recognize the occurrence of these natural, cyclical environmental trends, we can’t say with assurance that man’s activities cause weather changes. We can say, however, that any potential benefits of proposed emissions reduction policies are far outweighed by their economic costs. And those costs are real. Unlike the proposals China and India offered prior to Copenhagen — which actually allow them to increase their emissions — President Obama’s proposal calls for serious cuts in our own long-term carbon emissions. Meeting such targets would require Congress to pass its cap-and-tax plans, which will result in job losses and higher energy costs. That’s not exactly what most Americans are hoping for these days. And as public opposition continues to stall Congress’ cap-and-tax legislation, Environmental Protection Agency bureaucrats plan to regulate carbon emissions themselves, doing an end run around the American people.

In his inaugural address, President Obama declared his intention to “restore science to its rightful place.” But instead of staying home from Copenhagen and sending a message that the United States will not be a party to fraudulent scientific practices, the president has upped the ante. He plans to fly in at the climax of the conference in hopes of sealing a “deal.” Whatever deal he gets, it will be no deal for the American people. What Obama really hopes to bring home from Copenhagen is more pressure to pass the Democrats’ cap-and-tax proposal. This is a political move. The last thing America needs is misguided legislation that will raise taxes and cost jobs — particularly when the push for such legislation rests on agenda-driven science.

Without trustworthy science, Americans should be wary about what comes out of this politicized conference. The president should boycott Copenhagen.

Sarah Palin was the 2008 Republican nominee for vice president and governor of Alaska from 2006 to 2009.

NO. A few leaked e-mails can’t change the consensus of science.

By Alan I. Leshner

Don’t be fooled about climate science. In April, 1994 — long after scientists had clearly demonstrated the addictive quality and devastating health impacts of cigarette smoking — seven chief executives of major tobacco companies denied the evidence, swearing under oath that nicotine was not addictive.

Now, the American public is again being subjected to those kinds of denials, this time about climate change. While Sarah Palin wrote that she did not deny the “reality of some changes in climate,” she distorted the scientific evidence that Earth’s climate is changing, largely as a result of human behaviors. She also badly confused the concepts of daily weather changes and long-term climate trends when she wrote that “while we recognize the occurrence of these natural, cyclical environmental trends, we can’t say with assurance that man’s activities cause weather changes.” Her statement inaccurately suggests that short-term weather fluctuations must be consistent with long-term climate patterns. And it is the long-term patterns that are a cause for concern.

Climate-change science is clear: The concentration of atmospheric carbon dioxide — derived mostly from the human activities of fossil-fuel burning and deforestation — stands at 389 parts per million. We know from studying ancient Antarctic ice cores that this concentration is higher than it has been for at least the past 650,000 years. Exhaustive measurements tell us that atmospheric carbon dioxide is rising by 2 ppm every year and that the global temperature has increased by about 1.1 degrees Fahrenheit over the past century. Multiple lines of other evidence, including reliable thermometer readings since the 1880s, reveal a clear warming trend. The broader impacts of climate change range from rapidly melting glaciers and rising sea levels to shifts in species ranges.

Already, sea levels are estimated to rise by 1 to 2 meters by the end of this century. Some scientists have said that average temperatures could jump by as much as 4 degrees Fahrenheit if the atmospheric carbon dioxide level reaches 450 ppm. We may face even more dangerous impacts at 550 ppm, and above that level, devastating events. U.S. crop productivity would be affected, and European communities might suffer increased fatalities because of intensely hot summers.