Bob, yes, I fear I am straying into dangerous political grounds again,
but it's a basic litmus test question: Ask a self-described
"environmentalist" what he thinks of: 1) Nuclear power. 2) Space
access and development. If he's against both, then he almost
certainly has no real idea what he's talking about and isn't worth
wasting much of your time listening to.
(Only IMNSHO, no warranty included, all caveats apply, etc. etc.)
There are probably many other similar litmus test items for quickly
ferreting out the symptoms of "choosing to see the world as you wish
it were, rather than as it is", but those are two I'm aware of.
