Some see hope for change as the film, with four Golden Globe awards and 10 Oscar nominations, spotlights the desperation of slum life.
Viggo Mortensen plays a literature professor who is gradually shifting from being a 'good' German to becoming a kingpin of the Nazi machine.
A new kind of census hopes to find the 1 billion people living off the grid.
Efforts outside the US tend to amount to 1.5 percent of GDP or less, one tally finds.
Gasoline and some heating costs are expected to be relatively low in 2009.
Proposed high-rise greenhouses could help solve a looming food crisis, professor says.