Fallen

Study: Better pollution measuring a must

Boulder, Colo. -- Pollution produced by the petroleum industry has fallen in recent years, a study says, but a big hurdle remains in accurately measuring the improvement.

Researchers with the University of Colorado at Boulder and the National Oceanic and Atmospheric Administration say the industry still significantly underestimates the amounts of reactive chemicals being released into the air, a university release said Wednesday.

Inaccuracies in the reporting of levels pose big challenges for the reduction and regulation of emissions coming from petrochemical plants, they say.

New 'Harry Potter' film tops $100 million

Los Angeles -- The latest"Harry Potter" movie, "Harry Potter and the Half-Blood Prince," has earned $107 million in its first three days in U.S. theaters, gate receipts show.

Entertainment Weekly reported online Saturday the sixth "Harry Potter" movie earned $26.8 million Friday, its third day in release in the United States.

Despite the initial domestic success of "Half-Blood Prince," the film's opening three-day total falls short of the tally earned by this summer's "Transformers: Revenge of the Fallen."

"Fallen" earned $127.8 million during the three days prior to its first Saturday in release.

The PG-rated movie is expected to earn strong weekend numbers thanks to its family-friendly rating, Entertainment Weekly said.