Case the First: The EPA determines that recreational fishing areas are “contaminated” with mercury (parts-per-billion). It places one million warning signs at a cost of $5000 each:
CATCH AND RELEASE ONLY
$500 FINE FOR CATCH AND KEEP
Up front cost of $5 billion. Net cost/10 year amortization… about $zero.
Case the Second: The EPA “regulates” mercury-“contaminated” recreational fishing areas. EPA-452/R-11-011, $9.6 billion estimated, with no direct cash back. $9.6 billion full is smaller than $5 billion zeroed if we consider “social benefits” like, ah, unknown hazards supporting potential summed paybacks of $100 billion.
HOT FLASH! Engagement of studies to have the sun shine at high noon 24/7 absent clouds, saving the Earth…are proposed to engage after $billions are spent up front on infrastructural test beds. DOI:10.1016/j.apenergy.2019.113734