In the coming days, a baby will be born, most likely in the Asia-Pacific region, which is estimated to take the world's population to 7 billion.
Just 12 years ago it reached 6 billion, and in less than a decade its forecast to reach 8 billion.
Challenges loom ahead, not just for Katie Melua's lyrics, but for the sharing of the planet's land and resources.
But what can we do?
In microbiology, its known as exponential growth, when bacterial populations rocket dramatically, only to drop even more dramatically when their culture/nutrient source has been exhausted.
Perhaps we don't really care. Yes there is already huge competition and conflict for resources, but we won't be around for the more serious phase.