The dunes are home to a variety of rare and endangered species of plants and animals, including a high concentration of fen orchid (or Liparis loeselii).
[4] The encroaching sand caused by intensive cattle grazing and declining temperature due to the Medieval Warm Period made habitation of the area difficult and by the 14th century most of the fields and buildings were unusable.
[7] In 1940, work commenced on a calcium carbide plant at Kenfig, built for the Ministry of Supply and operated by British Industrial Solvents, a subsidiary of the Distillers Company.
The Kenfig plant closed in 1966, overtaken by cheaper methods of producing acetylene from the catalytic cracking of oil and foreign competitors lower electricity costs.
In December 2008 Borg-Warner announced that the plant would finally close by mid-2010 with the loss of all 110 jobs at the site; a statement from the company blamed the economic downturn for the decision.