The Chia coin, often dubbed Green Bitcoin, is a project that promised to be a green alternative to all of the previous attempts at creating a coin that can be mined. Using the Proof of Space (PoS) technique requires massive storage space and Chia plotting can destroy modern SSDs in a matter of weeks. However, the green disputes have been questioned widely, and the Chia coin is not considered so much of a green alternative anymore. From its peak of $1645, it has tumbled down by over 80% of that and it is now worth around $281 at the time of writing.

As these prices have declined a lot, miners are starting to look away from the coin and have started to resell their hardware. This massive SSD and HDD reselling has started to obtain new funds for miners to move to another alternative cryptocurrency. In the awe of this, some miners are rebranding their worn-out and used SSDs as brand new, and selling them in China advertising new conditions. As Chia plotting tends to destroy SSDs, it is only a matter of time before these "brand new" drives start failing. After China, we could see other markets flooded with these drives as well, so it is always best to be cautious with your purchase.

The deployment of PoS (Proof of Stake) in Ethereum - called The Merge - has been a target for the development teams for a while now - and yet it still hasn't see the light of day. However, we have been slowly clambering towards it, and the Ethereum team has issued a blog post that places that transition "in the coming months", which likely means a hard PoS fork closer to years' end. Of course, the timeline still gives miners some time make up for hardware investment costs, but perhaps some of them (the smallest ones at least) will start offloading their graphics cards soon so as to enjoy the higher, current second-hand pricing for the latest and greatest GPUs.

The implementation of PoS in Ethereum is expected to reduce power consumption by a ridiculous 95.95% - from a country-sized 44.49 TWh with the current PoW (Proof of Work) technology down to a comparably measly 2.62 megawatt estimate. The Merge should therefore aid Ethereum in not only becoming greener, but also increasing network security, reducing likelihood of 51% attacks, and allowing for further operational scaling of the network. The more skeptical of you will say that miners will just choose another profitable coin to mine, but we have to consider Ethereum's market cap and current valuation - there is currently no other coin that seems to be able to absorb the hashing power currently devoted to Ethereum without crashing its profitability for any and everyone involved. We might be looking at a relatively healthy second-hand graphics card market by the end of the year. Wouldn't that be nice?