Science, climate change and controversy
It's inevitable: as science progresses, controversy happens. But sometimes, the public sees controversy where none exists. How to remedy that?

By GrrlScientist, theguardian.com, Wednesday 11 March 2015

"Science is often thought of as simply a collection of facts which has been handed down to us by some great authority in the past", says meteorologist Paul Williams, a Royal Society university research fellow at the University of Reading.

"But of course, the reality is a lot more complicated than that."

Science is a human endeavour that is built upon a constantly-growing knowledge base. As our knowledge increases, we gain greater insight into the world around us, we improve existing technologies and develop new ones that generate more new knowledge. It is this struggle to incorporate what was known and what is now known that creates controversy.

Take, for example, climate change. Climate is defined as the average pattern of variations in temperature, humidity, wind, precipitation, and other meteorological variables within a specific region over extended periods of time. Thus, climate change is when the patterns of these variables deviates away from average for extended periods of time.

"The fact that the climate can change was once very controversial amongst the scientific community, and of course, it still is controversial today -- not in the scientific community anymore but amongst the general public", notes Dr Williams.

Despite public controversy, there is evidence all around us demonstrating that climate is, indeed, changing, and these changes can be quite dramatic. One such lesson comes from the "Parallel Roads" of Glen Roy. These are three parallel terraces that resemble man-made roads inside a valley in the Scottish highlands.

"Charles Darwin came here in 1838, fresh from his voyage with the Beagle to South America, where he was sure he'd seen similar features along the hillsides, which had shell sands on them, which he, I think, correctly interpreted as having been beaches that had lain at sea level", says geoscientist Geoffrey Boulton, a Regius Professor Emeritus at the University of Edinburgh in Scotland.

"[Darwin] came here and was convinced he was seeing the same thing. Indeed, he published a paper in the Royal Society's Philosophical Transactions saying exactly that in 1839."

Despite having accurate data to work with, Darwin came to the wrong conclusion in this particular case. As we now know, these terraces were shorelines of an ancient lake that formed behind a glacial dam after the last great ice age. The lake itself only existed for 1,000 years or so, but even this short lifespan was enough to make an indelible mark on the landscape.

And scientific publishing played a critical role in formally correcting Darwin's mistake in the scientific record.

In this video, Professor Boulton and Dr Williams explore "the consensus gap" that exists between the scientific community and the public, why accurate data are critical to the scientific record, and why "science has to be an open public enterprise rather than one contained behind closed laboratory doors."