a process which predicts the magnitude and importance of effects of a proposed activity on the environment, and on human health, and establishes conditions under which the activity may be undertaken. The results of the process may prevent the activity from proceeding if the potential effects are unacceptable. [fn]Source: (IISD 2005) from IISD website; http://www.iisd.org/sd/glossary.asp (updated: Aug 2005)[/fn]  [ALSO] An analysis to determine whether a proposed action will have a harmful impact on the environment, often comparing the impact of this proposed action with that of other alternatives and options. [fn]Source: (USAID 2005) from "USAID Biodiversity Primer"[/fn]