Dame Emma Thompson is an actor and writer with a long history of environmental activism with Greenpeace. In 2009, Thompson and three other members of Greenpeace UK bought land near the village of Sipson to deter the building of a third runway for Heathrow Airport as part of a campaign against climate change. In August 2014, Thompson and her daughter Gaia went on a Greenpeace "Save the Arctic" expedition to raise awareness of the dangers of drilling for oil.