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bryanlarsenlast Tuesday at 1:43 AM1 replyview on HN

We ran out of cheap pure copper a long time ago. Now we're producing copper out of ores that contain a very small proportion of copper. If the price goes up we'll produce copper from ores that contain an even smaller fraction of copper.

Copper is 60 ppm of the crust. As long as the price keeps going up, we'll never run out.


Replies

pfdietzlast Tuesday at 5:23 PM

Seafloor massive sulfides and manganese nodules also have significant amounts of copper.

But I would like to see improvements in copper recycling and in breeding of copper hyperaccumulator plants.