7. parents in some cities were asked about their own childhood ex- periences,
8. scientists - and inhabitants of low-lying coastal areas - would like to know the extent of future sea level rises.
9. When airline pilot Percy Trezise began to explore the rock art galleries of Cape York Peninsula
10. x
11. the problems afflicting a burgeoning world population, overcrowding, poverty, and environmental degradation are combining to put at risk the very essence of our sur- vival - food.
12. x
13. reliance on such categories and the consequent 'pigeonholing' of indi- viduals into one of the five categories can result in failure to provide the opportunities for each person to develop.
14. But the discovery, beginning two years ago, of a vast Aboriginal graveyard at Lake Victoria near the confluence of the Murray and Darling rivers has thrown even this into doubt.
15. Recent work by oceanographers, using a new model which takes into account a number of subtle facets of the sea - including vast and complex ocean currents - suggests that the rise in sea level may be less than some carlier estimates predicted