The Green Party has urged voters to help it hold the next government to account over climate change - as its leader rolled into Cambridge on her chip-fat-fuelled battle bus.

Natalie Bennett was once again on the campaign trail in the city, which is one of her party's key target seats.

Standing in front an election battle bus which is fuelled by recycled chip fat, she said Green MPs were needed in Westminster to "make sure there's a strong voice for action from the UK".

"My message to the people of Britain today is: if you want action on climate change and if you care about protecting our shared environment for generations to come – vote Green. "By voting Green, you’ve got a chance to show whoever the next Prime Minister is just how much the fight against climate change matters to you."

Natalie Bennett, Green Party leader.