We seem to have learnt at least something from those monocrop areas of forestry that were the norm in the early 20th century. There's a number of schemes now tr

We seem to have learnt at least something from those monocrop areas of forestry that were the norm in the early 20th century. There's a number of schemes now trying to recreate some of Europe's mainly long-lost temperate rain forest. Of course it's far harder to put back than not lose in the first place...