Ken Livingstone stated his belief that Scotland has the power to be at the forefront of sustainable development during a visit to Glasgow.
Speaking at a sustainability conference, he made particular reference to the introduction of electric buses throughout Scotland, a project he had intended to launch in London had he been elected in May.
Mr Livingstone is now keen for officials in Scotland to make the breakthrough he hoped to do himself before losing out to Boris Johnson.
He said: "The Scottish Parliament could introduce a properly regulated bus system and bring it under one structure.
"I had the bus manufacturers lining up to talk to me about introducing electric fleets in London.
"They (manufacturers) desperately want one big city or country the size of Scotland to go down this route.
"Once you've done it they will start to spread, but you need someone to make the breakthrough."
Mr Livingstone was at Glasgow Royal Concert Hall to deliver a keynote speech at a conference on low-carbon built environment and infrastructure.