Plant Fibers Make Stronger Concrete

It may surprise you that cement is responsible for 7 percent of the world's carbon emissions. That's because it takes a lot of heat to produce the basic powdery base of cement that eventually becomes concrete. But it turns out that simple fibers from carrots could not only reduce that carbon footprint but also make concrete stronger. VOA's Kevin Enochs reports.

© La Voix de l'Amérique - samedi 27 octobre 2018