Like so many farmers across the UK, Adam Henson is facing a dilemma. In the face of pressure to go green, how can you change your farming habits and still pay the bills? Adam catches up with his neighbor, David Wilson, who is a regenerative farmer, to find out more about one of the big new trends in agriculture and to see what ideas might work on Adam's farm.Charlotte Smith checks out the soil on both farms and investigates 'greenwashing'. As big companies start buying up land for carbon off-setting, are they putting the UK's food production at risk?