aphar

come again?

this is how I read you:
1.- scientific consensus is based on true scientific facts
2.- experts to be trusted
3. scientific consensus is relevant to positive statements

this is my responce:
1. - often not true
2. - never true
3. - scientific consensus from "1" is totally irrelevant to positive statements


then your main point:
"scientific consensus is only relevant to positive statements, not normative ones."

my point on that:
- scientific consensus from "1" is totally irrelevant to positive statements AND for normative ones.

However, scientific facts and conclusions coming from not massaged data are relevant for ANY science or policy related statements and conclusions - positive or normative