Hundreds of people staged 'die-in' protests and a bike ride at Heathrow Airport on Saturday (October 1) against the airport's planned expansion and the new runway's impact on climate change.

Dozens of people took part in a flashmob inside Heathrow terminal two; the above video by Reclaim The Power shows airport users weaving through the protesters. Activists wore gas masks and lay on the floor as testimonies from communities affected by climate change were read.

Simultaneously, a bike ride with 150 riders circled the area, visiting Harmondsworth Detention Centre, obstructing traffic by circling the main roundabout on Bath Road, and dropping banners.

The protest was part of the action against the airport expansion, and was timed to coincide with a UN conference aiming to address the emissions impact of aviation.

The decision on whether airport expansion will take place in Heathrow or Gatwick is expected in October, with recent reports suggesting there is parliamentary support for the expansion of Heathrow.

Over 100 people staged a protest against the Heathrow Airport Expansion on Saturday (October 1)

Maya Adams, a spokesperson for Reclaim the Power, said: "Expanding airports is completely irresponsible and will bring us out of reach of our own targets to stop climate change. This problem isn't being caused by business or normal families taking a holiday, but a wealthy elite 'binge flying', often to second homes.

"Yet it's poorer countries that are the hardest hit by climate change, even though they have done the least to cause the problem. Expanding Heathrow is incompatible with creating a fairer and more equal world."

Ms Adams said: "When governments fail us, when international UN bodies that are meant to be dealing with these problems fail us, it's time for normal people to take a stand. People power has defeated this runway before, and it'll defeat it again.

"We can build new runways, or we can honour our legally binding climate commitments. We can't do both."

Businesses, residents and MPs are now pushing for the expansion decision to be made after David Cameron pushed it back several times, despite claiming it won't go ahead at Heathrow, with a memorable "no ifs, no buts" line.

A spokesperson for Heathrow Airport said: "The peaceful demonstration that took place Heathrow earlier today involved a small group of people, and the airport operated as normal throughout. Check-in and security were not affected.

"The action was part of a world-wide day of protest against aviation in general, which included protests at Gatwick as well."