way to do it without it causing earthquakes and lighting our drinking water on fire -- >> exactly. >> but i don't think that's hard. it requires more than $3 million fines. but clean fracking, the technology there is something which i think is achievable, and it's something that we really have to aim at, because nothing else can be afforded by the poor countries. unfortunately, china is already, by the end of this the year, producing twice the carbon dioxide of the united states. and it's growing very, very rapidly. so we have to come up with a technology, a technology that can be afforded by the developing world. >> professor richard muller of the berkly earth surface temperature at uc berkeley, thank you very much for joining us tonight and being populist enough in your approach to this position that you did it in an op-ed in "the new york times" that everybody could read. thank you, sir. look at those toys. insurance must be expensive.