Witney MP David Cameron was due to visit a nature reserve in west Oxfordshire today as the Conservative Party calls for a “green revolution”.

The Tory Party leader will take a tour of Chimney Meadows Nature Reserve in Bampton at 2pm, before delivering a speech on the importance of biodiversity.

On Sunday, Mr Cameron will be starting the OX5 Run at Blenheim Palace in Woodstock before running the five-mile race.