Looking out across the Weald from Newlands Corner this afternoon, we were treated to an amazing display of autumn colour from the trees of Blackheath, Albury Heath, The Hurtwood and Winterfold Forest. The diminishing daylight hours and falling temperatures in autumn induce trees to prepare for the winter. The shedding of their leaves is preceded by this spectacular show of colour. Green leaves turn to brilliant shades of yellow, orange and red, the result of transformations in leaf pigments. Trees take carbon dioxide from the air and use sunlight and water to turn it into oxygen and glucose. If you remember your biology lessons this is called photosynthesis. Chlorophyll helps photosynthesis happen and it is this chemical that gives leaves their green colour. [Click here for more] As the weak sun grew low in the sky over Newlands Corner, mist started to settle in the Weald giving us a view of the Surrey Hills that that has been enjoyed, largely unchanged, since the Norman conquest.