Using the One Aspect from last activity.
1. Determine the 3 most signiifcant impacts whether to Land, Air Water or People, using the standard Risk Assessment Matrix.
2. Explain why you consider each siginifcant - whether in terms of overall risks.damage or your organistion's contriution to it.
eg is it more significant - a regular contribution to the greatest environmental risk - global warming OR
a bigger contribution to smaller overall risks - polluting local river and killing fish.
3. Clearly the determination of significance rests on a lot of factors, some techical (eg above) some social - ie bad local headlines more importnat than calculating carbon footprint?
There are no universal rights and worngs, but you should be able to justify your decision.