You can watch the video of Jackie Stroud (SSP/NEC Fellow) talking about her experience on studying the benefits of earthworms to soils here.

Soil health
BBC News: “Huge knowledge gap over health of soil”
A vital knowledge gap about England’s environment has been uncovered by soil campaigners.
They have discovered that just 0.41% of the cash invested in environmental monitoring goes on examining the soil.
That’s despite the fact that soils round the world – including in the UK – are said to be facing a crisis.