“Uncertainty” in science: TOK and UN climate science report

Here’s a question to ask yourself and your students: what percentage of trained scientists have to accept that a knowledge claim has been proven before you yourself will consider it reasonable to accept it?  How many scientists have to be “certain” (that is, convinced)?  And the next, closely related, knowledge question is not about the scientists (and their degree of psychological conviction) but the knowledge claims themselves: how much certainty is necessary for scientific knowledge? Certainty of shared knowledge in the ...