Most of the time, a blog post arises from some random idea of mine, half processed into something that seems sufficiently coherent to discuss. The objective is to prompt discussion, not to decree from on high. As such, I am likely to frequently go somewhat beyond the position that can be rigorously defended, or not quite reach it.
I really encourage readers to leave a comment when they see a problem with an argument, know of evidence to the contrary, or can otherwise contribute to the collective understanding of myself and all the other readers. Of course, you can also comment with supporting arguments and evidence.
Almost all of the time, there is no editor or scrutineer on the short path from my brain to the web. As such, you should also feel free to point out things like grammatical errors, poor analogies, or anything else in my writing or thinking that strikes you as worthy of comment.
P.S. There is, of course, a flip side to putting out unfinished thoughts for scrutiny and discussion. Ultimately, I think such a process leads to a stronger overall understanding, and a better theoretical grounding from which to try to make progress on both academic issues and the development of responses to pressing current matters like climate change. As such, it is fair to consider posts on topics that have been long discussed to be reflective of my considered position on the issue at hand (considered well or poorly, you decide).