Tool: Managing Risk, Opportunities and Climate Change

This tool evaluates issue-specific risks or opportunities and the significant impact climate control brings to the planning process.

Step Guide

STEP
1

In multi-disciplinary workshops identify risks and associated hazards that could affect mine closure. Look at the terms used in risk assessments (p96) to determine the risk

STEP
2

Rate risks before mitigation by determining the level of impact in terms of likelihood (97) and consequence of occurrence (p98) (Tool: Closure Plan Documentation can help)

STEP
4

Devise appropriate closure activities to mitigate the identified risks considering appropriateness and feasibility

STEP
5

Rate risks post mitigation – mitigations should reduce risk rating

STEP
6

Refine closure costs to implement devised closure activities or process improvements

STEP
7

Implement actions

Climate change:

Climate change (p94)can affect many aspects of closure design. Conditions may become wetter than historically observed or subject to more extreme storm events. Higher temperatures and drier conditions can also affect the water balance or ice conditions.

Concerns include:

  • Design storm changes
  • Water balance changes
  • Baseflow conditions
  • Fires
  • Permafrost changes

Climate change can be addressed through a risk framework and conceptual modelling. Probabilities of climate change and their effects are assessed together with other risk factors, and appropriate mitigations are adopted based on risk level.

There are two main approaches: adapting (p94) or reacting to climate change. Incorporating adaption to climate change in design and risk evaluations is now standard practice and considered compatible with closure scenarios.