You always find this kind of people in the crypto industry because of their hate of bitcoins, they will not gonna cease to look for its cons and disadvantage but they have failed because there wasn't anything they can find. that's why the last card they used is climate change and they said it causes by the crypto miners. These guys are way too hard on themselves because instead of accepting the fact that bitcoins can help countries like El Salvador, they are against it and always talk as if they know everything about the economy and global warming.