The third of six programmes examining the elemental cycles vital to life.
The Nitrogen Cycle.
David Bellamy begins his trip around the nitrogen cycle in the Surrey hospital where he languished as a child suffering from acute kidney failure. He ends it by juggling with dung and urine in a Dutch pig farm. In between he explains how nitrogen is essential to all forms of life, but warns that too much of it can kill. To avoid poisoning the earth, the water and ourselves, the nitrogen cycle - in the state it is in at the moment - must be restored to safe dimensions.
Producer John Percival
0BOOK: The Cycles of Life, price £2.50, available from [address removed].
• NATURE: page 12
* DAVID BELLAMY 'S KIND OF DAY: page 98
0 TELETEXT SUBTITLES: page 888