In this paper we ask, Can alternative dispute resolution (ADR) settle land
use disputes between developers and interest groups and still produce "envi
ronmentally-sound" decisions? We selected six Canadian environmental mediat
ion/negotiation cases in Ontario, where proposed residential developments w
ere perceived to threaten natural areas, and interviewed proponents, interv
enors and consultants after ADR resolution. We measured success in protecti
ng ecological integrity at each site through comparison with a hypothetical
"perfect" case. Process and outcome criteria tested how each agreement had
mitigated damage and maintained or enhanced ecological integrity. Five of
six cases successfully met an arbitrary minimum of 50% of both process and
outcome criteria. Cases involving the Ontario provincial government were mo
re successful than those with private developers, and environmental groups
relying on disinterested environmental principle were more successful than
residents' associations that were hampered by others' perceptions of "Not i
n My Backyard" (NIMBY) syndrome. Participation by parties hostile to or unf
amiliar with ADR hampered the process, and mediators were not perceived as
critical to success. Thus, whether parties can solve environmental problems
with ADR depends on their perspectives on environmental disputes, and stak
eholders must share information openly and indicate their desire for consen
sus-based decisions. Finally, stakeholders must have access to current scie
ntific information. Among its limitations, ADR is not guaranteed to resolve
a dispute, nor can it succeed without voluntary participation by all parti
es. Third, ADR is effective only when all stakeholders feel that negotiatio
n is useful. Finally, ADR is a reactionary, piecemeal process, and is there
fore inefficient in protecting natural areas in a regional context. (C) 200
1 Elsevier Science B.V. All rights reserved.