In the past century the earth's human population has quadrupled, growing from 1.5 billion in 1900 to about 6 billion today. By 2050, it is estimated that the global population will reach 9 billion. In 1968, a young biologist named Paul Ehrlich wrote a best-selling book called The Population Bomb, which sparked an ongoing debate about the dangers of overpopulation. He argued that population growth was destroying the ecological systems necessary to sustain life. So just how worried should we be? Is population growth a problem or not? And if so, what should we do about it?

AUDIO ONLY

In this wide-ranging discussion with Peter Robinson, Bjorn Lomborg analyzes the Biden administration’s plan to address climate change, lauds a slew of new clean energy technologies that are coming in the next decade, and discusses the upsides—and the downsides—of migrating the world from a carbon-based economy to one based on electricity generated by clean energy sources.