The change from proof of work to sharding has been proposed as a way to improve the Ethereum network by reducing the amount of emissions and increasing the speed and scalability of the network. However, it is not clear that this change has improved the gas prices on the Ethereum network. The proof of work concept was originally designed to reduce emissions, not necessarily gas prices. To improve gas prices, Ethereum will need to implement sharding, which is a process of breaking up the Ethereum blockchain into smaller, more manageable pieces. This will enable the network to process more transactions faster, which will in turn reduce the cost of each transaction. Additionally, sharding will also help reduce the amount of emissions from the Ethereum network, further helping to reduce gas prices.