The future will be green, or not at all. This truth lies at the heart of humankind's most pressing challenge: to learn to live in harmony with the Earth on a genuinely sustainable basis.

Absolutely love the new campaign from the Optimum Population Trust: do your bit for addressing climate change by having fewer children - or even no children. The lifetime CO2 emissions of a UK citizen amount to 750 tonnes (the equivalent - apparently - of 620 return flights between London and New York), so the extra 10 million by which our population will rise between now and 2074 will, over their lifetimes, emit around 7½ billion tonnes of CO2..."births averted" is probably the most single most substantial and cost-effective intervention that governments could be using

If something is sustainable, it means we can go on doing it indefinitely. If it isn't, we can't

...deficit consumption is, in effect, drawing down on the capital entitlements of future generations

I think we will work our way towards a position that says that having more than two children is irresponsible.

Many ideas have struggled over the centuries to dominate the planet. Fascism. Communism. Democracy. Religion. But only one has achieved total supremacy. Its compulsive attractions rob its followers of reason and good sense. It has created unsustainable inequalities and threatened to tear apart the very fabric of society. More powerful than any religion, it has reached into every corner of the globe. It is consumerism

The 'Big Green Debate' has entered a very interesting stage. Once there was endless controversy; now there is near unanimity. Once there was universal political indifference; now the bandwagon is abrim with politicians in catch-up mode. Once the media were semi-detached: now they're really getting stuck in. And they need to be! Many people are confused and disempowered, and the role of the media in getting then informed and engaged is critical