Well, the reason this blog has been silenced over the last week and a bit is that I've been working hard on the green taxes report that we released today. The press release, full report (PDF) and database, with values for different local authority areas, can be found at the TaxPayers' Alliance website. I also wrote up the report, with some context, for CentreRight.Com.
The response to the study has generally been incredibly positive. However, there have been a few challenges on the blogs and on the media. I've responded to Friends of the Earth and the Treasury at the TPA website and to some critiques on CentreRight.Com on that website.