To quote the Royal Horticultural Society: "Soil plays a key role in the carbon cycle, can hold the water needed for plants to grow, and can help to prevent extreme water crises such as flood events or droughts. Most crucially for our species, it can feed us; perpetually, sustainably and healthily. But to maximise these benefits, we need to keep learning about it, and handle it with care and thought."

What lives in the soil is often little appreciated - bees and butterflies are recognised for their importance, but the tiny insects and microbes that live invisibly in the soil are also essential, and the basis of organic gardening is caring for the soil.

Our Film for Action in April is the story of a group of young British farmers doing just this, and the vital impact of their journey.

See our Events page for details of Six Inches of Soil.