The ten stumps (arrived) overnight, having been shipped by the artist, Angela Palmer, from a sustainable (forestry) in Ghana. Most had fallen (naturally), and the original trees would have been as tall as Nelson's (column).
But now the stumps are laid out (across) the square as an (artwork), albeit one with a purpose to show people what (exactly) has been lost through deforestation and also to (celebrate) the work in Ghana to promote (responsible) logging.
This though is only a (temporary) exhibition. The trees have to make another journey after this, to Copenhagen and the (forthcoming) UN climate change conference.
David Sillito, BBC News, Lon