La salvaguardia dell’ambiente       Deforestation areas appear in light-coloured linear features of relatively high temperatures, in this thermal image from ERS-2. Photo: Leicester University   Perché non è possibile avere conclusioni definitive con questi dati?     Envisat is a truly advanced Earth observation satellite with a unique combination of sensors that vastly improve the range and accuracy of scientific measurements of the atmosphere, oceans, land surface and ice. Its total range of capabilities far exceed those of any previous or planned Earth observation satellite. Release date: 15 Gennaio 2002