Entheogens and ecological awareness

I picked up the book Visionary Plant Consciousness and I have to recommend to everyone. It's a collection of talks, dialogues and discussions from the annual Bioneers environmental conference that specifically deal with entheogens and their central significance to the environmental movement. The team-ups and trialogues between visionaries are rare and amazing:
You have Paul Stamets with Kat Harrison with Dale Pendell.
There's Wade Davis with Terence and Dennis McKenna.
Other unexpected groupings include Charles Grob, Alex Grey, Andrew Weil, Michael Pollan, Luis Edwardo Luna, Jeremy Narby and peyote shamans and social activists.
Plus it closes with powerful piece on the War on Drugs' harm not only to society but it devastating impact on ecosystems.