Concrete is the second most-used substance on Earth (behind water), and it's responsible for eight percent of the world's carbon footprint. Cement researcher Karen Scrivener shares the research behind a pioneering new kind of cement known as LC3, which could slash carbon emissions from this crucial building material by 40 percent, if adopted at ...

The world around us is mainly made of two things: nature and the materials that we extract from it. To fight climate change, we need to protect and regenerate nature and transform materials into low- or zero-carbon alternatives. Session 4 of the Countdown Global Launch, hosted by Prajakta Koli and Hannah Stocking, features Thomas Crowther, Ernes...

Karen Scrivener is a material chemist who has found a way to make concrete less problematic. Given the need for concrete in developing economies, we must re-imagine the material to make it less polluting. Karen believes that it will be possible if we make a conscious shift in the composition of the popular material.