You Ought to Have a Look is a feature from the Center for the Study of Science posted by Patrick J. Michaels and Paul C. (“Chip”) Knappenberger. While this section features all of the areas of interest that we are emphasizing, the prominence of the climate issue is driving a tremendous amount of web traffic. Here we post a few of the best in recent days, along with our color commentary.
Highlights from the various and sundry stories from across the web this week:
Over the weekend, a brouhaha erupted over the trustworthiness of the various compilations of the earth’s surface temperature history for the past century or so. This is a simmering cauldron that sporadically boils over with claims of pernicious data manipulation. This week’s eruption began with an article by Christopher Booker in the United Kingdom’s Telegraph headlined “Climategate, the Sequel: How We Are STILL Being Tricked with Flawed Data on Global Warming.” It went from local to global when it was featured prominently and for several days on the Drudge Report.
We immediately sought to temper those claims—in many cases, there are good reasons why the “raw” temperature observations are not the best representation of a location’s (natural) climate. These involve such issues as station moves, instrument changes, inconsistent observing times, and erroneous readings, as well as changes to the microclimate around the thermometer (e.g., fading paint, encroaching trees, spreading suburbia, etc.). To compile a reliable temperature record that best represents how the climate is changing, you need to mitigate as many of these confounding effects as much as possible. (Some of those effects are harder to remove than others.) Basically, the “raw” data need to be “adjusted.”
Concerns about the appropriateness of the methodology as well as the accuracy of the adjusted data is at the root of the simmering controversy.