Looking back one, two and five years ago today on Worldchanging:
2009 Graphic Series: Earthly Ideas: Polyculture
Check out Andy Lubershane's cartoon describing polyculture -- agriculture that mimics the diversity of natural ecosystems by allowing multiple crops and livestock to thrive in the same space...
2008 Imagine What Comes After Green
A collaborative challenge for you, our readers: imagine a world after 'green.' The idea is simple: share, in words, images or sounds, your idea for the end of some outdated aspect of contemporary society and its replacement with a better way of doing things, starting with the phrase, "Imagine no..."
2005 Terraforming Earth
James Cascio discusses a relatively brief article by Michael Behar entitled "How Earth-Scale Engineering Can Save the Planet"...
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