The last in the series introduced by Tony Soper with lain Guest
Including this week: Clarion Call
From the far north of Scotland angry voices proclaim the transformation of the Flow Country - a peaty moorland plateau - to serried ranks of conifers. High-speed Pill
In Australia the controversial cull to reduce the kangaroo population may be phased out if attempts to deliver contraceptive pills at high velocity prove successful. Acid Test
In early summer the cliffs of Cornwall are ablaze with wild flowers. But a west country
GP has come up with a theory that casts a shadow over their future, and could lead to a fresh look at British air pollution policy. Editor ROBIN HELLIER BBC Bristol