Climate Migration Risk Calculator

Community climate risk scoring from exposure and vulnerability.

Temperature rise (°C)

Sea level rise (m)

Elevation (m)

Distance from coast (km)

Population density (people/km²)

GDP per capita ($)

Water stress index (0-100)

Agricultural dependence (% GDP)

Tab to move between fields

Composite risk score (0-100)

34.1

Risk category (1-5)2

Hazard score (0-100)37.5

Exposure score (0-100)46.5

Vulnerability score (0-100)15.7

Adaptive capacity (0-100)79.4

Sensitivity score (0-100)25

Projected displacement (%)10.24%

How to Use This Calculator

Enter projected temperature rise (°C), sea level rise (m), community elevation (m), and distance from coast (km).
Set population density, GDP per capita, water stress index, and agricultural dependence (%).
Review Composite Risk Score (0–100) and Risk Category (1–5).
Scores above 60 indicate high to critical risk — use for community resilience and adaptation planning.

How the result changes with Temperature rise (°C)

Temperature rise (°C): Projected global mean temperature rise above pre-industrial levels.
Sea level rise (m): Projected sea level rise in metres.
Elevation (m): Community elevation above current sea level in metres.
Distance from coast (km): Distance from the nearest coastline in kilometres.
Population density (people/km²): Population density of the area.
GDP per capita ($): Local GDP per capita as a proxy for adaptive capacity.
Water stress index (0-100): Baseline water stress level (0 = no stress, 100 = extreme).
Agricultural dependence (% GDP): Percentage of local GDP from agriculture.

Composite risk score (0-100): Overall climate migration risk from IPCC hazard-exposure-vulnerability framework.
Risk category (1-5): 1=Low, 2=Moderate, 3=High, 4=Very High, 5=Critical.
Hazard score (0-100): Climate hazard intensity from temperature and sea level rise.
Exposure score (0-100): Physical exposure from geography and population density.
Vulnerability score (0-100): Vulnerability = sensitivity relative to adaptive capacity.
Adaptive capacity (0-100): Capacity to adapt, derived from GDP per capita.
Sensitivity score (0-100): Sensitivity from water stress and agricultural dependence.
Projected displacement (%): Estimated fraction of population at risk of climate-driven displacement.

Identify Input Parameters
4 parameters
Temperature rise (°C) = 2, Sea level rise (m) = 0.5, Elevation (m) = 10, Distance from coast (km) = 50 = 8 input(s) provided
Calculate Composite risk score
Composite risk score = (hazardScore * 0.35 + exposureScore * 0.35 + vulnerability * 0.3)
34.1 = 34.1
Calculate Risk category
2 = 2
Calculate Hazard score
Hazard score = tempHazard * 0.5 + slrHazard * 0.5
37.5 = 37.5