The alarms are going off everywhere. Oxfam's prediction of doubled food prices in a few decades (Comment, June 1) is based on analyses that are almost certainly too conservative.
If our world food system is falling to pieces now, just imagine what it'll be like in 20 or 30 years, when wildly irregular weather fluctuations are wreaking havoc with agricultural economies.
It's not a pretty picture, but it's one that most of the developed world's politicians seem determined to ignore.
Short-term thinking has brought us to the brink of disaster; now is the time when our species must learn to think in the long term, not just decades, but centuries and millennia.
Humanity's survival hangs in the balance.