Region leading the way on green transport - mayor

The mayor of the West Midlands says the region is "leading the way" on green public transport, after a fleet of new electric double decker buses was unveiled.
National Express West Midlands has rolled out 170 new Alexander Dennis Enviro 400 double-decker vehicles as part of a £95 million investment.
The firm now operates 329 electric buses in the region, meaning nearly a quarter of the fleet is now zero emissions.
"That means cleaner air, quieter streets and a more comfortable, reliable service for passengers," said mayor Richard Parker.
National Express West Midlands said each electric bus saves an average of 61 tonnes of carbon annually, reducing carbon emissions by almost 20,000 tonnes every year.
Bus strategy and commercial director Antony Goozee said the new buses would help the firm on its way towards a fully zero-emission fleet by 2030.
"These new clean, green double-decker buses are not just about improving efficiency and reducing our environmental impact - they also deliver a better experience for our passengers with quieter, smoother and more comfortable journeys," he added.

The operator has also completed a major infrastructure upgrade of its Yardley Wood depot, which dates back to 1938.
It has been modernised with a new advanced charging infrastructure "as part of ongoing efforts to future-proof its operations and ensure long-term sustainability in its services," said Mr Goozee.
He added that an electrification upgrade of the Perry Barr depot was also due to be completed in the next few weeks.
"Buses are the backbone of our network, with over half a million trips made in the region each day," said Mr Parker.
"That's why we continue to work closely with our bus operators to decarbonise public transport and support our green transport revolution for a cleaner and healthier West Midlands, while creating a network which works for everyone."
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