What are the environmental impacts of Blockchain technology?

The environmental concerns raised by Blockchain technology, especially in Proof-of-Work (PoW) systems for mining, are significant because of the amount of energy consumed in the mining process, which can be addressed through other consensus methods that are more energy efficient than PoW, such as Proof-of-Stake (PoS), where energy consumption considerably drops compared to transaction validation in PoW frameworks. Developers can do things like developing better code, enabling renewable energy to be immediately used for mining activities, and engaging in environmentally friendly work on sustainability in the context of Blockchain.