Greens living in ivory towers now want to farm them too The idea that you can feed Manhattan with crops grown in a skyscraper is the craziest of my allies’ many miracle solutions

George Monbiot

No one is immune to it; in some respects it is the foundation of our lives. Magical thinking is a universal affliction. We see what we want to see, deny what we don’t. Confronted by uncomfortable facts, we burrow back into the darkness of our cherished beliefs. We will do almost anything – cheat, lie, stand for high office, go to war – to shut out challenges to the way we see the world.

I spend much of my time confronting one aspect of denial: the virulent repudiation of environmental constraints by those who admit no challenge to their vision of the world. But it pains me to report that I find myself at odds with other greens almost as often as I find myself fighting our common enemies. I’ve had bruising battles over a long series of miracle solutions supported by friends: liquid biofuels, hydrogen cars and planes, biochar plantations, solar electricity in the UK, scrappage payments, feed-in tariffs. But no green delusion is as crazy as the one I am about to explain. The idea itself might not interest you. But the insight it gives into the filtering techniques humans use is fascinating.