Pakistan's farmers are still counting their losses from the devastating floods that have put a third of the country under water, but the long-term impact is already clear.

"We have gone back 50 years," said Ashraf Ali Bhanbro, a farmer in Sindh province whose 2,500 acres of cotton and sugarcane — on the verge of being harvested — have now been wiped out.

More than 33 million people have been affected by the floods caused by record monsoon rains, and one of the worst-hit areas is Sindh in Pakistan's south.