New series 1/8. Spring Surprises. Climate change caused by greenhouse gases and other emissions is now bringing spring much earlier to the British Isles.
Jeremy Bristow examines the impact this is having on some of our most familiar native plants, birds and butterflies. Greattits, red admiral butterflies and chiffchaffs are all affected in different ways and, as Bristow discovers, we can play a part in recording their responses to a warming climate.
Producer Brett Westwood Repeated tomorrow at 11am