Whenever I mark ore for mining with the construction bots, it seems that they generate excessive amounts of pollution as they mine the ores. I went from a relatively low-pollution base before mining to a base generating over 10k pollution a minute and a cloud dozens of times the size of my base just from mining with these bots. Initially, I was confused, so I used a time warp mod to run a few tests over time and, indeed, these bots appear to generate tons of pollution when mining. Is this intended or not? Just confused.