*6.2. Future Work*

There are some limitations in presenting dynamics of the water supply development sector incorporated into ANEMI3 model on the global scale in the baseline ANEMI3 scenario. This is because surface water resources were enough to sustain the water demand when the available water resources consider the entire amount on Earth. This was also true for water quality, as it is averaged across the globe as well.

If the water supply development model is regionalized or adapted for use in a grid-based model, the effects of resource depletion and water quality effects on surface water supply could be explored in more detail. This is selected to be the major direction for future work. In doing this, location specific details with regards to water supply development could be considered, such as distribution costs for areas that are further away from coastlines in the case of desalination or the depth of regional aquifers for groundwater extraction costs.

**Author Contributions:** Conceptualization, S.P.S. and P.A.B.; software development and formal analysis, P.A.B.; writing—original draft preparation, S.P.S. and P.A.B.; writing—review and editing, S.P.S.; supervision, project administration and funding acquisition, S.P.S. Both authors have read and agreed to the published version of the manuscript.

**Funding:** This research has been funded by the Discovery Grant to the first author by the Natural Sciences and Engineering Research Council of Canada.

**Acknowledgments:** The authors are thankful for the constructive suggestions provided by the reviewers of the initial draft.

**Conflicts of Interest:** The authors declare no conflict of interest.
