The rest of the page is in metric too. > 244,000 metric tons They're not using pounds or the imperial ton (1 imperial or long ton is 1.016 metric tons). http

The rest of the page is in metric too. > 244,000 metric tons They're not using pounds or the imperial ton (1 imperial or long ton is 1.016 metric tons). https://en.wikipedia.org/wiki/Long_ton https://en.wikipedia.org/wiki/Long_ton Much of the rest of the site appears to also be metric. https://www.usgs.gov/faqs/how-much-silver-has-been-found-world https://www.usgs.gov/faqs/how-much-silver-has-been-found-wor... But not all - https://www.usgs.gov/faqs/how-large-lifetime-supply-minerals-average-person https://www.usgs.gov/faqs/how-large-lifetime-supply-minerals...