'Only 47 buses went through the Green Bus Fund in the last round'published at 14:59 Greenwich Mean Time 7 December 2017
Green MSP Mark Ruskill says: "Only 47 buses went through the Green Bus Fund in the last round, and that is less than 1% of bus fleet in Scotland".
He asks the ministers if he will have to accelerate the purchase of new buses.
Mr Yousaf says: "We are going to have to make progress and at a quicker speed."
He praises the "ambitious and very welcome plans" of the bus companies.