loading . . . India, China, Europe, and the United States are on very different population paths This chart tracks the UNâs latest demographic projections for four large populations: India, China, Europe, and the United States. Together, they account for about half of todayâs world population. https://ourworldindata.org/data-insights/india-china-europe-and-the-united-states-are-on-very-different-population-paths