A key part of the
MEDIATION project has been to identify the strengths and weaknesses of
different approaches for adaptation. The table below lists strengths
and weaknesses of an assessment of adaptation turning points.
A
strength is that the focus on conditions that society perceives as
undesirable helps to identify stakeholders, policy plans and the
spatial and temporal boundaries of the assessment. Starting the
assessment from an existing policy process facilitates the engagement
of actors and provide an well-communicable starting point. Yet a
comprehensive analysis of climate change impacts and possible
adaptation turning points may require putting this policy process in a
wider perspective, including the exploration of the various ways
stakeholders frame the issues to be addressed. Another strength is that
assessment of adaptation turning points allows for nesting adaptation
options within a longer time frame. The concept can also be used to
assess thresholds in taking adaptive action.
A
weakness is that policy goals are not always clearly defined,
especially with respect to potential impacts of climate change on
ecosystems. Turning points for engineered systems (like a coast
protected by dikes) are relatively well delimited by norms and
standards. For ecological systems it often is more difficult to
formulate thresholds. Thresholds that have been included in policy
(such as water temperature ranges) may ultimately not be indicative for
ecological success or failure (e.g. as in the case study for salmon on
the next page). In any case, a statement about whether an adaptation
turning point will be reached will always have to indicate clearly with
respect to which set of policy objectives and societal preferences.
Key strengths
Can synthesize available
information for the prioritization of research and adaptation planning.
Is
more policy-oriented and stakeholder motivated than typical
impact and vulnerability assessments. Actors define stakes
to be considered.
Is flexible in
considering a range of socialeconomic objectives.
Uses
scenarios not to predict the future, but to delineate
uncertainties.
Encourages discussion with
society about (un)acceptable change and definition of
critical indicator values. | Potential weaknesses
Focuses on existing management
objectives. Unknown impacts and new challenges may be overlooked.
Gains
complexity with multiple drivers where there is an indirect
link with climate change. At present only relatively simple
/ driver thresholds have been identified with sufficient certainty
for policy support.
Requires identification of
social-political thresholds that are often ill-defined.
Loses
simplicity for communication when thresholds are less-well
defined and when turning points have multiple drivers. |