3. Meaning of ``effect''---In this Act, unless the context otherwise
 requires, the term ``effect'' in relation to the use, development, or
 protection of natural and physical resources, or in relation to the
 environment, includes---
   (a) Any positive or adverse effect; and
   (b) Any temporary or permanent effect; and
   (c) Any past, present, or future effect; and
   (d) Any cumulative effect which arises over time or in combination
         with other effects---

 regardless of the scale, intensity, duration, or frequency of the
 effect, and also includes---
   (e) Any potential effect of high probability; and
   (f) Any potential effect of low probability which has a high potential
         impact.