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(Photograph) - Life line: Businessman and conservationist Patrick Roper contemplates the creation of a line of trees along the 0-degrees longitude Greenwich meridian, running from north Humberside through to France, Spain and Africa.

The University of Greenwich is to develop and manage the database recording where existing trees are and where new ones should be planted to establish the Millennium Tree Line, Mr Roper's brainchild, to mark the arrival of the third millennium.