That's... not really an argument? Electric aircraft are not economically viable until we account for externalities, so we're moving in the right direction.
Even after carbon tax, electric aircraft is still a technology in its infancy, compared to electric trains. Are you proposing that the government should spend billions of $$$ on an experimental technology when a proven alternative exists?
Even after carbon tax, electric aircraft is still a technology in its infancy, compared to electric trains. Are you proposing that the government should spend billions of $$$ on an experimental technology when a proven alternative exists?