I was reading about Ethereum 2.0 is the next step in the blockchain's move from a proof of work (PoW) consensus protocol to a proof of stake (PoS) algorithm. It is an integral part of Ethereum development to make the Blockchain more scalable, secure, and sustainable. The goal is to support thousands of transactions per second so that applications are faster and cheaper to use.
I believe that security is one of the main concerns, and the move to proof of stake should ensure that the protocol is more secure against all forms of attack. Last but not least, abandoning PoW is essential to limit the environmental effect of the Ethereum network. The grid, in its current state, requires a lot of computing power and electricity to remain sustainable.