Klaus
 Wed, 13 Dec 2017 22:40:11 +0100 
#^Bitcoin energy boom stamps down colossal carbon footprint | DW Environment | DW | 13.12.2017
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Few people use bitcoin to buy anything — but everyone pays for its environmental impact. Does mining the cryptocurrency actually consume more electricity than Ireland?
Camron B
 Thu, 14 Dec 2017 03:11:51 +0100 
Blockchain is a good idea but mining doesn't really work in the long run. Iota is a coin without conventional mining.