I suggest because such a cityscape implies a vision where we solve all environmental problems with tech. Whether we can do that or not is a moot point, because

I suggest because such a cityscape implies a vision where we solve all environmental problems with tech. Whether we can do that or not is a moot point, because - from the opponents view point - 1. numerous historical attempts to solve things with tech have led to more problems down the line 2. "We'll solve it with tech" has also been used as an empty promise and excuse by those with vested interests who want to continue the status quo