>[!abstract] >A slow, exothermic oxidization reaction which is a manifestation of entropy. >[!quote] >"According to a 2016 report by the National Association of Corrosion Engineers, "The global cost of corrosion is estimated to be US$2.5 trillion a year, which is equivalent to 3.4 percent of the global Gross Domestic Product." > >The report earnestly continues, "By using available corrosion control practices, it is estimated that savings of between 15 and 35% of the cost of corrosion could be realized, i.e., between US$375 and $875 billion annually on a global basis." That’s the happy news. The hard news is what the engineers are admitting: even if every one of their best practices is deployed worldwide, corrosion will _still_ cost the world between 2.2 and 2.9 percent of global GDP—$1.6 to $2.1 trillion." ## References - Brand, S. (2023). Corrosion: rust never sleeps. *Maintenance of everything*. https://books.worksinprogress.co/book/maintenance-of-everything/vehicles/digression-3-corrosion-rust-never-sleeps/2