Carbon may be a dirty word, but in farming and food terms, it is currency. It creates life in the soil which translates to nutrition. As a frontline in the fight against climate change, farmers are being asked to adapt their methods to protect the planet. Regenerative farming is one system attracting growing attention and hundreds of farmers are expected to discuss and learn about it at the Fields Good conference in Glenarm on Saturday. Missouri rancher Greg Judy who will be speaking at the event has changed how he describes his work in the American Midwest. "I used to call myself a grass farmer - I'm not a grass farmer, I'm a microbe farmer," he said as he searched the soil on Will Fraser's Cullybackey farm for worm manure. (BBC News)