Because of their rapid growth on what is often unproductive land, they also have a significant capacity as a carbon (C) sink, thereby helping to meet requirements of the Kyoto protocol (UNFCCC 1998; Hall 2001; NZCCP 2001; Trotter et al.
The Australia and New Zealand Society for Geriatric Medicine (ANZSGM), the College of New Zealand Clinical Psychologists (NZCCP) and New Zealand Psychologists for Older Peoples (NZPOPs) were contacted during the process of ethics approval, requesting permission for an email invitation to be sent to members requesting participation in an online survey.