Since then we have planted over 10, 000 olive trees in upper Galilee, enough to sustain 400 families.

ECONOMIST: Retired hurt

The piston then moves back up to sustain the reaction in the upper reactor, and so on.

ECONOMIST: Nuclear power

His analysis of rainfall patterns in the area suggests that rainfall in agriculture's upper-Mesopotamian heartland would, at this time, have fallen below the level needed to sustain farming reliably.

ECONOMIST: Climate change and civilisation