We have been sounding the clarion call, warning the world that making kids, especially a lot of them, is a really bad idea. What we have been unable to describe, however, is exactly what this tiny orb in an almost unlimited galaxy will look like in a few centuries.
Author Alan Weisman described what the Earth might look like if we suddenly all disappeared, in his 2007 book, The World Without Us. In fact, it looks pretty good, if you can live without the image of The Peter Principle of all species (aka Homo sapiens) running through your imagination.

Author Alan Weisman
In his latest tome, Weisman projects just the opposite outcome. In Countdown he guesses what our planet will look like if we can’t keep our sperm contained.
The world’s human numbers grow by the population of Egypt each year. Reno, Nevada has a about 230,000 residents. That is approximately how much global population increases daily. Imagine building a city the size of Reno each and every day of the year, replete with energy sources, fresh water, sewage, and on and on, each day. To us, that is mind boggling. In the six years since Weisman wrote The World Without Us, our numbers have increased from 6.5 billion to 7.1 billion. In less than a century, that number will grow to more than 10 billion.
Imagine, 42 percent growth in nine decades. That’s an increase of two Chinas or nine United Stateses (if that’s how to say it). But enough of statistics. What does this mean in practical day-to-day-life terms?
Let’s start with water. “Ever-rising water demand, and climate change, are expected to boost water problems worldwide, especially in countries that are already experiencing shortages,” says Dina Fine Maron of Scientific American.
She goes on to point out, “Pakistan, one of the most water-stressed countries in the world, is on the brink of crisis. A recent report from the Asian Development Bank, highlighted by The Atlantic, states that the country’s emergency water reserve only has enough supply for 30 days – more than 30 times below the 1,000-day recommendation for similar countries.”
We must find a way to bring these numbers down or, as Weisman points out, eventually, drought, warfare, disease, or famine will. He traveled to 21 countries to speak with scientists, religious leaders, politicians, and others to research his book. While countries that adopt liberal family planning policies, like Iran – which offers voluntary state-funded birth control and education – seem to “get it,” other countries slog along, creating cities like Mumbai, India, where many of its 20 million people live under tarps strung between skyscrapers.
Weisman makes the case that our planet can provide adequate fresh air, water, and food for two billion people, which was our population in 1900. If we were to adopt China’s one-child policy, we could get back to that number in a century. “I don’t see us being able to change our lifestyles fast enough,” he opines. “The one thing we can do is contraception. We could change human impact more quickly that way, and give ourselves time to solve these other problems.”
As we are fond of saying, there are more than Enough of Us. The tools exist for us to turn things around. What is lacking is the self-awareness, the political courage, and the gumption to “Just say ‘No’”.