Anthony Watts has given space to a guest who's written a primer on how to ignore data and influence people. Anthony could have written it himself. His blog is a rather good example of how to ignore data and influence people.
- Ad hominems
- Make up stuff
- Publish cartoons by Josh
- Tell fibs about peer-reviewed papers
- Appeal to the conservative fear factor
- Manufacture wild conspiracy theories
In this case, Wotts covers it very well.