ENVIROSAT: a vehicle for examining the options for Earth observations in the 1990s

The authors argue that, in considering the options for Earth observations in the 1990s, the fundamental issue for the US is whether there is a national interest in the supply of land remote sensing data. It is further argued that, if there is a national interest, then ENVIROSAT may be the most effective way to assure the supply of data. Finally, it is suggested that, if there is not a national interest in the supply of land remote-sensing data, then disengagement (i.e. leaving the field free for entrepreneurial entry, by rescinding Public Law 98-365) or tapping foreign supplies may be the most effective options