caroline lucas
'It is more important than ever that we cherish their contribution.'
Green MP urges worried backbenchers to back her plan for second vote.
Environment secretary Michael Gove is under pressure to take action.
Activists have spent their summer fighting fracking.
Experts says green energy is now more affordable.
Caroline Lucas has issued a rallying cry for the public to put pressure on the Government to tackle air pollution
Minister said Green MP was 'lacking humanity' after she raised issue.
Greens co-leader wants the Commons to be more accessible.
She later apologised for any offence caused...to dinosaurs.
Campaigners are not convinced by his appointment.