Steve Sapienza exposes the human cost of palm oil, a cheap ingredient used in many processed foods.
The world--and especially the U.S--wants cheap shrimp. For the $1 billion plus shrimping industry in Thailand, satisfying this appetite comes at the expense of workers.
As Canadian mining companies look to exploit vast swaths of the Panamanian rain forest, local protesters and environmental activists fight back.
Water and sanitation are at the center of a heated political debate in Liberia. Why are so many still going without?
Liberian journalist Tecee Boley and NewsHour special correspondent Steve Sapienza on why the effects of war and a lack of accountability mean poor access to clean water and sanitation.
Access to water for the Ivory Coast's rural areas could be an important factor in bringing together a country in conflict.
Every day, millions of people across West Africa struggle to get access to safe drinking water. In many cases, the greatest obstacle they face is lack of government accountability.
Tunisia faces economic and social obstacles in its transition to democracy.
Ug99, a fungal disease known as wheat rust, could destroy 80 percent of all known wheat varieties. Scientists in Kenya's Rift Valley are joining a global fight against it.
Gold-mining operations in remote regions of the Peruvian Amazon have stirred major environmental and health concerns over mercury contamination in fish, fish-eating wildlife and humans.
Fred de Sam Lazaro reports from the Dolo refugee camp on the border of Ethiopia and Somalia where Somali refugees have fled to escape al-Shabab violence and an increasingly deadly famine.
Illegal gold mining has become rampant in Peru. The government has tried to curb the practice by raiding mining operations, but so far this has had little impact.