At a scout centre in south east London, hundreds of potted Christmas trees stand ready for fostering over the festive period. With a rise in the popularity of artificial trees for environmental reasons, Londoners who prefer a real Christmas tree can be equally sustainable. London Christmas Tree Rental is one such company offering customers an eco-FIRiendly alternative. Instead of throwing away their tree in January, they can instead return it - having watered it in its pot over the festive season - to the rental firm which will look after it until the following year. IMAGES AND SOUNDBITES