Synthetic fertilizers contribute mightily to climate change. So now there's a growing push in India to return to the ancient practice of using human waste as fertilizer, but with modern sanitary safeguards.
Leslie Noyes Moss thought her 1960s Peace Corps experience in a small Pakistan village was largely a failure. But when she returned 50 years later, she found she'd made more of an impact than she'd realized.
Afghanistan is a major supplier of the raw material for heroin but some of the drug is being consumed at home, and now Afghanistan is struggling with a growing addiction problem, as The World's Quil Lawrence reports from Kabul.
An increase in attacks by insurgents in Afghanistan has destabilized the efforts of aid workers, as Lisa Mullins speaks to Anja De Beer, Director of the Agency Coordinating Body for Afghan Relief (ACBAR).