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Referenzen und Links zu Quellen

World Population

Population counter

World Population Density Map

U.S. Energy Information Administration: Annual Energy Outlook 2019

The biomass distribution on Earth

How much water is there on, in, and above the Earth?

Our world in data: population, health, food, energy, environment, technology, growth&inequality, work&life

World Energy Council: coal, oil, gas, hydropower, biomass, solar, geothermal, wind, marine, nuclear peat