 | | How Tunisia enlisted unarmed cacti in war against drought |
| | Multipurpose palm, Brazil's babacu gains attention |
| | A natural source for fertilizer and pest repellents |
| | The hidden perils of comparing GNP, inflation rates |
| | New cost-benefit approach taken on tobacco growing |
| | Five nations join in green belt plan for North Africa |
| | Effective vaccine for swine fever is research goal |
| | Lethal bacterium may help to curb malaria spread |
| | Trade in vegetable oils characterized by fierce competition |
| | ''Fingerprinted'' cargoes proposed for tracking oil spillage offenders |
