Years it took for human #population to grow from 1 billion to 2 billion: 123
Years it took to grow from 6 billion to 7 billion: 12
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
Years it took for human #population to grow from 1 billion to 2 billion: 123
Years it took to grow from 6 billion to 7 billion: 12