The new system will use 99.95% less energy, according to the Ethereum Foundation. To its proponents, the upgrade represents a major advantage as Ethereum seeks to surpass rival blockchain bitcoin.
      
    
    
      Software
 for the Ethereum blockchain has been overhauled, drastically reducing 
its energy usage, its inventor and co-founder tweeted on Thursday.
  read more 
Most
 blockchains devour large amounts of energy and have come under fire 
from environmentalists and some investors. Before the software upgrade, 
which is known as Merge, a single transaction on Ethereum used as much 
power as an average U.S. household uses in a week, according to 
researcher Digiconomist.
The
 overhaul has changed how transactions on the Ethereum blockchain occur 
and how ether tokens, the second-largest crypto coin after bitcoin, are 
created.  read more 
Ethereum
 has moved from a "proof of work" system, in which energy-hungry 
computers validate transactions by solving complex maths problems, to a 
"proof of stake" system, where individuals and companies act as 
validators, using their ether as collateral, to win newly created 
tokens.  read more 
Reuters
      
      
      
      
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