Conducting Environmental Impact Assessment in Developing Countries (United Nations University, 1999, 375 p.): 9. Emerging developments in EIA: 9.2 Cumulative effects assessment: 9.2.3 Conclusion

Conducting Environmental Impact Assessment in Developing Countries (United Nations University, 1999, 375 p.)

(introduction...)

Preface

Abbreviations

1. Introduction

1.1 The environmental movement

1.2 Tracing the history of environmental impact assessment

1.3 Changes in the perception of EIA

(introduction...)

1.3.1 EIA at the project level

1.3.2 From project level to regional EIA

1.3.3 Policy level strategic EIA

FURTHER READING

2. Introduction to EIA

2.1 What is EIA?

2.2 Who is involved in the EIA process?

2.3 When should the EIA be undertaken?

2.4 Effectiveness of EIA

(introduction...)

2.4.1 Legal regulations

2.4.2 Rational and open decision-making

2.4.3 Project EIA sustained by strategic EIA

2.4.4 Room for public participation

2.4.5 Independent review and central information

2.4.6 Scoping in EIA

2.4.7 Quality of the EIA

2.5 EIA and other environmental management tools

3. EIA process

3.1 Introduction

3.2 Principles in managing EIA

(introduction...)

3.2.1 Principle 1: Focus on the main issues

3.2.2 Principle 2: Involve the appropriate persons and groups

3.2.3 Principle 3: Link information to decisions about the project

3.2.4 Principle 4: Present clear options for the mitigation of impacts and for sound environmental management

3.2.5 Principle 5: Provide information in a form useful to the decision makers

3.3 Framework of environmental impacts

3.4 EIA process in tiers

(introduction...)

3.4.1 Screening

(introduction...)

3.4.1.1 Illustrations of screening

3.4.2 Scoping

3.4.3 The initial environmental examination

3.4.4 The detailed EIA study

(introduction...)

3.4.4.1 Prediction

3.4.4.2 Assessment

3.4.4.3 Mitigation

3.4.4.4 Evaluation

3.5 Resources needed for an EIA

3.6 Some illustrations of EIA processes in various countries

(introduction...)

3.6.1 EIA system in Indonesia

(introduction...)

3.6.1.1 Responsibility for AMDAL

3.6.1.2 Screening: determining which projects require AMDAL

3.6.1.3 AMDAL procedures

3.6.1.4 Permits and licenses

3.6.1.5 Public participation in AMDAL

3.6.2 EIA procedure and requirements in Malaysia

(introduction...)

3.6.2.1 Integrated project-planning concept

3.6.2.2 How is EIA processed and approved?

3.6.3 EIA in Canada

(introduction...)

3.6.3.1 The process

FURTHER READING

4. EIA methods

4.1 Introduction

4.2 Checklists

4.2.1 Descriptive checklists

(introduction...)

4.2.2 Weighted-scale checklists

4.2.3 Advantages of the checklist method

4.2.4 Limitations of the checklist method

4.3 Matrix

(introduction...)

4.3.1 Descriptive matrix

4.3.2 Symbolized matrix

4.3.3 Numeric and scaled matrices

4.3.3.1 Simple numeric matrix

4.3.3.2 Scaled matrices

4.3.4 The component interaction matrix

4.3.5 Advantages of the matrix approach

4.3.6 Limitations of the matrix approach

4.4 Networks

(introduction...)

4.4.1 Advantages of the network method

4.4.2 Limitations of the network method

4.5 Overlays

FURTHER READING

5. EIA tools

5.1 Impact prediction

(introduction...)

5.1.1 Application of methods to different levels of prediction

5.1.2 Informal modelling

(introduction...)

5.1.2.1 Approaches to informal modelling

5.1.3 Physical models

5.1.4 Mathematical models

5.1.5 Modelling procedure

5.1.6 Sensitivity analysis

5.1.7 Probabilistic modelling

5.1.8 Points to be considered when selecting a prediction model

5.1.9 Difficulties in prediction

5.1.10 Auditing of EIAs

(introduction...)

5.1.10.1 Auditing prediction in EIAs

5.1.10.2 Problems in conducting predictive techniques audit

5.1.11 Precision in prediction and decision resolution

5.2 Geographical information system

(introduction...)

5.2.1 Data overlay and analysis

5.2.2 Site impact prediction

5.2.3 Wider area impact prediction

5.2.4 Corridor analysis

5.2.5 Cumulative effects assessment and EA audits

5.2.6 Trend analysis

5.2.7 Predicting impacts in a real time environment

5.2.8 Continuous updating

5.2.9 Multi attribute tradeoff system (MATS)

5.2.10 Habitat analysis

5.2.11 Aesthetic analysis

5.2.12 Public consultation

5.2.13 Advantages of the GIS method

5.2.14 Limitations of the GIS method

5.3 Expert systems for EIA

(introduction...)

