> For the complete documentation index, see [llms.txt](https://arda-index.gitbook.io/arda-taking-crypto-beyond-economics/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://arda-index.gitbook.io/arda-taking-crypto-beyond-economics/mechanisms/the-arda-index/climate.md).

# Climate

The climate index input to the Arda Index is the [<mark style="color:green;">**Climate Change Performance Index**</mark>](https://ccpi.org/), a monitoring tool run by [<mark style="color:green;">**Germanwatch**</mark>](https://www.germanwatch.org/en)<mark style="color:green;">,</mark> an independent development, environmental, and human rights non-profit.

The CCPI evaluates 59 countries and the European Union, which together generate 90%+ of global greenhouse gas emissions. Using standardized criteria, the CCPI looks at four categories, with 14 indicators: **Greenhouse Gas Emissions** (40% of the overall score), **Renewable Energy** (20%), **Energy Use** (20%), and **Climate Policy** (20%).

This differs from most indicators in that it tracks **concrete** **actions** taken (implemented policy and its direct outcomes) rather than the final long-term impact (changes in the temperature of the planet or sea levels). We took this decision in this model's initial design because measurable climate changes will likely occur along long timelines.&#x20;