1. Communication failures. If one person is thinking of impacts
of downhill skiing, while a second is concerned about
sunbathing on a beach, and a third is contemplating visiting
a natural area, is it any wonder that they come up with
differing evaluations of impacts and talk past each other?
2. Contradictory findings. The findings in the literature are
not consistent. Thus, for example, some authors lament the
destruction of natural areas through tourism whereas others
promote the potential of ecotourism to protect such areas.
Who is correct? Of course, both perspectives may be correct
but in different circumstances and to varying degrees. However,
as suggested above, little attempt appears to have been
made to ascertain what types of tourism in what type of
community and in what type of host-guest interaction give
rise to specific impacts.