The current population of humans on the planet Earth in 2010 is currently estimated to be 6,865,500,000.
In 2009, the United Nations predicted that the population on earth would reach 7,000,000,000 in 2011.
The only time in recorded history that the population did not grow was during the Black Death around the year 1400.
It is currently projected that world population growth rate will decline, and the population on earth is expected to reach between 8 and 10.5 billion between the year 2040 and 2050.
About 6.1 billion people lived on the planet in 2000.
One out of every three people, more than 2 billion, live in just two countries: China and India.
The rapid increase in human population during the 20th century is a signal to some that the Earth is experiencing overpopulation.
Many scientists believe that the current population growth rate and resulting increase in usage of resources are linked to threats to the ecosystem, such as global warming, and pollution.
