It’s good to remind people that if they have a durable good that works fine, but its original manufacture was problematic, then it’s generally better to keep it as long as it’s doing its job. Even if the replacement is less problematic, it’s impossible to make anything without some kind of impact. Keeping durable goods going is better.

Important for this thread is that cast iron, at least right now, is usually made in coal fired furnaces. It’s an incredibly dirty industry. Now, if I need a pan I will tend to prefer cast iron and then use it forever. But don’t throw stuff away that’s perfectly functional.