The Worldwatch Institute has produced a new report on metal production.
In 2008, more than 1.4 billion tons of metals were produced globally-double the quantity of the late 1970s and more than seven times as much as in 1950. Since the mid-point of the twentieth century, a cumulative 40 billion tons of metals have been produced. This figure includes aluminum, arsenic, cadmium, chromium, copper, gold, lead, mercury, nickel, and steel.