Nigel,
      Keith and the telegraph prefer to use the English figures it makes the problem seem so much more dramatic.
The majority use the less dramatic UK figures.
Upland Dartmoor and parts of the Yorkshire moors have a density of one or less per square km London has a density of many hundreds possibly thousands per square km.
Careful selection of statistics can give a very distorted picture.
Can I ring the bell for the next round?