Dawn: As evident from longer spells of heavy rains and devastating floods for the fourth consecutive year, Pakistan is experiencing the worst effects of climate change. These include serious threats to agriculture and water resources and, in fact, the countrys economic fabric. As a corollary, the countrys status as an agro-based economy has become extremely vulnerable to unpredictable changes in weather and their consequences. These changes include hotter summers, early cold spell, irregular monsoons,...