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The CLIMOOR experiment investigates the possible impact of climate change on an Atlantic upland moorland. The experiment uses automatic roof technology to warm experimental plots by 0.5–1 oC and reproduces drought conditions in other experimental areas (July to September annually). We have measured a range of key community characteristics and processes (ranging from plant diversity to rates of soil respiration) since the experiment began in 1998. The Climoor experiment is the second longest running climate change experiment in the UK and data from the experiment has been used in several modelling exercises.

See the pages Results from the Climoor site for examples of the research we have carried out at the site and Publications for a full back catalogue of publications from the UK Climoor site.

The site was originally established under a EU consortium project – called CLIMOOR - where replica manipulation experiments were built in six European countries. As well as our site in NE Wales, UK, there are identical sites in Denmark, the Netherlands, Sardinia (IT) and Hungary. There was also a site in Catalonia (ESP). Having replica experimental sites on heathlands across Europe allows a comparison across a geographical gradient as well as site-based climate change manipulations.

The IPCC fourth assessment report in 2007 - Climate Change 2007 – Impacts, Adaptation and Vulnerability  cites extensively from the Climoor and Vulcan publication list.


An automated roof at the UK Climoor site, with a view ofthe Clwydian mountain range in the distance. The sites also known as Clocaenog within several EU projects.


The replica experimental heathland sites across Europe; currently funded under the INCREASE EU project .