5.3.1 Artificial intelligence and expert systems

5.3.2 Basic concepts behind expert systems

FURTHER READING

6. Environmental management measures and monitoring

6.1 Introduction

6.2 Environmental management plan (EMP)

(introduction...)

6.2.1 Issues and mitigation measures

(introduction...)

6.2.1.1 Project siting

6.2.1.2 Plant construction and operation

6.2.2 Illustrations of guidelines for mitigation measures for specific projects

(introduction...)

6.2.2.1 Fertilizer industry

6.2.2.2 Oil and gas pipelines

6.2.2.3 Water resource projects

6.2.2.4 Infrastructure projects

6.2.3 Development of a green belt as a mitigation measure

6.3 Post-project monitoring, post-audit, and evaluation

FURTHER READING

7. EIA communication

7.1 Introduction

7.2 What is expected from the user of EIA findings?

7.3 Communication to the public

(introduction...)

7.3.1 Factors that may result in effective public participation

(introduction...)

7.3.1.1 Preplanning

7.3.1.2 Policy of the executing agency

7.3.1.3 Resources

7.3.1.4 Target groups

7.3.1.5 Effective communication

7.3.1.6 Techniques

7.3.1.7 Responsiveness

7.3.2 Overview of the roles of the public

7.3.3 Public participation techniques

(introduction...)

7.3.3.1 Media techniques

7.3.3.2 Research techniques

7.3.3.3 Political techniques

7.3.3.4 Structured group techniques

7.3.3.5 Large group meetings

7.3.3.6 Bureaucratic decentralization

7.3.3.7 Interveners

7.3.4 Implementing public participation

FURTHER READING

8. Writing and reviewing an EIA report

8.1 Writing an EIA report

(introduction...)

8.1.1 Guidelines for preparing EIA reports

8.1.2 Comparison of guidelines of suggested/required components of an EIA report

8.2 Review of an EIA report

(introduction...)

8.2.1 Purpose of the review

8.2.2 Information and expertise needed for review

8.2.3 Strategy of the review

8.2.4 Approach

(introduction...)

8.2.4.1 Independent analysis

8.2.4.2 Predetermined evaluation criteria

8.2.4.3 Ad hoc review

8.2.5 Specific document review criteria

8.3 Preparing terms of reference for consultants or contractors

(introduction...)

8.3.1 Checking out the consulting organization

8.3.2 Strategy for formulating TOR

FURTHER READING

9. Emerging developments in EIA

9.1 Introduction

9.2 Cumulative effects assessment

(introduction...)

9.2.1 Concepts and principles relevant to CEA

(introduction...)

9.2.1.1 Model of causality

9.2.1.2 Input-process-output model

9.2.1.3 Temporal and spatial accumulation

9.2.1.4 Control factors

9.2.2 Conceptual framework

(introduction...)

9.2.2.1 Sources of cumulative environmental change

9.2.2.2 Pathways of cumulative environmental change

9.2.2.3 Cumulative effects

9.2.3 Conclusion

9.3 Sectoral environmental assessment

(introduction...)

9.3.1 Need for SEA

9.3.2 Differences between project level EIA and SEA

9.3.3 Methodologies for SEA

9.3.4 Status of SEA

9.3.5 Effectiveness of SEA

9.4 Environmental risk assessments

9.4.1 What is environmental risk assessment?

9.4.2 Terminology associated with ERA

(introduction...)

9.4.2.1 Hazards and uncertainties

9.4.3 ERA and the project cycle

9.4.4 ERA builds upon EIA

9.4.5 Basic approach to ERA

9.4.6 Characterization of risk

9.4.7 Risk comparison

9.4.8 Quantitative risk assessments

9.4.9 Risk communication

9.4.10 Risk management

9.4.11 Guidelines for disaster management planning

(introduction...)

9.4.11.1 Specification

9.4.11.2 Plot plan

9.4.11.3 Hazardous area classification

9.4.11.4 P & I diagrams

9.4.11.5 Storage of inflammable liquids

9.4.11.6 Risk assessment

9.5 Environmental health impact assessment

(introduction...)

9.5.1 Need for EHIA

9.5.2 Potential methodologies and approaches for addressing health impacts

(introduction...)

9.5.2.1 Adapt EIA study activities

9.5.2.2 Integrate health impacts into EIA

9.5.2.3 Use a targeted approach

9.5.2.4 Probabilistic risk assessment

9.5.3 Proposed methodology

(introduction...)

