GENEVA, SWITZERLAND – The United Nations Wednesday called for concerted action to provide sustainable health, food and other basic services to the world’s growing population. The UN is gearing up for a number of activities to mark the day planet Earth will have 7 billion people, officially 31 October. We will have 10 billion by the end of the 21st century, the UN projects. But given the falling fertility rates in developed and a number of developing countries, notably China, the world’s population will then begin to fall, according to the UNFPA. The world’s population at the start of the 19th century was 1 billion.
The selection of the day on which we cross the magic 7 billion line is fairly arbitrary.
UNFPA, the United Nations Population Fund, “7 Billion Actions”