For relatively modest amounts of sulfur dioxide injected into the atmosphere, you could easily cool Earth by 1% or more, if you want.
Nathan MyhrvoldElections, for their part, are typically popularity contests rather than measures of candidates' relative competency or effectiveness. Imagine if scientific truth were determined according to which scientist was most popular. To be successful, scientists would have to be charismatic and attractive - and human knowledge would suffer terribly.
Nathan MyhrvoldAmong modern occupations, only cult leaders and TV weathermen rival the technological visionary's ability to retain credibility despite all evidence to the contrary.
Nathan MyhrvoldIf you talk about sous-vide, then you have to talk about food safety, and microbiology, and heat.
Nathan Myhrvold