Showing posts with label critical thinking. Show all posts
Showing posts with label critical thinking. Show all posts

Saturday, January 26, 2008

Combating Climate Change Denial

Updated

It may be hard to believe that there are people who can stare straight at where a glacier used to be and swear that Earth's climate is not changing to any degree that will affect humanity. It may be hard to believe that some people who are not oil company executives still refuse to believe that human activities have any effect on the earth's climate. Such arguments do exist, however, and as silly as they sound they cannot be simply ignored.

According to cognitive scientists, a statement that is met with silence is more likely to be believed. Therefore, as frustrating as it is to confront the same falsehoods over and over and over and over... it is necessary. Not to change the minds of the claimants, who are emotionally invested in their position, but for the sake of the innocent bystanders.

Here are some resources for debunking myths and misinformation about climate change:

I hope that helps you! Human beings are affecting our climate, and being affected by it; these effects will become increasingly serious; and we must take serious actions now or pay serious penalties later. We do not have to wait to act until every last soul on earth is convinced of the necessity. Most people already agree. Our actions will be more effective, however, the more people participate. People with accurate information always solve problems better.

Saturday, December 29, 2007

Climate change deniers never get tired - only their arguments do

According to cognitive scientists, the first thing our brain naturally does when hearing a new statement is believe it. Only afterwards do the habits of skepticism kick in -- if we have trained them -- and send our neurons scouting for any counter-evidence. "It ain't necessarily so" is a trained response -- not a built-in circuit.

So what do you do if your claim is disproved the first time you make it? Repeat it -- over and over and over, until everybody gets tired of correcting you, and then you win!

I am not tired yet. Steven "The JunkMan" Milloy of the Competitive Enterprise Institute posts a Global Warming Denial's Top Ten List as a year-end wrap-up. Here, once again, is why he is still wrong:

  1. Milloy trumpets a study by climate-change skeptics claiming that Observed temperature changes measured over the last 30 years don’t match well with temperatures predicted by the [IPCC's] mathematical climate models..."

    He didn't finish his research. On the same day that Science Daily and Fox News noticed the study, the climate scientists at RealClimate.org posted a refutation of it. For a less technical summary, See #3 of Prof. John Mitchell's Climate Change Myths:
    Myth 3 - There is less warming in the upper atmosphere than at the surface which disproves human-induced warming

    We expect greater warming in the upper atmosphere than at the surface in the tropics, but the reverse is true at high latitudes. This expectation holds whether the cause of warming is due to greenhouse gases or changes in the Sun’s output. Until recently, measurements of the temperature changes in the tropics in recent decades did not appear to show greater warming aloft than at the surface. It has now been shown that allowing for uncertainties in the observations, the theoretical and modelling results can be reconciled with the observations.

    The bottom line is that the range of available information is now consistent with increased warming through the troposphere (the lowest region of the atmosphere).
    Turns out, the authors tried the same argument before in 2004 and got trounced. They tried this year with a slightly revised version; they are still wrong.

  2. Milloy says one more time with feeling, "It's all the sun's fault!" This is getting as old as "Evolution is just a theory." One more time, with feeling, "No, it's not!"

  3. It was even warmer 1000 years ago, so we can't be causing the warming now!

    This is one more attempt to sell the Medieval Warming Period as a global phenomenon; still shoddy merchandise. The latest "study" is by Craig Loehle, of the National Council for Air and Stream Improvement -- an "environmental resource for the forest products industry" that is largely funded by the forest products industry.

    Find out more on the Medieval Warming Period at GristMill, NOAA, and Wikipedia, as well as the RealClimate entry linked above.

  4. We don't have to do anything to correct global warming: the atmosphere self-regulates.

    One more example of "personal responsibility" conservatives sloughing off any hint of personal responsibility. James Lovelock, who first proposed the vision of a "self-regulating" system Earth, himself thinks we have overloaded the system.

    I think: 1) When you make a mess, do you clean it up yourself or do you wait for the "natural forces of the environment" to decay it? 2) How many people have to lose their livelihoods, lose their homes, sicken, and die while we wait for the climate to "self regulate"? 3) Nature has no reason to favor human interests in her "self-regulation." Natural "self-regulation" could include plague, flood, fire, and other methods more unpleasant to humans than cutting down on driving.

  5. Roll out the Straw Man! A 2005 report on the Atlantic Ocean current raised alarms in some of the media. Milloy uses this as an example of scientists being "alarmist," although scientists themselves were much more cautious about the findings. A better way to prevent future alarmism would have been to improve his readers' understanding of the science, as the scientists at RealClimate did. Further news about the Atlantic Current.
I have gotten a bit tired, after all. I'm going to have to close this blog entry here and continue the list "next year." Do you think that Steven Milloy, who gets paid for this kind of thing, could be induced to do his own research?

More on Steven Milloy.

Saturday, December 1, 2007

The war on science

Nova had an excellent documentary recently, "Intelligent Design on Trial." You can still view it online.

The push to teach "Intelligent Design" on an equal footing with the theory of evolution is part and parcel of a determined assault on the standards of intellectual inquiry that underpin democracy itself.

The foundation of democracy is liberalism, and the foundation of liberalism is the premise that truth is discovered by free inquiry -- and is always in the process of discovery. Anyone and everyone can make a claim, anyone and everyone can challenge a claim, and all debate is public and based on publicly available evidence.

In the worldview of a certain kind of conservative, there has to be an Authority over everything. When scholars say that truth is not subject to the authority of Scripture, scriptural conservatives think that they are trying to replace that authority with something else. In the worldview of those scholars, however, truth IS the authority, and the only authority.

This is intellectual humility. Enlightenment inquiry acknowledges the limitations of human reason, and therefore requires that all claims be subject to independent test, and always open to question and revision. The more tests a claim stands up to, the more credible it is -- but nothing is absolutely certain, because we aren't absolutely perfect.

To claim that "revealed truth" IS absolutely certain is not "humility" -- it is the ultimate in egotism. The claim that you know God and you know what God said and you understand it beyond question, the refusal to subject your own worldview to any test, are the hallmarks of religious fundamentalism, and they are hallmarks of arrogance. It is no coincidence that the same people who make these claims call democracy "demoncracy" and believe it should be severely restricted. Democracy depends on open dialogue more than it depends on the vote; an open dialogue in which all claims can be tested independently, and there is no special authority over truth.

"Intelligent Design" is not a scientific theory, because it is not testable; it provides no structure on which testable predictions can be made. This is not simply because the proponents of ID do not understand science. It is because they do not want to understand science. The concept of a truth that is independent of authority and always subject to question is inconceivable to them. It frightens them. And until they can confront this fear and accept the reality that the truth IS beyond perfect understanding, they will never understand the scientific debate.

The debate must continue, but it must continue by the rules of scientific reasoning; Enlightenment intellectual ethics. Do not allow those rules to be subverted by "Intelligent Design" proponents trying to run onto the football field with a baseball bat to slam the frizbie into the basket.