The uncanny parallels between alcohol Prohibition and the 'war on drugs'.
To what extent do metaphors shape and distort our understanding of reality? Co-written with Nick Barter.
Trees build themselves from the carbon, hydrogen and oxygen of thin air. Can we learn to copy their engineering secrets?
What does the Mount St. Helens ecosystem have in common with the human industrial system?
A reptile brain sits deep within us. How much of our behaviour comes from primal instinct?
Humanity's attitude toward nature. How did we get here? Where can we go from here?
What happens when you introduce 29 reindeer to an isolated island of untouched natural resources?
We need a "green tax shift". We should replace our current taxes with 'green taxes' on particular bad activities like environmental pollution.