World population
total number of living humans on Earth
The world's population is increasing all the time because more people are being born than are dying. The population of the world can be changed by other causes such as extinction level events, and natural and un-natural disasters (e.g., earthquakes, war). In January 2012, the United Nations said the Earth's population had reached 7 billion.
World population estimates from 1800 to 2100, based on UN 2010 projections (red, orange, green) and US Census Bureau historical estimates (black). According to the highest estimate, the world population may rise to 16 billion by 2100; according to the lowest estimate, it may decline to only 6 billion.
Related pagesEdit
Further readingEdit
- YAN Kun(2011). The tendency equation of the population and its limit value in the United Kingdom (Brief annotation of the connection equation(R)), Xi'an: Xi'an Modern Nonlinear Science Applying Institute.
