ENVIRONMENTAL activists occupied the Greenpeace headquarters in London yesterday, calling on the campaigning organisation to “up its game” during a climate change emergency.

Occupiers from the group Extinction Rebellion blew horns to announce their arrival into the building, bringing cake and flowers for the staff.

A statement was read out saying the activists loved and were inspired by Greenpeace but things needed to “be done differently.”

The statement added: “We all know that at present we are committing our younger generations to a life which will feel like hell on earth.

“Failure to do things differently, when everything is failing, can only be described as complicity.”

The group is organising a non-violent uprising against the “criminal inaction” by the government on the climate crisis, with a “declaration of rebellion” due to be made in Parliament Square on October 31.

Extinction Rebellion campaigner Simon Bramwell said: “This is an emergency. We are facing extinction and have little time to rise up to make our governments take the hard decisions needed to save us.

“The window for change is narrow. Action is needed urgently. It is a moral duty.”

Greenpeace UK spokesman Ben Stewart said the protesters were right to organise and make demands. “The collective response of society to climate change is deeply inadequate and the rise of the far right is terrifying,” he told the Star.

Mr Stewart said that, while Greenpeace staff and volunteers are proud of the work they do, they understand that their approach can be questioned.

“From our point of view, we feel we’re following the most effective strategies we have available to us,” he said, while adding that they had listened to Extinction Rebellion’s arguments and would give a quick response.