Global energy security relies heavily on exhaustible fossil fuels, whose use contributes significantly to global environmental problems. The recent unprecedented rise in oil prices and the threat of global warming highlight the urgent need for solutions to the energy and environment problem....

Life expectancy and income among the first countries to begin health transitions -- Which countries should be studied? -- A colonizer and the country colonized : Japan and Korea -- Very low income is not a barrier : Sri Lanka -- Two neighbors : Panama and Costa Rica -- Capitalism and communism,...