The volunteers were then asked to describe how they would rate a series of acts on an ethical scale ranging from zero (perfectly okay) to nine (very wrong).

ECONOMIST: Soaping away your outer dirt may lead to inner evil

Richardson: Climate change poses ethical problems because it threatens the enjoyment of basic human rights at a vast scale, because formulating and agreeing upon adequate solutions stretches the envelope of what international policymaking bodies can legitimately undertake, and because fairly allocating the burdens of implementing any solution poses thorny problems of justice.

UNESCO: World Water Assessment Programme (WWAP)

But large-scale efforts to computerise health records tend to run into bureaucratic, technical and ethical problems.

ECONOMIST: Technology