Only someone in a coma could be unaware of the climate change controversy for the past decade. Every few days, there are new stories in the popular media about the topic. The crux of the theory is that carbon dioxide (CO2) is put into the air by burning fossil fuels, and the concentration of CO2 impacts our climate. The theory maintains that ultraviolet rays heat the surface of the Earth, but CO2 traps the heat, preventing it from being reflected out of the Earth's atmosphere. There are several claims made that relate to this theory:
- The average global temperature is increasing and has been for about 150 years.
- The primary cause of the warming, at least in recent years, is anthropogenic (human-caused). (Increases in CO2 in the air are almost exclusively due to fossil fuel consumption.) There is an indisputable scientific consensus about this.
- The consequences of this warming will be devastating disasters like melting ice caps and rising sea levels (therefore displacement of many people), more frequent and more violent hurricanes, and the extinction of many species.
Critics of these claims are frequently ridiculed as "flat earth" buffoons or minions of big corporations and energy companies. The template through which events are often reported is objective, impartial scientists altruistically working to save the planet being opposed by evil greedy corporations who want to destroy the Earth. It is a compelling story that plays into many of the values and prejudices people have in society. But there is another side to this story. To understand it, we have to go back sixty years.
Forty-six years ago, Dwight Eisenhower made a prophetic statement in his Farwell Address. In it, he talked about the Military-Industrial Complex. He was apprehensive about the corrupting influences of powerful corporations on society. However, if we read on in Eisenhower's speech, we find this statement:
“The prospect of the domination of the nation’s scholars by Federal Employment, project allocations, and the power of money is ever present – and is gravely to be regarded. Yet holding scientific research and discovery in respect as we should, we must always be alert to the equal and opposite danger that the public could itself become captive of a scientific-technological elite.”
The development of the atomic bomb during the Manhattan Project had been such a successful partnership between government, science, and business that Roosevelt commissioned Vannevar Bush (no relation to the current president), one of his White House science staff persons, to develop a proposal for how this arrangement might be institutionalized to address other scientific problems in the future. Bush's aggressive proposal went to Truman after Roosevelt's death and was enthusiastically received. It resulted in the creation of the National Science Foundation, working under the president and a host of other research arms in cabinet departments like Defense and, later, Energy. By 1960, Eisenhower already had reservations. The problem is that determining what is a "problem" becomes less a scientific question than a political one. If you want funding, you had better study what the funders see as "the problem."
The late 1970s were a time of focused efforts in studying and developing energy alternatives. It was during the 1970s that Energy Secretary James Schlesinger became interested in the possible impacts of fossil fuels on climate change, or as it was known then, "global cooling." The global temperature had been declining from the 1940s to the 1970s, and it was feared that emissions were blocking the Sun's heating capabilities and would throw us into an ice age.
Research funding continued to grow for studies on climate change through the 1980s when nature decided to throw scientists a curve ball. It was determined that Earth had started warming up in the early to mid-1970s. Not to be outfoxed, scientists postulated that instead of blocking the Sun's heat, a greenhouse effect would be created that would trap the heat and make global warming. James Hansen of NASA indicated in congressional testimony in 1988, that we could expect the temperature to increase nearly 3 degrees C (well over 5 degrees F) in the next fifty years, an exaggeration by about a multiple of four. He later justified his extreme scenario because he needed to get the attention of policymakers who were largely unaware of the "problem" of global warming.
In other words, if you can get the policymakers to perceive a crisis, you have created a "problem" for scientists to "solve." The coffers open up. Politicians want "scientific evidence" that they are funding efforts to address their constituents' "problems."
So, imagine you are a scientist. You do research and conclude that greenhouse gases are not the problem. It is driven by variations in radiation from the Sun (for example). You conclude that the impact of warming is likely to be minimal. What are you going to say at the next federal funding hearings? "Good news. No significant anthropogenic global warming. My colleagues and I don't need your money anymore. Thank you very much." Not only are you de-funding yourself but also undercutting the funding for every other scientist studying this topic and denying political powers some political ammo about "solving problems" with taxpayer money.
Scientists advance in their fields by publishing in peer-reviewed journals. The reviewers have established a track record of publication and are believed to be experts in their fields. They have also been competing for federal funding dollars with everybody else. They review the article that challenges the conventional wisdom about global warming and reject the article as flawed or in some way "unscientific." The scientific community is relatively tight-knit, and suddenly you can't get any of your research published. No publications eventually mean no job, or at least no advancement.
