Score four indicators against thresholds and weight them into one composite. A screening device for deciding where to look harder.
Fill in the fields and select Calculate.
Weights are 0.3 forest, 0.3 water, 0.2 rainfall, 0.2 temperature. Each indicator is flattened to 0, 0.5 or 1 at fixed thresholds, so a district just past a threshold scores the same as one far past it.