For the fourth year, people are being urged to turn off their lights for one hour to call attention to the issue of climate change.

VOA: special.2010.03.22

"Now we have what we would call rush hour conditions or peak travel conditions for as much as eight hours during the day - about three to four hours in the morning and similar time in the evening."

VOA: standard.2010.07.26

He helps staff the University of Pittsburgh School of Medicine's center that provides 24-hour consultations for in-flight emergencies for the airlines studied and that fields an average of one call per hour.

WSJ: The Flight Status of Passenger Ailments

Twice it was taken off call for an hour while it was cleaned.

BBC: NEWS | UK | Wales | Mid | Vandals attack lifeboat station

Its 24 hour call centre is the biggest single employer in Leeds.

BBC: Cloth caps to cyberspace