I know that it’s a bit early but I’ve just seen lorries loaded with Christmas trees so it’s not long now. Here is my bioluminescent Christmas tree! The glowing decorations are made using the bioluminescent bacterium Photobacterium phosphoreum. The lights combined, use less than half a teaspoon of glycerol (a byproduct of the bio diesel industry) and some of the oxygen that the tree produces via photosynthesis. A symbol for a truly sustainable and symbiotic Christmas!