# Related Documents | Region Scorecard methodology
Source: https://greenpixie.com/docs/methodology/region-scorecard/related-documents

Standards, research, and sources referenced by the methodology.

## Greenpixie Methodologies [#greenpixie-methodologies]

* Greenpixie, [*Methodology for Cloud Emission Measurement*](/methodology/cloud).

## Statistical Methods [#statistical-methods]

* Jenks, G. F., *The Data Model Concept in Statistical Mapping*, International Yearbook of Cartography, 1967.

## Water [#water]

* Kuzma, S., Bierkens, M. F. P., Lakshman, S., Luo, T., Saccoccia, L., Sutanudjaja, E. H., and Van Beek, R., *Aqueduct 4.0: Updated Decision-Relevant Global Water Risk Indicators*, Technical Note, World Resources Institute, 2023.

## Cloud Provider Sources [#cloud-provider-sources]

* Amazon Web Services, *AWS Pricing Pages*, accessed August 2026.
* Google Cloud, *Google Cloud Pricing*, accessed August 2026.
* Microsoft Azure, *Azure Pricing*, accessed August 2026.