Any perceived or real bias does not affect what is written in "The CO2 Problem in 6 Easy Steps". (Perhaps in the responses to comments, but not the actual article.) And this was only a sidebar to my post, anyway.
Really. I imagine a month ago the global warming alarmists would have said no bias or error infected the GISS data, either.
The onus is now on the global warming crowd to go back through all their data sets and models to look for bias. They are the ones calling for massive societal changes. They need to show their science is airtight.
But they won't, because their science isn't. As was noted in another blog post on the GISS data, scientists take taxpayer money but often won't provide the source code for their modelling and adjustment. Until that happens, they have no credibility outside their echo chamber.