1.   CODEFF, a local affiliate of Friends of the Earth, is calling for forest development to be on a sustainable basis.

2.   However one judges its achievements to date, dual containment cannot provide a sustainable basis for U.S. policy in the Persian Gulf.

3.   The challenge is not merely to encourage the people to grow more food, but for them to do so on sustainable commercial basis.

4.   The term refers particularly to seasonal workers and part-time workers who are officially categorized as employed but not on a sustainable basis to ensure sufficient income.

5.   Auckland University Maori studies lecturer Margaret Mutu claims the birds are being taken on a sustainable basis.

6.   Last August at the South Pacific Forum then-prime minister Francis Billy Hilly told other Pacific leaders that logging would be carried out on a sustainable basis.