Interestingly, in recent years charges of [[bad science]] and [[junk science]] in public policy debates has led to '''false accusations of junk science''' becoming a [[propaganda ]] technique in its own.
In this case, the [[propagandatechnique]] technique may merely be an attempt to tack "bad science" as a negative [[buzzword]] onto whatever is being attacked. It may be effective because counter-arguments against these claims are long, complex and difficult to understand.
These accusations are typically levied by [[think tank]]s and [[public relations]] firms under order from [[tobacco]] companies and businesses that have something to gain by denial of [[global warming]].