IPCC and the Peace prize - historic moment for scientists?

Congratulations to the IPCC (and to Al Gore, as well) for being award the Nobel Peace prize.

And I've got a question. Is this the first time that a group of scientists has been awarded the Peace prize for communicating their results to the world? (Linus Pauling won in 1962 - but that was for activism against nuclear testing (according to Wikipedia). He won the prize in Chemistry for his science.)

I don't think Doctors without Borders quite count as scientists - and there again, they use their scientific expertise specifically to help people.

Are there any other scientists or science-related groups that I've missed?

(Edit: I did miss one: an agricultural scientist who won the Peace prize in 1970.)