Tonga

GDP (PPP) per capita (2015): 4,971.52 Int. Dollar Population (2015): 106,170 HDI (2015): 0.72
ND-GAIN Country Index rank 106
Score: 48.9
Trend:
down
Vulnerability 0.446
Readiness 0.424

The high vulnerability score and high readiness score of Tonga places it in the upper-right quadrant of the ND-GAIN Matrix. It is on the road to responding effectively to climate change, but the adaptation needs and urgency to act are greater. Tonga is the 69th most vulnerable country and the 78th least ready country.

ND-GAIN Ranking since 1995

Year 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015
Ranking
92
92
95
96
102
100
107
107
104
107
107
111
111
109
101
97
96
100
100
105
106
Denotes worst scores
Indicator 1996 to 2015 Score
Vulnerability
0.446
Food
0.615
Projected change of cereal yields
0.883
Projected population change
0.377
Food import dependency
-
Rural population
0.822
Agriculture capacity
0.647
Child malnutrition
0.347
Water
0.253
Projected change of annual runoff
-
Projected change of annual groundwater recharge
0.751
Fresh water withdrawal rate
-
Water dependency ratio
0
Dam capacity
-
Access to reliable drinking water
0.009
Health
0.325
Projected change of deaths from climate change induced diseases
0.091
Projected change in vector-borne diseases
0.112
Dependency on external resource for health services
0.675
Slum population
-
Medical staff
0.635
Access to improved sanitation facilities
0.110
Ecosystem Services
0.641
Projected change of biome distribution
-
Projected change of marine biodiversity
0.885
Natural capital dependency
1.000
Ecological footprint
0.413
Protected biome
0.103
Engagement in international environmental conventions
0.806
Human Habitat
0.583
Projected change of warm periods
0.474
Projected change of flood hazard
0.545
Urban concentration
-
Age dependency ratio
0.578
Quality of trade and transport infrastructure
-
Paved roads
0.736
Infrastructure
0.260
Projected change of hydropower generation capacity
-
Projected change of sea level rise impacts
0.127
Dependency on imported energy
-
Population living under 5m above sea level
0.312
Electricity access
0.051
Disaster preparedness
0.550
Methodology

ND-GAIN Country Index

Methodology The ND-GAIN Country Index, a project of the University of Notre Dame Global Adaptation Initiative (ND-GAIN), summarizes a country's vulnerability to climate change and other global challenges in combination with its readiness to improve resilience. It aims to help businesses and the public sector better prioritize investments for a more efficient response to the immediate global challenges ahead.

Notre Dame Global Adaptation Initiative
1400 E. Angela Blvd., Suite 117 - South Bend, IN 46617
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