When you warn people about the dangers of climate change, they call you a saint. When you explain what needs to be done to stop it, they call you a communist.

Nobody ever rioted for austerity.

Acknowledging our love for the living world does something that a library full of papers on sustainable development and ecosystem services cannot: it engages the imagination as well as the intellect. It inspires belief; and this is essential to the lasting success of any movement.

We would do well to ask why governments seem to find it so easy to raise the money required to wreck the biosphere, and so difficult to raise the money required to save it.

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

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.

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.