On June 6, 2021, the global population was 7,882,706,000 or close to 8 billion people. Without further action to limit population growth, the United Nations predicts there will be 8.5 billion people in 2030, 9.7 billion in 2050, and 10.9 billion in 2100. The rate of increase is, however, slowing and is projected to cease to grow by the end of the century.

Carbon emissions increase significantly with every additional person on earth the rich more than the poor — and increases the number of climate change victims – the poor more than the rich.

There is clearly a direct correlation between population and climate change.

In the fight against climate change, Project Drawdown ranks family planning as solution number 7. More than 10,000 scientists concur, signing, in 2019, the Scientists’ Warning of a Climate Emergency, in which they explicitly call for, among other things, “bold and drastic transformations” regarding economic and population policies, including making family planning services available to all. 

Speaking for more than 150 organizations, Dr. Jane Goodall, added her voice to the call for family planning, as she advocated for smaller families in the summer of 2019.


Data source: United Nations, Department of Economic and Social Affairs, Population Division (2019). World Population Prospects 2019. * excluding Australia and New Zealand



A Planet of 3 Billion


A Planet of 3 Billion

Tucker makes the case that the Earth’s ‘carrying capacity’ is limited to 3 billion humans, and that humanity’s century long binge has incurred an unsustainable ecological debt that must be paid down promptly, or else…


Urban humans

Urban humans

From space shortages to worsening climate change, cities are being forced to adapt at a pace never experienced before. How far can they push their limits, and make sure they leave no one behind?