{"version":"1.0","type":"rich","provider_name":"Acast","provider_url":"https://acast.com","height":250,"width":700,"html":"<iframe src=\"https://embed.acast.com/$/66bbc92da7f4fbb99112daaa/66bbc9319c1f916f7e83b00c?\" frameBorder=\"0\" width=\"700\" height=\"250\"></iframe>","title":"How to tackle cement's massive CO2 problem, with Sublime Systems' Leah Ellis","thumbnail_width":200,"thumbnail_height":200,"thumbnail_url":"https://open-images.acast.com/shows/66bbc92da7f4fbb99112daaa/66bbc9319c1f916f7e83b00c.jpg?height=200","description":"<p>Cement accounts for 8 percent of global CO2 emissions. The production of one ton of Portland cement — the kind most commonly used — results in one ton of CO2 released into the atmosphere. And since cement is exceptionally cheap and the most massively produced man-made material in the world, those emissions are going to grow. “In a do-nothing scenario, emissions from cement are projected to increase 50 percent between now and 2050,”  says Dr. Leah Ellis, co-founder and CEO of <a href='https://sublime-systems.com/'>Sublime Systems</a>.</p><p>Ellis’ company is producing low-carbon cement by replacing the traditional high-temperature, fossil fuel, combustion-driven kiln with an electrochemical approach that operates at ambient temperature and uses renewable electricity.</p><p>“I like to say Sublime is the electric vehicle of cement making.”</p><p><br/>Covered in this episode:</p><ul><li>[3:18] How Ellis’ background in chemistry led to making carbon-free cement</li><li>[5:51] Why defining cement by its performance is important</li><li>[7:48] The basics of cement</li><li>[9:29] The outrageous amount of cement produced annually</li><li>[11:29] How Sublime Systems produces cement with fewer carbon emissions</li><li>[18:06] The ability to compete economically</li><li>[23:04] Scaling up Sublime’s operations</li><li>[26:37 The leaky tap analogy to understand the climate crisis</li><li>[29:53] A vision for the cement industry in 2035</li></ul><p>For show notes and a full transcript, head to the <a href='https://tae.com/why-we-need-to-decarbonize-cement-with-sublime-systems-leah-ellis/'>episode page</a>.<br/><br/></p><p>Listen and Follow &apos;Good Clean Energy&apos; on <a href='https://podcasts.apple.com/us/podcast/good-clean-energy/id1658633508'>Apple Podcasts</a> <br/>Listen and Follow &apos;Good Clean Energy&apos; on <a href='https://open.spotify.com/show/1plXXkvithHnlHpNZUxSAo'>Spotify</a></p>","author_name":"TAE Technologies"}