People in the West African country of Senegal have made their living from the sea for generations. But overfishing has put the region's fish stocks in crisis. And the Senegalese are struggling to find a solution. Jori Lewis has this report.
As millions of more Chinese enter the middle class, many are demanding a key passport to that lifestyle: a car. Millions throughout the developing world have the same demand. The world can't sustain this. One possible solution: car sharing.
Washington has touted the increased use of biofuels, such as ethanol, as a way to reduce carbon emissions, but a study published today suggesting boosting the use of biofuels also poses some environmental hazards, as The World's Jason Margolis explains.
The World's Clark Boyd reports from Denmark on a new factory that's making ethanol from straw. If the technology pans out, supporters hope it will help replace both gasoline and biofuels made from food crops.
A Saudi Arabian company has leased tens of thousands of acres in Ethiopia to grow rice for export. The Ethiopian government says it will help provide food security for its citizens but some who live in the region say they're not seeing any benefits.