Tuna, once the ‘chicken of the sea’, is now at grave risk from overfishing. Unless you prefer plankton stew to sushi, says John Sauven – it’s time to act

It’s easy to blame the poor for growing pressure on the world’s resources. But still the wealthy west takes the lion’s share, writes George Monbiot.

Mary Mellor poses some socialist questions for the Greens, and considers whether Green really is the new Red.

Julian Dobson looks at the failure of the current government to take seriously the need to drive down energy use.

Out into the countryside – where food should flourish but often doesn’t. So a co-operative of smallholders has started to live off the land. And, as close as you can get to wilderness in Wales, a remarkable woman sets an example. David Ransom reports.