By Andy Revkin

Peter H. Gleick, a water and climate analyst who has been studying aspects of global warming for more than two decades, in recent years became an aggressive critic of organizations and individuals casting doubt on the seriousness of greenhouse-driven climate change. He used blogs,congressional testimony, group letters and other means to make his case.

Now, Gleick has admitted to an act that leaves his reputation in ruins and threatens to undercut the cause he spent so much time pursuing. His summary, just published on his blog at Huffington Post, speaks for itself. You can read his short statement below with a couple of thoughts from me:

The Origin of the Heartland Documents

Peter Gleick

Since the release in mid-February of a series of documents related to the internal strategy of the Heartland Institute to cast doubt on climate science, there has been extensive speculation about the origin of the documents and intense discussion about what they reveal. Given the need for reliance on facts in the public climate debate, I am issuing the following statement.

At the beginning of 2012, I received an anonymous document in the mail describing what appeared to be details of the Heartland Institute’s climate program strategy. It contained information about their funders and the Institute’s apparent efforts to muddy public understanding about climate science and policy. I do not know the source of that original document but assumed it was sent to me because of my past exchanges with Heartland and because I was named in it.

Given the potential impact however, I attempted to confirm the accuracy of the information in this document. In an effort to do so, and in a serious lapse of my own and professional judgment and ethics, I solicited and received additional materials directly from the Heartland Institute under someone else’s name. The materials the Heartland Institute sent to me confirmed many of the facts in the original document, including especially their 2012 fundraising strategy and budget. I forwarded, anonymously, the documents I had received to a set of journalists and experts working on climate issues. I can explicitly confirm, as can the Heartland Institute, that the documents they emailed to me are identical to the documents that have been made public. I made no changes or alterations of any kind to any of the Heartland Institute documents or to the original anonymous communication.

I will not comment on the substance or implications of the materials; others have and are doing so. I only note that the scientific understanding of the reality and risks of climate change is strong, compelling, and increasingly disturbing, and a rational public debate is desperately needed. My judgment was blinded by my frustration with the ongoing efforts - often anonymous, well-funded, and coordinated - to attack climate science and scientists and prevent this debate, and by the lack of transparency of the organizations involved. Nevertheless I deeply regret my own actions in this case. I offer my personal apologies to all those affected.

The Heartland Institute had already signaled that it plans to seek charges and civil action against the person who extracted its documents under a false identity. Foreshadowing today’s events, on Friday, Ross Kaminsky, a senior fellow and former board member at Heartland, posted a piece on the American Spectator site naming Gleick as an “obvious suspect.” Now they have their man.

I won’t speculate on how the legal aspects of this story might play out.

Another question, of course, is who wrote the climate strategy document that Gleick now says was mailed to him. His admitted acts of deception in acquiring the cache of authentic Heartland documents surely will sustain suspicion that he created the summary, which Heartland’s leadership insists is fake.

One way or the other, Gleick’s use of deception in pursuit of his cause after years of calling out climate deception has destroyed his credibility and harmed others. (Some of the released documents contain information about Heartland employees that has no bearing on the climate fight.) That is his personal tragedy and shame (and I’m sure devastating for his colleagues, friends and family).

The broader tragedy is that his decision to go to such extremes in his fight with Heartland has greatly set back any prospects of the country having the “rational public debate” that he wrote - correctly - is so desperately needed.

See Andy Revkin’s DotEarth here. Revkin writes:

Now, Gleick has admitted to an act that leaves his reputation in ruins and threatens to undercut the cause he spent so much time pursuing. His summary, just published on his blog at Huffington Post,

Peter Gleick’s HuffPo blog here.