Nature

Leah Ellis, a former MIT postdoc and co-founder of MIT startup Sublime Systems, speaks with Nature reporter Emma Ulker about the company’s mission to reduce carbon emissions from cement production, how her work with co-founder Prof. Yet-Ming Chiang helped inspire her entrepreneurial journey, and her philosophy as a science entrepreneur. “At Sublime, we are tackling a hard problem — pun intended — because the cement industry is one of the most difficult to approach, owing to its sheer scale,” explains Ellis. “The motivation for our work is that change in cement-making technology has a significant impact — it’s really only once in a millennium that you get to rethink such a foundational and monumental building material.”