The life expectancy of Westerners is entering a zone of turbulence, says Jean-David Zeitoun. The growth in spending needed to try to cure these ills of the century is greater than that of the global economy.

Zeitoun pleads for a tax "that hurts" on products deemed harmful. For the "fossil industries" - oil, coal, gas - "there is no other option than disposal", he writes. "There are a huge shortage of workers in clean energy, health, environment and education"