Archive: 01/03/2011

Have we reached peak travel?

(PhysOrg.com) -- Since the 1970s, passenger travel by vehicles and airplanes has grown rapidly in industrialized countries, and the International Energy Agency has predicted steady, though slower, travel growth ...

Jan 03, 2011 3.4 / 5 (8) 8 | with audio podcast report

Wastewater treatment lowers pathogen levels

A recent study by a team of researchers at the University of Arizona has tracked the incident of pathogens in biosolids over a 19 year period in one major U.S. city. In the same study, the researchers also analyzed pathogen ...

Jan 03, 2011 3.5 / 5 (2) 2 | with audio podcast