Jonathan Bartley, co-leader of the Green Party, tells BBC Politics Midlands that money spent on HS2 would be better used on local transport projects.
Watch the full interview on BBC One from 10:00 on Sunday and catch up with past episodes of the podcast on BBC Sounds.
Also joining presenter Elizabeth Glinka this week is Walsall North Conservative MP Eddie Hughes and the Labour MP for Birmingham Edgbaston Preet Gill.
The co-leaders of the Green Party of England and Wales give ave a joint virtual conference speech to members
As the parties try to get their campaign messages across to voters, Labour's Jonathan Ashworth apologised after criticising Jeremy Corbyn in a secret recording.
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Election 2019: A look back at the last seven days of campaigning.
Green Party co-leader Jonathan Bartley answered caller's questions ahead of the General Election
Green Party co-leader Jonathan Bartley says the climate crisis needs to be addressed as soon as possible.
Green Party co-leader Jonathan Bartley says his party is "ready to remain and transform everything" and called its green New Deal the most "ambitious in the world"
The new role would allocate the £100bn per year they have pledged for tackling the "climate emergency".
A Green Party co-leader has announced he is to stand for a London seat.Copyright: PA Media
Jonathan Bartley, will contest the seat of Dulwich and West Norwood.
The Greens launched their election campaign this morning and pledged to borrow £100bn a year for a decade and raise corporation tax by 5% to help rid the UK of fossil fuels to make the country carbon neutral by 2030.
Mr Bartley concedes it's a lot of money to borrow but insists it would pay off in the long run.
The other candidates who have declared they will also stand are Labour's Helen Hayes and 23-year-old Ade Fatukasi for the Liberal Democrats.
The local Conservative constituency office said it was considering three local candidates who would like to represent Dulwich and West Norwood.
The Brexit Party has not made any announcement yet locally but said it would be fielding 600 candidates across the country.