Dr. David Orr began his presentation with a metaphor. He explained that the collective task of living sustainably can be thought of as a trip that all of humanity must take together. The 7.2 billion ...

Tributes have been paid to former Strathclyde Police chief constable Sir John Orr who has died aged 72. Sir John was at the helm of Scotland's largest police force from 1996 until 2001.