When did the Earth's population reach 2 billion?

:-) I did a calculation and we can go up to 200( two hundred) billion on our Earth. Earth surface is 510.1 million km² and for a family of 5 members I said to ... Apr 17, 2012 ... The population is expected to reach between 8 and 10.5 billion between the year 2040 and 2050. In May 2011, the United Nations increased the medium variant ... Mar 26, 2024 ... Humans – on the whole – now live longer, healthier lives. Plus, most of the world's population has been freed from hunting and gathering food to ... Human pop increasing 2 ppl a second, 80 million a year, all need food, water, shelter. Human population density massive problem in almost all environmental ... Jun 24, 2011 ... ▻ A dynamic global vegetation model is used to calculate the maximum carrying capacity in population of planet Earth. ▻ The natural limit ... Feb 12, 2025 ... Over the past 23 years, there were constantly more men than women living on the planet. Of the 8.06 billion people living on the Earth in 2023, ... Oct 30, 2024 ... How understanding past and present population patterns helps shape the future. The way humans are spread on planet Earth results from complex ... Nov 4, 2020 ... Water covers about 71% of the earth's surface. 326 million cubic miles of water on the planet; 97% of the earth's water is found in the oceans ( ... Apr 19, 2004 ... Planet EarthPlanet Earth. Population Campaigns. In 1952, India was the first country in the world to launch a mass media campaign to spread ... A dynamic global vegetation model is used to calculate the maximum carrying capacity in population of planet Earth.