Airport pollution is not “devastating” for cities. Studies show that particulates, etc., are higher near airports but still within legal limits.
California HSR, by contrast, would have been a CO2 disaster: https://www.citylab.com/transportation/2011/11/how-green-hig.... It would need to have 10 million riders per year to break even in terms of CO2 footprint. The SF-LA flight traffic is just a third of that.
California HSR, by contrast, would have been a CO2 disaster: https://www.citylab.com/transportation/2011/11/how-green-hig.... It would need to have 10 million riders per year to break even in terms of CO2 footprint. The SF-LA flight traffic is just a third of that.