How can others not see it? I see a bunch of people, even on HN, pushing for lower emissions while rejecting remote work for whatever personal reason. I also see others wanting instead to force everybody into ultra high density living to avoid driving, while remote work cuts down on the biggest source of driving needs.
You do not need to go to "ultra high" density, à la Manhattan or Hong Kong.
Once you get to densities of Paris, Stockholm, Amsterdam, Munich, Brussels—in the 50 people per hectare (20 per acre) range—there are diminishing returns:
* https://transportgeography.org/contents/chapter4/environment...
I would not call any of those "ultra high" (though perhaps others would?).
I accept high density cities, but ultra high is misanthropic.