"Back at Huxhams Cross, O’Connell is taking stock of all they have achieved in the first five years. “We are what they call carbon negative, so we sequester five tonnes of carbon per year, over and above what we use. Our biodiversity levels have gone up, we’ve got 400% more worms, 30% more bird species.”

https://www.theguardian.com/environment/2022/jun/03/the-regenerative-farm-working-to-improve-soil-without-fertilisers