Could the market for carbon credits encourage farmers to change the way they manage their land to sequester more carbon? We hear from one Leicestershire farmer who has just started selling credits after taking measurements of soil organic matter.

COP 27 is underway in Egypt, and ahead of the conference, agricultural policy makers from all around the world met to agree actions that could be taken to make farming and food systems more sustainable. This ministerial gathering discussed the impact of global food security in the light of Russia's aggression against Ukraine, and the severe droughts experienced across Europe, China and North America.

And we visit a robotic milking parlour which is mostly powered by an on-farm wind turbine.

Presented by Anna Hill
Producer for BBC Audio in Bristol by Heather Simons