Former "New Scientist" correspondent Peter Hadfield said that scientists are not experts on every topic, as depicted by the character Brains in "Thunderbirds". Rather, they must specialize:In between Aaagard and Zylkowski, the first and last names on the petition, are an assortment of metallurgists, botanists, agronomists, organic chemists and so on. ... The vast majority of scientists who signed the petition have never studied climatology and don't do any research into it. It doesn't matter if you're a Ph.D. A Ph.D in metallurgy just makes you better at metallurgy. It does not transform you into some kind of expert in paleoclimatology. ... So the petition's suggestion that everyone with a degree in metallurgy or geophysics knows a lot about climate change, or is familiar with all the research that's been done, is patent crap.