The GESI measures a country's ability to maintain environmental conditions that support human life and well-being for future generations, regardless of government structure. It incorporates these key components:

  1. Resource Depletion Rate: Measures how quickly a country is consuming non-renewable resources relative to their availability and replenishment rates.
  2. Carbon Footprint and Climate Impact: Tracks emissions, temperature anomalies, and climate adaptation measures.
  3. Biodiversity Preservation: Quantifies species loss rates, habitat protection, and ecosystem integrity.
  4. Water Security: Evaluates freshwater availability, quality, and management practices.
  5. Land Use Sustainability: Assesses soil health, deforestation rates, and land degradation.
  6. Pollution Levels: Measures air, water, and soil contamination using standardized metrics.
  7. Circular Economy Implementation: Evaluates waste management, recycling rates, and resource reuse.
  8. Renewable Energy Transition: Tracks the percentage of energy from renewable sources and investment in clean energy.

Calculation:

$GESI = (0.15×Resource) + (0.2×Climate) + (0.15×Biodiversity) + (0.15×Water) + (0.1×Land) + (0.1×Pollution) + (0.07×Circular) + (0.08×Energy)$

This weighted formula leverages objective, measurable indicators to output a number that emphasizes intergenerational equity.

Data sources include: