The Center for Biological Diversity’s Kelley Dennings joins us in this episode of the podcast to share what she’s learned about dematerializing and greening up the holidays.

Rebelling Against Black Friday Consumerism

Populating and Plundering the Universe
We’re running out of booty on planet Earth, so billionaires are racing to mine and populate the rest of the universe.

Too Much of a Good Thing: Richard Heinberg
“Once a species becomes powerful enough to take over a planet, then is it also intelligent enough to understand the limits to its own power?” This is a question posed in the new book, Power: Limits and Prospects for Human Survival.

Billionaires in Space
Are Jeff Bezos, Richard Branson and Elon Musk doing civilization a favor and advancing science? Are they preparing to colonize space like the Borg in Star Trek: The Next Generation? Or are they seeking status and boosting their egos – AND their carbon footprints – with expensive toys?

Overshoot: World’s Best Introduction
Everything your friends, family, colleagues, journalists and elected representatives need to know about Earth Overshoot Day.