T he scenes have become all too familiar: submerged crops; army helicopters dropping food rations; volunteers and soldiers wading through knee-deep water carrying the old and the frail; embankments filled with men, women, children and livestock.

These images have been etched on the collective memory of Pakistanis since the 2010 mega Indus floods deluged a fifth of the country, affecting 21 million people. But today such scenes fail to stir the nation’s compassion. Since then Pakistan has faced deluges every year.

Experts say the intensity and frequency of flood in Pakistan will only increase.