At an event at Tate Modern, Sadiq Khan pledged to clean up London's act.
The first question she asked upon taking her new role in government reveals just how out-of-touch our politicians are with trusted science.
Coal is dirty, dangerous and bad for our environment, argues Guy Shrubsole.
Robin Brown meets the people and the politicians caught up in the collapse of Redcar's steel industry.
The party’s anti-austerity, anti-establishment message has been superseded by the new Labour leader.
The government's new nuclear power station is a white elephant that we simply don't need.
A new wearable and app would let us measure our daily carbon use and set ourselves targets. But would anyone use it?
Those early days - with the promise of being the greenest government ever - feel very far away indeed.
Jeremy Corbyn can achieve what Ed Miliband promised - but failed to deliver.
Climate change, as much as Isis, is driving Europe's migrant crisis, says Barry Gardiner.
In spite of Solar Impulse 2's problems, solar-powered flight is down but not out.
The Zombie PM
The doomed premiership of Theresa May