What is the Gini Coefficient? How Can We Track Equity in Georgia Climate Solutions?
In addition to understanding where specific climate solutions are scaling, the Solutions tracker examines markers of equity in comparison to the prevalence of each solution. Markers of equity matter because they recognize that not everyone starts from the same place and that some of us require adjustments to imbalances, rather than simply providing equal resources. These markers include:
- The Council on Environmental Quality’s 2024 Climate & Economic Justice Screening Tool data (CEQ CEJST).
- Median Household Income by county
- Percentage of urban area by county
The Tracker also provides a Gini coefficient for each solution. The Gini coefficient measures inequality within a group or country. It ranges from 0 to 1, where 0 means complete equality (everyone shares the benefits equally) and 1 means complete inequality (one person has all the benefits, and everyone else has none). A lower Gini coefficient suggests a more equal distribution of benefits, while a higher one indicates greater inequality.
Where Does the Data Come From?
These interactive maps, developed by leading researchers from the Climate and Energy Policy Lab in the Georgia Tech School of Public Policy, are based on publicly available data. Sources include:
- The U.S. Energy Information Administration
- The United States Department of Agriculture’s (USDA) Forest Service Geospatial Technology and Applications Center
- The USDA Census of Agriculture
- The U.S. Census Bureau
- The National Renewable Energy Laboratory
A complete list of data sources is coming to the Climate and Energy Policy Lab website. The Drawdown Georgia Solutions Tracker is updated annually.