Population Matters

<p>Formerly Optimum Population Trust, founded 1991</p>

<p>

A lot more detail in the following video by Alan Watt</p>

<p>

<a href="https://www.youtube.com/watch?v=nesw4jcWNfU">https://www.youtube.com/watch?v=nesw4jcWNfU</a></p>

<p>

See also:

https://asteroidday.org/page/crispin-tickell/</p>