Ah, Information is Beautiful, bringing the clarity that good data visualization provides: Climate Change: A Consensus Among Scientists? They took the numbers provided by petitionproject.org (“31,486 American scientists have signed this petition, including 9,029 with PhDs”), and attempted to put them in a meaningful context.
Our maths here is somewhat coarse. Some better data suggests the ‘consensus’ figure is around 97.5% of publishing climatologists and around 90% of all publishing scientists supporting the human-induced climate theory.
I also thought this part was interesting:
In fact, when you adjust the PetitionProject’s odd categorisation – they filed ‘chemical engineers’ as chemists and physical engineers as ‘physicists’ – the total number of engineers who signed the petition, by our reckoning, jumps to 49%.
Why so many engineers?
Good question. Ideas, anyone? (Disclaimer: My official job title includes the word “engineer.” And even the word “senior.” Though I’m not sure I’ve really earned either.)