Canada's oil sands could become the number one source of US oil imports this year, even though it is expensive and environmentally costly. Anchor Marco Werman speaks with energy expert Daniel Yergin of Cambridge Energy Research Associates.
Film director James Cameron wants to shine a light on a dangerous and environmentally damaging oil-extraction process in Canada. Anchor Lisa Mullins speaks with Cameron about his latest off-screen project.
Beirut's streets are filled with aging cars spewing clouds of toxic fumes in the air. Ben Gilbert reports that researchers hope to find out exactly how much damage those exhaust fumes are doing to Lebanese health.
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.
Japan continues to struggle with the aftermath of the earthquake and tsunami that crippled the Fukushima nuclear plant. Anchor Lisa Mullins speaks with Marco Werman. He's in a village outside the exclusion zone experiencing high levels of radiation.