So the long awaited "merge" is anticipated with ETH. What's this mean technically for bitcoin? Nothing. What this means socially though is we're about to see the FUD cranked up to 11 about bitcoins energy use.
There are some great long-form articles here debunking a lot of the energy FUD although unfortunately most of our critics are lazy NPC's who won't read anything longer than a tweet.
Feel free to help add any additional resources to combat the impending attacks and be sure to push back, ask the attackers questions that exposes their ignorance and makes people inquisitive instead of combative.