@malcircuit @artemist Additionally, greenhouse gasses from people transport only amount to maybe 15% of total greenhouse gas output.
High-speed rail in the US would take decades to build, even with full commitment.
Thusly, it would yield way faster results to do a radical change in power production and commercial trucking—switch power plants to renewables and nuclear and trucks to electric. Finaced by cutting military budget.
This would combine to a 50% reduction.