Up Front: Report on Nigeria Needing $12 Billion to Clean up Bayelsa Oil Spills

A new report by the Bayelsa State Oil and environmental commission says that Nigeria needs $12 billion to clean up decades-old oil spills in southern Bayelsa state over a 12-year period. Bayelsa is one of the major oil producing states in the Niger Delta. Kenyan environmental scientist and National Geographic explorer Margaret Awuor talks about her work on protecting mangroves.