We are in 2017 an estimated 7,500 million people on the planet earth – three times the 2,500 million we were in 1950. According to projections made by UN, we will be 9,700 million in 2050 and 11,200 million at the end of the century. The growing world population and its natural desire for decent living conditions imply an enormous stress on our planet with global warming, depletion of resources, decreasing biodiversity, polluted and congested megacities and accumulation of waste. Can we handle this in the future?