9.5.3.1 Determining the need for health impact assessment

9.5.3.2 Identify health impacts

9.5.3.3 Prediction of health impacts

9.5.3.4 Interpreting health impacts

9.5.3.5 Mitigation, monitoring, and reporting

9.6 Social impact assessment

9.6.1 What is SIA? Why SIA?

9.6.2 Identifying social impact assessment variables

9.6.3 Combining social impact assessment variables, project/policy stage, and setting

9.6.4 Steps in the social impact assessment process

(introduction...)

9.6.4.1 Public involvement

9.6.4.2 Identification of alternatives

9.6.4.3 Baseline conditions

9.6.4.4 Scoping

9.6.4.5 Projection of estimated effects

9.6.4.6 Predicting response to impacts

9.6.4.7 Indirect and cumulative impacts

9.6.4.8 Change in alternatives

9.6.4.9 Mitigation

9.6.4.10 Monitoring

9.6.5 Principles for SIA

9.6.6 TOR for consultants

FURTHER READING

Annex 9.1: Case study for risk assessments

10. Case studies to illustrate environmental impact assessment studies

Case study 10.1 Tongonan Geothermal Power Plant, Leyte, Philippines

Case study 10.2 Accelerated Mahaweli Development Programme

Case study 10.3 Tin Smelter Project in Thailand

Case study 10.4 Thai National Fertilizer Corporation Project

Case study 10.5 Map Ta Phut Port Project

Case study 10.6 EIA at Work: A Hydroelectric Project in Indonesia

Case study 10.7 The Greater Cairo Wastewater Project

9.2.3 Conclusion

Cumulative environmental problems can be desegregated by distinguishing their sources, pathways, and effects. Application of the typology specific to each component provides a basis for identifying and analysing perturbations, mechanisms of accumulation, and temporally and spatially differentiated effects. The framework can provide guidance to conventional CEA practice characterized by multiple projects bound in time and space, as well as to innovative CEAs of temporally repetitive and spatially dispersed human actions of a non-project nature. Such CEAs can generate new information and insights about environmental changes too frequently deemed insignificant.

Table 9.4 Characterizing cumulative effects

Characteristics		Examples
Sources
	Action quantity	Single, multiple, global, cause unknown
	Action type	Similar or different, common or uncommon, human or natural, additions to or removal from environment
	Temporal characteristics	Historical, existing, or future; short, medium, or long term; low, moderate, or high frequency; continuity of actions over time
	Spatial characteristics	Local, regional or global; small or large scale; continuity of actions over space
	Proponents	Single or multiple; public or private
	Source connections	Connected, unconnected, uncertain connections
Pathways to the environment
	Environmental media	Groundwater, surface water, air, energy
	Degree of concentration	Concentrated or dispersed over time and space
	Degree of continuity	Continuous or discontinuous over time or space (e.g., time or space lags)
	Pathway connections	Connected pathways, unconnected pathways, uncertain connections across pathways
Environment
	System type	Number, type, components, structure, and function of ecological, social, economic, institutional and political systems
	Resources	Number, type and significance
	Significance	Number and type of valuable ecosystem and other ecological components
	State of environment	Healthy, impaired, or collapsed; stable or unstable; resilient or not resilient
	Environmental connections	Connected components, unconnected components, uncertain connections
Interactions
	Connection to sources	Connected, not connected, connections uncertain
	Strength of connections	Strongly connected, weakly connected
	Direction of connection	Direct, indirect, feedback
	Temporal distribution	Concentrated or dispersed; continuous or discontinuous distribution of effects
	Special distribution	Concentrated or dispersed; continuous or discontinuous distribution of effects
	Nature of connections	Additive or interactive, reversible or irreversible
	Significance of connections	Significant, insignificant, uncertain significance

There remain challenges to conduct a CEA focused on sources, pathways, and effects. Sources of cumulative environmental change that are non-project in nature are likely to involve numerous "proponents'', if they can even be identified.

The least understood of the three components of the framework is pathways of accumulation. The complexity of these pathways is evident in multiple routes, feedback loops, and processes that are interactive, synergistic, or involve compounding. Theoretical understanding and tools to identify, monitor, and analyse these pathways are not readily available.

Finally, while cumulative effects can be analysed using available information sources, empirical evidence is often scanty, and quantitative analyses of effects are hindered by insufficient data. CEA requires a temporal scan of long duration and geographic representation at various scales. The limited time span and local focus of many existing databases impede analyses at broader temporal and spatial scales. Rigorous analysis of cumulative effects requires building up the empirical base.

The field of CEA is still in its infancy, so there are few cases where CEAs for major projects have been completed. In general, thus, there is more agreement on the concept of CEA than there is on practical methodologies and techniques.