The Happy Planet Index (HPI), compiled by the New Economics Foundation (NEF), uses global data on life expectancy, experienced wellbeing and ecological footprint to calculate to which extent countries deliver long, happy and sustainable lives for their people. The report finds that the UK is less efficient than Jamaica and most Latin American nations at using environmental resources to create long and happy lives for its citizens; Costa Rica and Vietnam are the happiest countries in the world given their resource use. It demonstrates that good lives do not have to cost the Earth and that the countries where wellbeing is highest are not always the ones that have the biggest environmental impact. The third HPI report acknowledges that countries which do well on the HPI can still suffer many problems. Other indicators are also necessary to fully assess how societies are doing.