WHEN AID donors helped fund the Mozal aluminium smelter in Mozambique, the aim was to assist that southern African nation construct up its financial system after a civil warfare. In a rustic with revenue per head of simply over $600, the Mozal smelter is the biggest industrial employer. But now the lofty goal to assist poor international locations develop dangers falling foul of wealthy international locations’ urge to decarbonise their economies and shield home manufacturing.