What processing did it undergo – was this polluting or energy intensive?
How far did it come – was there a lot of road transport involved? Stone from India and China does not count the carbon footprint until the stone reaches the UK port.
What effect will it have on those installing in and those using the building?
Does it require a lot of maintenance that may be environmentally damaging?
What will happen to it at the end of its useful life?
Does it have a unique positive function that over-rides its environmental impacts?
