Australian: CAKED in sweat and slime, Mohamed Abdul Wozad pauses for breath before heaving another basket of river mud on his head, and starting up the slippery path towards the embankment above. A lifetime resident of Gabura Island in southwest Bangladesh, Wozad lives at the battlefront of global climate change, a 28sq km patch of damp earth clasped in the estuarine fingers of Bangladesh’s sprawling river network. Bangladesh squeezes its roughly 160 million population into an area one-sixth the …