How many people live on planet earth?

But what is the maximum "power of the Earth to produce subsistence," and when will our numbers push the planet to its limit? More importantly, was Malthus' vision of the future correct? Earth's capacity. Many scientists think Earth has a maximum carrying capacity of 9 billion to 10 billion people. read more

The term "World Population" refers to the human population (the total number of humans currently living) of the world. 7 Billion (2011) According to the United Nations, world population reached 7 Billion on October 31, 2011. read more

] One such scientist, the eminent Harvard University sociobiologist Edward O. Wilson, bases his estimate on calculations of the Earth's available resources. read more