The world-wide cement industry is seeking experimental avenues that will lead to cement production that is less energy-intensive. less damaging to the surrounding environment and less prolific in GHG emissions. In Spain and Europe in general. this approach is wholly consistent with the concept of sustainability and compliance with the Kyoto Protocol. https://www.roneverhart.com/Almanac-Sunshine-Opportunity-Barrel-Aged-Hibiscus-Sour-single/