I have discovered the website below during lockdown and have been following the daily coronavirus statistics from around the world. But it also shows the global population, updating in real time (almost).
I always think the world's population is 7 billion, but it's actually 7.7 billion and you can work out that it won't take that long to get to 8 billion and then faster to get from 8 to 9 billion and on and on.
What number can the earth support? Realistically, what's to be done?
www.worldometers.com