The changing earth : new scientific challenges for ESA's living planet programme / European Space Agency ; [editor: Bruce Battrick]. New scientific challenges for ESA's living planet programme Battrick, B., 1946- European Space Agency. European Space Research and Technology Centre. ESTEC. QB631 .C465 2006 550 MIC "July 2006." Noordwijk, the Netherlands : ESA Publications Division, ESTEC, c2006. c2006. 2006 Text 83 p. : http://www.esa.int/esaCP/SEM84CVHESE_index_0.html#a eng SP, 0379-6566 ; 1304 ESA SP ; 1304 Earth (Planet) Earth (Planet) Observations.