61.   The Government keep changing the rules of the game, which creates enormous problems for local authorities.

62.   The growing number of life sentence prisoners has been a considerable problem for the prison service for some years now.

63.   The height of these first forests must have caused considerable problems for the animal inhabitants.

64.   The immediate problem for parents is what to tell them.

65.   The lack of snow is causing problems for ski resorts.

66.   The main problem for engineers was the location of underground rivers in the area.

67.   The main problem for the climbers was lack of sleep.

68.   The materials of Fluxus artists were mainly ephemeral or paper-based, or centred on performance art, presenting problems for exhibition organisers.

69.   The measures being used for coping with ash handling problems for the first four options described above would also be applicable.