Peter Fiekowsky just visited the Blue Planet plant yesterday and shows photos of its operations to Chris Cheeseman and Michael Cook, British engineers who are working to develop a new component in cement. Blue Planet is producing limestone aggregate for concrete that is so carbon-negative that it offsets the CO2 emissions that inevitably result from the production of Portland Cement. These two innovations might very well combine to increase the negative emission level of concrete enough to capture and sequester 40 or 60 gigatons of carbon from the atmosphere every year -- enough to restore our atmosphere's temperature to a comfortable, sustainable level. For the video, audio podcast, transcript, and comments: https://tosavetheworld.ca/episode-511-lock-up-carbon-in-concrete.