Evaluating expertise is hard, and there are many different types of expertise. We're not going to show you how to evaluate expertise in any fine grained way. But we will show you how to sanity-check expertise, to see if they are known to have expertise in their area or more pseudo than science, more salesperson than professional.

https://www.youtube.com/watch?v=4GKpUNQNkLU

Questions to consider when evaluating expertise:

1. What kind of expertise does the person claim they have?

2. After looking up more information about this person, is that type of expertise exhibited in what you find?

Many experts will have a Wikipedia page. But sometimes there isn't a Wikipedia page for a particular individual or organization. In these cases, try using Google News or simply a Google search to find any information about them that you can.

• Wikipedia: https://www.wikipedia.org/
• Basic Google Search: https://www.google.com/
  • Do a Google search on your individual, and see if they have the type of expertise.
• Google News: https://news.google.com/
  • Search for other news articles written by or about the particular person

Next up: Warming claims (exercise 3)