Group 12 is comprised of 5 members: 1. PHAI MINEA 2. LAO SOKKEANG 3. OL KIMMEY 4. RITH CHHAINGIM 5. OSOTH RATANADAVID The group was asked 3 questions: 1. How risk assessment is used in environmental decision making and models/simulations that can estimate risks. 2. What is incorporated in a cost-benefit analysis and an example for a local issue. 3. The concerns about using cost-benefit analysis in environmental decisions related to probability, consequences, and costs of bad outcomes.

1. Group 12:
1. PHAI MINEA [Leader: 0966153104] (ID: 2119055)
2. LAO SOKKEANG (ID: 2119639)
3. OL KIMMEY (ID: 2120522)
4. RITH CHHAINGIM (ID: 2121245)
5. OSOTH RATANADAVID (ID: 2119875)

2. REVIEW QEUSTIONS
QUESTIONS (A):
1. How is risk assessment used in environmental decision making?
2. What is incorporated in a cost-benefit analysis? Develop a cost-benefit analysis for a
local issues.
3. What are some of the concern about the use of cost-benefit analysis in environmental
decision making?

3. ANSWER PART (A):
1. How is risk assessment used in environmental decision making?
Answer 1:
Environmental risk assessment is the use of facts and assumption to estimate the
probability of harm to human health or the environment that may result from particular
management decisions. An environmental risk assessment process provides
environmental decision makers with an orderly, clearly, stated, and consistent way to deal
with scientific issues. And then calculating the risk to humans of a particular activity,
chemical, technology, or policy is difficult, and several tools are used to help clarify the
risk. To estimate the risks associated with new technologies or policies for which there is
no established history, models must be used. In other situations, the impact of a new
policy initiative may be modeled using computer simulations.
2. What is incorporated in a cost-benefit analysis? Develop a cost-benefit analysis for a
local issues.
Answer 2:
The incorporated in cost-benefit analysis (Develop a cost-benefit analysis for a local
issues):
• Identification of the project to be evaluated.
• Determination of all impacts, favorable and unfavorable, present and
future on all society.
• Determination of the value of those impacts, either directly through
market values or indirectly through price estimates.
• Calculation of the net benefit, which is the total value of positive
impacts less the total value of negative impacts.
3. What are some of the concern about the use of cost-benefit analysis in environmental
decision making?
Answer 3:
The concern about the use of cost-benefit analysis in environmental decision making
are 3:

4. • The probability of bad outcome (The probability specifically defines in
mathematical terms how likely it is that a possible event will occur).
• The consequences of a bad outcome (The consequences of a bad
outcome resulting from the acceptance of a risk may be minor or
catastrophic).
• The cost of dealing with a bad outcome.