Being spread out means you’ll need cars, and it costs more in transportation cost to get things to you, and more things need to be built/consumed because it’ll

Being spread out means you’ll need cars, and it costs more in transportation cost to get things to you, and more things need to be built/consumed because it’ll be harder to share infrastructure of resources. Plus more heating and cooling costs as houses are bigger, and cannot share in heating/cooling. All of this equates to a much larger carbon footprint.