What does sustainable ranching mean?

Have you noticed that 'sustainability' is the latest buzz word related to ranching? Ever wonder what they are talking about? I have attended several workshops and read many articles in an attempt to determine what they mean by 'sustainable ranching'. To date I have not heard a specific definition. Generally, the ranchers on the panels will fall back on, "if the ranch has been around for over 100 years it is probably sustainable". However, after listening to the proponents of the program I am still not sure what they are planning to sustain. They identify practices, actions and conditi...