Guests in The Sustainable Hour on 20 November 2019 is Michelle Mairs from Sprout House Farms and Mike Hodgkinson from Capricorn Power, which has invented a highly efficient waste-heat-to-energy engine

Guests in The Sustainable Hour on 20 November 2019 is Michelle Mairs from Sprout House Farms and Mike Hodgkinson from Capricorn Power, which has invented a highly efficient waste-heat-to-energy engine