Brazil has the potential to become one of the world's largest producers of oil if it can tap its reserves deep under the South Atlantic. Anchor Marco Werman discusses Brazilian views of deep-sea oil drilling with the BBC's Paulo Cabral.
Despite Mexico City's dense population, traffic, and the famed smog, the city is following the path of several European capitals by starting a bike rental program. Anchor Marco Werman speaks to reporter Franc Contreras in Mexico City.
A year after the Lockerbie bomber was released from a Scottish prison and sent home to Libya, four US senators are calling for a new investigation into why he was let out. The World's Marcus Wraight reports.
In an effort to help cut greenhouse gas pollution, British Columbia has adopted North America's largest carbon tax. But as the World's Jason Margolis reports, the tax may still be too small to be making a difference.
South Sudan has been fighting over disputed territory with Sudan ever since the two split apart last July. The fighting has intensified in recent weeks: now, southern military forces are occupying an oil-rich town that was under northern control.