Return of the Wilderness to the UK?

[SlyUrbanFox]

If you want to know what it would be like without us around google Chernobyl or Fukushima exclusion zone. Even 28 years on it doesn't look anything like a true wilderness.

Britain was covered in forest but most of that was gone hundreds if not a thousand years ago. Forestry will probably need more land than agriculture post SHTF as trees take so much longer to mature than crops do.