If wealth was the inevitable result of hard work and enterprise, every woman in Africa would be a millionaire.

Those who consume far more resources than they require destroy the life chances of those whose survival depends upon consuming more.

There is enough oil in the ground to deep-fry the lot of us, and no obvious means to prevail upon governments and industry to leave it in the ground.

August 28th 2012. Remember that date. It marks the day when the world went raving mad.

Development which has no regard for whom or what it harms is not development. It is the opposite of progress, damaging the Earth's capacity to support us and the rest of its living systems.

Change arises from conviction. Stop voting in fear. Start voting for hope.

Until now I believed that the nation that has done most to sabotage a new climate change agreement was the United States. I was wrong. The real villain is Canada. Unless we can stop it, the harm done by Canada in December 2009 will outweigh a century of good works.