I probably wouldn't have that technology available right away, because in the real world it took us a while to really figure it out (and it's still not perfect), but I definitely agree that adding scrubbers to the game would be a great idea!
Some of that is possible. I may be wrong, but I think it's possible for more than one mint to be made, for instance. As for the ignoring laws, currently that isn't possible, but the criminal justice step on the road map would make it possible for people to break the law, and thus make law enforcement necessary.
I wouldn't want fall damage, hostile animals, or the possibility of dying in the game either. But I could see the use of having skill point reductions/burning through extra calories if the player is exposed to pollution. It would create an additional incentive to manage it carefully.
Also, in case you didn't know, the ecosystem overall is based on western North America. That's why there is the specific set of fauna. So lions wouldn't be an option (unless down the road they make one for Africa), and although bears could be an option, the world size is probably too small to support a population of bears.
I agree with the overcrowding, everything in my fields is overcrowded but they seem to grow just fine and I get a good yield, so pointless.
I think the fact that you have to do a little traveling to get the good spots is okay. I would agree that they need to loosen up the conditions for growth a little though. The collaboration in the game adds a level were sometimes more then one person has to do a certain job. So as a farmer you could just farm crops that are good in your area and someone else can do others. This obviously becomes easier as more people join a server and harder if it is just you and some friends. So ultimately, maybe this could be something that you can adjust on the server to ease up on the difficulty for less populated servers.
Not really sure about this one. Crop cycling would be interesting though. Get more crops in one area growing as well as give the real touch. There are crops that do reach the ground, maybe have a crop that can replenish that.
A greenhouse would be cool, with the way I plow huge fields would be a little weird to have a huge building. Sprinkler, however, would be AWESOME. A perfect solution to moister on crops in my opinion.
I think the tractor is just fine. With all of its attachments, you can literally bring up the heatmap, make it viewable in game. Plow that area and then sow that crop. Done, they grown and you can do in mass. Like all vehicles though I think it needs some work with control and operation.
Something I would add about farming that I brought up in the discord is that it is really hard to tell where you have planted a crop or not in the fields. This is because most of the crops are just little tiny ity bity stems when you plant them. So they are hard to see. Adding something to it would make it a lot easier to tell that something is planted in that square or not especially when you are using the sower on the tractor.
I will look into it, but there's a 90% chance I will forget about your request here. It may not be possible, but if it is: I suggest going to the official Eco discord. Post this question in the "law" section of their discord. Those people can make anything a law if it's possible.
I also have a section on my Eco server discord for laws, so check your discord if you have a public server.