Since the 1990s, the IPCC has used global level analyses of vulnerability to inform investment and action against the effects of climate change. […] If these global indicator analyses were deconstructed, climate decision-makers could use them as scoping studies rather than expect them to provide comprehensive and robust priorities for investment. Such scoping studies, if they are to be truly useful to climate decision-makers, need to be simplified and harmonised to isolate climate change specfic drivers. They can help target the locations for more in-depth local level analyses and should be supplemented by global level analyses of costs of climate action including technical, social and economic factors.

Statement Informing Climate Investment Priorities for Coastal Populations, by Adrien Comte, Linwood Pendleton, Emmanuelle Quillérou, Denis Bailly.


The global level application of vulnerability analyses for use in targeting climate-related investment include challenges :

  • a lack of harmonised conceptualisation of vulnerability and associated concepts, in particular impact and adaptive capacity,
  • added to an ever expanding number of variables used for such analyses, many of which are not available reliably at the global level, resulting in increased complexity of analysis and combination of very different metrics together which make it dif cult to isolate climate impacts on populations from other factors,
  • a lack of consideration of the costs of action in addition to climate vulnerability and impacts.


Considering the two-tiered approach developped for a better understanding of first local and then global analysis, in order to inform climate investment and action :

What kind of governance should be implemented on data collected by local authority, and also to track how are use the international transfer?

How International Organisation and also States should harmonised their norms for set of data ?

Could be introduce an international open source algorithm to prioritise local project of development ? Would it act in favor of developing countries or developed countries ?

Do you think we could introduce a blockchain-based system to allocate funds and control their efficiency by comparing the results of local action to expected impact on climate change ? (Blockchain would lead to better transparency and confidence in the use of International Transfer/Funds by tracking the spending, thus corruption would be avoided)

-> if needed, I can provide more informations about how blockchain system works, and its possible application.