The winning team, VitaChar, proposes the conversion of organic waste into an organic fertiliser with a simple, safe, and efficient device. Methane emissions, which contribute to climate change, would be reduced, as green waste doesn’t end up in landfill. Nutrients are returned directly to the soil, and costs and emissions associated with transport are reduced. VitaChar is proposed as being carbon negative, as it results in a reduction in atmospheric Co2. VitaChar has also won the Climate Response category and the People’s Choice Prize.