There are few of us who have all the answers, so when politicians speak as if they do, it’s easy to believe them. But when talking about issues of science, many GOP presidential candidates seem to speak with the confidence of truth without any reason to do so.

There are few of us who have all the answers, so when politicians speak as if they do, it’s easy to believe them. But when talking about issues of science, many GOP presidential candidates seem to speak with the confidence of truth without any reason to do so.

Evolution and embryonic stem cell research are frequent targets of political candidates. Those issues prompt such severe reactions on both sides largely because of their religious overtones and implications.

However, there are other frequently targeted matters of science that do not harbor such religious implications. Take, for instance, the matter of global warming.

GOP candidates largely discuss global warming with a matter of distrust and uncertainty.

Michelle Bachmann said, “The big thing we are working on now is the global warming hoax. It’s all voodoo, nonsense, hokum, a hoax.” Herman Cain declared it to be “poppycock.” Rick Perry proclaimed that “the science is not settled.” Ron Paul also called it a hoax.

In June, Mitt Romney rang in opposition to those candidates, saying at a town hall meeting, “I believe the world is getting warmer, and I believe that humans have contributed to that. It’s important for us to reduce our emissions of pollutants and greenhouse gases that may be significant contributors.”

But by earlier this month, Romney said “we don’t know what’s causing climate change on this planet.”

In fact, there is only one of the GOP candidates for president that seems to agree that global warming is even occurring — Jon Huntsman. Huntsman tweeted, “To be clear. I ...trust scientists on global warming. Call me crazy.”

And while there have been many who have called him crazy, it is sad that any candidate has to go out on a limb to support science when it should be the reverse — candidates should have to go out on a limb to explain why they deny science.

The average person doesn’t have the time or energy to collect and analyze the vast amount of data required to put together climate change information. But that is exactly the job of scientists.

Scientists at NASA’s Goddard Institute for Space Studies have determined that global temperatures have risen nearly .75 degrees Celsius since records began in 1880, and more than .50 since the late 1970s.

Need more evidence? The two warmest years in the last 130+ years have been since 2005. In case that’s not enough, six more years since 1998 are in a virtual tie for the third warmest years.

So the facts show the temperature is warming, and to counter Perry’s perspective, the science is rather settled. According to a 2009 study of climatologists who actively publish on climate change, 97 percent believe it is caused by humans. Academies of Science from 19 countries, including Canada, Italy, Japan, Russia, the United States, the United Kingdom and China all agree that global warming is caused by humans. A 2004 study found that not a single scientific paper since 1993 rejected that global warming is caused by humans.

There was some doubt to the issue, after a political firestorm erupted over “Climategate,” which skeptics claimed proved scientists had manipulated data to support global warming. Last week, a independent study of the data funded by the Koch Brothers (who are often cited as funding skeptical global warming studies) confirmed both the data and the conclusions — that global temperatures are rising.

While most GOP candidates are claiming the science is a lie, it seems there is no basis for such a claim. Call Jon Huntsman crazy for trusting scientists on global warming if you want, but it might be better to call him right.