The world's population has gone above eight billion this morning.
The estimate is from the United Nations and other experts and means the population of the planet is now three times the size it was in 1950.
The UN says that although there are more people than ever before because we're living longer, fewer births are contributing to the slowest growth rate in decades.
It's projected India will surpass China as the world's most populous country in 2023.
Questions have been raised about whether we can cope with such a surge.
Padraig Carmody, Professor of Geography at Trinity College Dublin, thinks we can if resources are shared evenly;
"There's actually more obese people in the world than there is malnourished people so it's a question of distribution, so we actually have the resources to feed everyone."