We are not talking about purely objective scientific observers. Challenges to late twentieth-century paradigms are no longer just about science. It is also about politics and potentially destroying the livelihoods of fellow scientists with whom you must have a relationship to advance. Check out Climate of Fear, an article by Richard Lindzen of MIT, in the Wall Street Journal last April.
To understand the misconceptions perpetuated about climate science and the climate of intimidation, one needs to grasp some of the complex underlying scientific issues. First, let's start where there is agreement. The public, press and policy makers have been repeatedly told that three claims have widespread scientific support: Global temperature has risen about a degree since the late 19th century; levels of CO2 in the atmosphere have increased by about 30% over the same period; and CO2 should contribute to future warming. These claims are true. However, what the public fails to grasp is that the claims neither constitute support for alarm nor establish man's responsibility for the small amount of warming that has occurred. In fact, those who make the most outlandish claims of alarm are actually demonstrating skepticism of the very science they say supports them. It isn't just that the alarmists are trumpeting model results that we know must be wrong. It is that they are trumpeting catastrophes that couldn't happen even if the models were right as justifying costly policies to try to prevent global warming.
If the models are correct, global warming reduces the temperature differences between the poles and the equator. When you have less difference in temperature, you have less excitation of extratropical storms, not more. And, in fact, model runs support this conclusion. Alarmists have drawn some support for increased claims of tropical storminess from a casual claim by Sir John Houghton of the U.N.'s Intergovernmental Panel on Climate Change (IPCC) that a warmer world would have more evaporation, with latent heat providing more energy for disturbances. The problem with this is that the ability of evaporation to drive tropical storms relies not only on temperature but humidity as well, and calls for drier, less humid air. Claims for starkly higher temperatures are based upon there being more humidity, not less--hardly a case for more storminess with global warming.
So how is it that we don't have more scientists speaking up about this junk science? It's my belief that many scientists have been cowed not merely by money but by fear.
….
Alarm rather than genuine scientific curiosity, it appears, is essential to maintaining funding. And only the most senior scientists today can stand up against this alarmist gale, and defy the iron triangle of climate scientists, advocates and policymakers.
Multiple vested interests are affecting the debate. Corporations fear financial loss, scientists want to keep their jobs and not lose funding, government agencies what to demonstrate their importance, politicians want to rally votes (of both skeptics and diehards), and the media loves sensation.
Mainline denominations have tended to jump right on board with the most apocalyptic versions of climate change. Evangelicals have been relatively silent on these topics until the past few years. One of the first evangelical organizations to begin to raise the issue was the Evangelical Environmental Network. They generally support claims about major environmental degradation and anthropogenic global warming. More recently, a statement called the Evangelical Climate Initiative was issued by a number of Evangelicals that the NAE ultimately declined to endorse. A group called the Interfaith Stewardship Alliance was formed that supports the Cornwall Declaration document. It, too, was signed by several religious leaders and scientists. It takes a more skeptical view of anthropogenic global warming and differs some on how we should respond.
So what is an appropriate Christian Response?
Michael,
I lean toward a fairly solid scepticism toward "global warming". Earth seems to go in cycles, and has been on a general upturn for some time, I believe, in spite of the fear of cooling a few decades back. (My position is in some significant part due to a post you had earlier that Scot McKnight tagged as one of his "meanderings" of the week)
I do think Christians need to speak for continued work in cleaning up the environment- the water, land and sea, and of course, air. I don't think our dumping of toxins the way we do is good for human health. Though (and my nature hates to say this) neither do I think we can or should stop all such tommorow. But we need to think long term, and little by little.
So when scepticism about "global warming" comes up, I say, "Yeah. I really do wonder..." But I think we need to be careful not to sidestep our continued problem of environmental waste, and how best to keep improving, as well as balance meeting other needs and realities.
Thanks Michael.
Posted by: Ted Gossard | Aug 18, 2006 at 10:06 PM
Thanks Ted.
"So when scepticism about "global warming" comes up, I say, "Yeah. I really do wonder..." But I think we need to be careful not to sidestep our continued problem of environmental waste, and how best to keep improving, as well as balance meeting other needs and realities."
Be sure to check out Part 2 of this post which I will post Monday. I am an envrionmentalist and fully agree with you. I don't want to give my thunder away entirely here though. *grin*
Posted by: Michael Kruse | Aug 19, 2006 at 09:03 AM