Here's a sad billboard in Ethiopia urging adults to consider the effects of too many children.
Here are some worrying statistics concerning overpopulation.
If trends continue, by 2025, 1.8 billion people will be living with absolute water scaricty. And two thirds of the world population will begin to feel the effect.
Four countries; Libya, Saudi Arabia, UAE, and Yemen have hit peak water. That's 60 million people.
Six countries; Bahrain, Israel, Jordan, Kuwait, Oman, and Qatar have nearly hit peak water. That's 23 million people.
The number of overweight people (over 1 billion) is passed the number of malnourished people (about 800 million).
The Earth will have to produce 70% more food by 2050, to sustain the population - which is expected to have grown by 2.3 billion.
Developed nations consume 32 times the amount of resources developing countries consume. Developing countries take up the majority of the world's population.
1 barrel of oil costs in excess of 100 US dollars, 65 British pounds, and 75 euros.
Those aged 65 or more currently make up between 10-15% of the human population. This is expected to double by 2050. The elderly (who are passed working age) only consume resources, they do not produce, making this a major problem