Countryfile: 23/11/2008
Countryfile
John Craven heads to Wytham Woods in Oxfordshire which is being used as a giant open air laboratory to study the effects of climate change.
Michaela Strachan lends a helping hand to the team at Westonbirt Arboretum, challenged with building a wooden barn in just one day and Adam Henson dons his walking boots to explore a new version of Alfred Wainwright's Pennine Walk.
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