They say necessity makes even the timid brave. Well the adage proved true yesterday in Copenhagen when Tuvalu proposed that countries sign a tough and legally binding agreement to replace the Kyoto Protocol which would force ambitious global emission cuts, even on developing nations. Talks broke down as developing nations split over the matter. Incidentally, Tuvalu’s highest point is just 4.5 metres above sea level, and there are projections that in this century alone, sea levels could rise by more than a metre. Necessity is also the author of change.