Nvidia is limiting the mining rates on their consumer GPUs.

As kornel mentions, it's a bit conflicting; while, yes, mining itself is a menace on society, limiting the use of hardware you supposedly already own is a serious breach of freedom. (And even though their CMPs are optimized for mining, there's nothing that would make them have less of an effect on the environment, as far as I can tell.)

Via this, I learned that Ethereum's mining scheme is ASIC-resistant, as opposed to Bitcoin's. Neat…?