Author: Miles Traer

Earth in Human Hands

“What if life isn’t something that happens *on* a planet, but is something that happens *to* a planet? What if the planet itself is alive?” Thus begins one of the many intriguing thought exercises in astrobiologist David Grinspoon’s new book, Earth in Human Hands (available Dec. 6, 2016). David has long been a friend of the show, in large part because he possesses a unique ability to bring the geologic imagination to life. His approach to the Anthropocene READ MORE

On the Precipice

Sometime in the near geological future, the landscape of life on earth as we know it will be transformed. It’s a mass extinction, and it’s only happened five times before in Earth’s history. There have been severe ice ages, perplexing loses of oxygen from our oceans, massive volcanic eruptions, meteor impacts. And now, we’re on the precipice of a sixth mass extinction… and it’s nothing like our planet has ever seen before. In Season 8’s final episode, producer Miles Traer dives into the sixth mass extinction: Are we in it? What can the previous mass extinctions teach us about READ MORE

Are we alone in the universe?

How did life begin on Earth? Curiously, scientists often search for the answer on other planets or moons in our solar system. After all, if we want to see whether our theories are right, we need to find another example of life somewhere. The search has taken us to some strange places seemingly frozen in time that give us hints to what Earth looked like billions of years ago when life first appeared in the geologic record: places like Mars that show evidence of fossil oceans, and places like Saturn’s moon, Enceladus, that show evidence of liquid water oceans containing organic READ MORE

Kim Stanley Robinson

Think of the Anthropocene as a science fiction thought experiment. We imagine future geologists looking back into the rock record, and trying to pinpoint when humans became the dominant geologic force. In many ways, science fiction is the perfect genre for exploring environmental issues – running out scenarios and “what ifs” to their extremes, and imagining how that world would look and feel. Award-winning science fiction author READ MORE

Will Allen, Urban Farmer

As cities around the world absorb more and more people, many urbanites want to reconnect with local food. This has led to the rise and spread of urban agriculture, and at the center of this movement is Will Allen, the founder and CEO of the nonprofit Growing Power. In today’s episode, Allen shares his life story, and discusses his passion for urban agriculture and food security, as well as how urban farming can strengthen community READ MORE

Sounds of Space

When we think of space, we typically think of beautiful images taken by powerful telescopes and interplanetary rovers. We think of the rings around Saturn; the giant red spot on Jupiter; or Martian rover selfies. But what does the surface of Mars sound like? What haunting melody should we expect from our Sun? And what do these sounds teach us about our cosmic neighborhood? On today’s episode, producer Miles Traer takes us READ MORE

Peak Phosphorous

Five things you may not know about phosphorus (but probably should): 1) It’s an essential element to all life on Earth – so it’s a critical ingredient for industrial fertilizers. 2) The vast majority of our phosphorus supply comes from phosphate rock, mined from geologic deposits. 3) Those geologic deposits are concentrated in just 5 countries, and Morocco alone controls 75% of known reserves. 4) The rate at which we’re consuming phosphorus is flat out unsustainable, to say the least. Experts warn that at current rates we may run out of it this century. 5) If all that weren’t READ MORE