Tajikistan builds the world's tallest dam for a hydroelectric plant in the hope of resolving a chronic deficit of electricity. A shortage of water needed to fuel hydroelectric plants has led to serious power outages in Tajikistan, in a crisis set to worsen as Central Asia is hard-hit by climate change. Construction worker Muslikhiddin Makhmudzoda's family, like many others, are spending their winter using smartphone lights to find their way around the house and a charcoal stove to cook their food. IMAGES AND SOUNDBITES