METRO - the answer to all our prayers!

1.  Is multi-modal public transport, as we now have and with many more extensions planned, able to tackle the climate emergency better than having only bus and train?
2. If so, in what way and where is the independent research that brings the cast iron evidence that 'the more Metro the merrier'?
3. Is there proof that the three main modes of public transport (bus, tram, train) are the silver bullet to end road traffic congestion and pollution?
4. Does the second most expensive mode to construct after HS2, even so, lessens congestion and air pollution on our streets more effectively and with better value for money than electric buses directly on roads without the railway tracks having to be laid first, as is the case for trams?
5. Is there evidence that in the Walsall, Brum, Solihull corridor with three different kinds of buses and heavy rail, that a higher proportion of car commuters have permanently switched to trains and the three different kinds of buses?
6. Is there proof that spending the most money possible on grandiose transport projects like Metro and HS2 really do cut greenhouse gases in the short, medium and long term?
7. Can one safely say that more spending = more greenhouse gas emissions = fewer finite fossil fuels left in the ground = an uncomfortable future for our descendants?