When the global population reaches 9 billion people, how will the Earth cope? Explores the changing demographics of Earth over the next 40 years.
Reviews projections for future human population growth.
Thomas Malthus predicted that human population would outgrow its food supply. The Industrial Revolution has kept that from happening but for how long?
If people suddenly disappeared, very soon the planet would not resemble what it's like now. It also would not resemble what it was like before humans spread widely across the world.