how nature is coping with climate change. or summat like that.
did you know that in the last 50 years Hornbeam has come into leaf 27 days earlier than it used to and Ranunculus ficaria - the Lesser Celandine - is flowering 21 days earlier than 50 years ago? summer migrants are arriving earlier and staying longer.
for loads more info http://www.phenology.org.uk/
phenology - the study of ....