Scientific Skepticism | Dr. Steven J. Allen

97% is a number you might have heard a lot in the last few years. That’s the number of scientists who supposedly believe in global warming theory. That 97% claim is questionable, but let’s ask the more important question: why do we find the idea of consensus convincing at all? The terms “Global Warming Skeptic” and “Climate Change Skeptic” are insults, but those who use this line of attack ignore that science only works when there are skeptics. Science is rooted in replicable research and experimentation. A scientist examines an existing set of facts, and concocts a theory that explains those facts. He or she makes a prediction to test that theory. If the prediction comes true, that constitutes evidence to support the theory. If the prediction fails, that undermines the theory, and the scientist goes back to the drawing board. It doesn’t matter whether a scientist is on the payroll of the American Cancer Society or a tobacco company, whether he is a Communist, or a Jew or a Baptist, beats her spouse, or volunteers at a soup kitchen. Only the evidence counts.

But what happens when someone gets the evidence wrong and it needs correction? That’s what critical peer review, aka “skepticism,” is for. In biomedical sciences, non-replication rates are estimated to range between 75 to 90 percent. Venture capital firms now take it for granted that 50 percent of published academic studies cannot be replicated. Imagine what would be done in those cases if there were no skeptics. Business and medicine would be at a standstill. If climate skeptics end up being correct, those attempting to silence them will go down in history alongside the members of the “scientific consensus” that, in years past, agreed that the earth was the center of the universe, that continental drift was impossible, that canals existed on Mars, and that evils such as white supremacy and eugenics were scientifically true.

When told of a publication entitled “100 Authors Against Einstein,” Albert Einstein reputedly said, “Why one hundred? If I were wrong, one would have been enough.” Science cannot function if skeptics are harassed and ostracized. When someone is challenging a scientific consensus with facts and logic, that’s to be encouraged, not dismissed due to politics. Argument, not anathemas, is the way to approach scientific issues surrounding climate changes. To learn more, you can read our study on Climate Change advocacy at climatedollars.org. I’m Dr. Steven J. Allen, thanks for watching..

How Worried Should We Be About Climate Change?

The United Nations recently held their climate summit in New York City. A few days ahead of the event, more than 300,000 people joined a peaceful march in Manhattan to call attention to the issue of climate change. Secretary Of State John Kerry recently argued that the problem of climate change should be addressed with the same immediacy as Ebola or ISIS. So, putting politics aside, how serious is this issue? Well, there’s an incredible amount of statistical evidence that illustrates the severity of climate change. But instead of getting mired down in talk about ice caps and polar bear populations, let’s just discuss what the UN Climate Summit is really about: air pollution. The UN is meeting in hopes of signing a deal that could cut down on carbon emissions worldwide.

Just to be clear, we are talking about cars and our dependence on oil, but we’re also talking about things like coal power. Climate change is a pressing issue now because there are nations, chief among them China, that are actively pumping carbon into the environment on an enormous scale. According to the Global Carbon Project, China alone accounts for 28% of the world’s total carbon emissions. And they increased their emissions last year by 4.2%, which increased global emissions worldwide, by 2.3%. In other words, year over year – the situation is getting worse, not better. The ultimate goal of this meeting is to establish a plan to reduce these emissions. And one way to do that – is switching away from coal and fossil fuels, to cleaner forms of energy; a switch that some economists and ecologists now argue could also help developing countries, like China, save money in the long run.

They also argue that it would benefit not just the environment, but also the health of the people in those nations. The argument against committing to cleaner energy is that it requires an enormous initial investment and could potentially slow down economic progress. The problem is that the very nations that need economic progress most, are also the nations that emit the most carbon. It’s a catch-22, and a large part of why an agreement still hasn’t been reached. To find out more about what’s going on in China, check out our video on the conflict between China and the Tibetan Independence movement. Or watch our other video on How Powerful China really is. Remember we upload new videos five days a week, so please subscribe..