A 10-metre rig spitting flames into the air every hour was installed next to the House of Commons as Greenpeace highlighted their concerns on fracking.
The rig, complete with sound effects of drilling and lorries, was put up on the day of an enquiry (February 9) which launched to look into whether fracking should take place in Lancashire.
Shaking the walls around Parliament Square in Westminster , the rig was a call for government to consider the effects on the community if energy company Cuadrilla succeed in appealing against Lancashire County Council's decision to reject its fracking application.
Campaigner Hannah Martin, at the scene, said: "We are here to fight for the future of the English countryside.
"Ministers are pushing aside local democracy to bulldoze through their unpopular fracking plans.
"We have installed a life-like fracking rig and drill at Parliament Square to show them what people in Lancashire and beyond will have to endure if so-called Communities Minister Greg Clark forces fracking on a reluctant nation."
Mr Clark has made it clear he will have the final say on whether Cuadrilla will be allowed to frack in Lancashire and this could mean ignoring both the council and Planning Inspectorate on the decision.
Previously, he had been vocal in his support for the idea of local decision-making and said in 2011 that local councils should “wield real power.”
The Lancashire fracking debate
Fracking, or shale gas drilling, involves the breaking up of shale rock to release gas.
Cuadrilla, which is owned by companies based in Australia and the Cayman Islands, disputed the council decision at an enquiry in Blackpool in January, but the council stood by its decision and said it was "democracy in action".
Protesters at the demonstration pointed out their increased anger after a leaked letter from three cabinet ministers suggested that fracking applications could be taken out of local authorities' control altogether.
Jasber Singh, part of Frack Free Lancashire, said: "I have been involved with anti-fracking community groups in Lancashire for over two years and the number of groups keep increasing.
"That's because we are not going to gain anything from fracking apart from air, noise, land and water pollution that's bad for our health and the health of the climate."
The enquiry is due to continue in Parliament for several weeks before being passed onto Mr Clark to make a decision.