WORLD FACTS AND FIGURES

Future Population Estimates (UNdata)

2015 [5] 2020 [5] 2050 [5] World Population: 7,302,186,263 7,674,832,568 9,149,984,240 Most Pop. Continent: Asia 4,528,586,470 Asia 4,731,661,415 Asia 5,347,582,086 Most Pop. Region: South-Central Asia 1,908,282,674 South-Central Asia 2,028,785,827 South-Central Asia 2,493,681,489 Most Pop. Country: China 1,395,998,248 China 1,431,155,162 India 1,613,799,950

It is believed that we humans began to inhabit the Earth from about 200,000 years ago, after evolving from other species, but the planet itself is about 4.5 billion years old. Life began to develop from about 3.5 billion years ago, and nowadays it is home to an estimated 100 million different living species. Living things can flourish safely on our planet due to it's magnetic field, which is possibly controlled by the core of the planet, and which blocks harmful radiation from outer space. Other major protection for all of Earth's many life forms comes from the ozone layer, which was developed by a combination of our earliest living organisms, along with the basic elements that were present before life began on Earth. Without the Earth's protective magnetic field, and it's ozone layer, we humans would not exist.