Pakistani labourers carry baskets of bananas at a fruit market in Lahore on December 7, 2012.

Pakistani labourers carry baskets of bananas at a fruit market in Lahore on December 7, 2012.

A Pakistani vendor sells lemons at a fruit market in Lahore on December 7, 2012.

Pakistani artisans chisel off pieces of mountain rock to form fancy bricks in Karachi on December 7, 2012. The community of artisans, who have been carving out fancy bricks for centuries, say their dying trade is facing existential threat due to the fragile economy in the South Asian nation, where high-end construction material can cost ten times more than regular cement bricks.

A Pakistani artisan chisels off pieces of mountain rock to form fancy bricks in Karachi on December 7, 2012. The community of artisans, who have been carving out fancy bricks for centuries, say their dying trade is facing existential threat due to the fragile economy in the South Asian nation, where high-end construction material can cost ten times more than regular cement bricks.

A labourer cuts the leaves of a cauliflower during harvest on a field in Quetta December 7, 2012.

A labourer cuts up bottles at a plastic recycling factory in Lahore December 7, 2012.

Labourers separate bottles by colour at a plastic recycling factory in Lahore December 7, 2012.

A labourer cuts the edges of bottles to prepare them for shredding at a plastic recycling factory in Lahore December 7, 2012.

A labourer carries recyclable shreds from plastic bottles at a plastic recycling factory in Lahore December 7, 2012.

A labourer pours crushed plastic into a pool of water at a plastic recycling factory in Lahore December 7, 2012.

A labourer sorts out coloured recyclable shreds from plastic bottles at a plastic recycling factory in Lahore December 7, 2012.