'It's almost carbon-negative': how hemp became a surprise building material

Proponents of the material tout its non-toxic and mould, fire and infestation-resistant propertiesCannabis sativa, the plant of the thousand and one molecules, has a long and expansive reputation - as a folk medicine, a source of textile fibre for clothes, for making rope or plugging holes in ships.But now cannabis - or specifically its non-psychoactive variant, hemp - is being touted for something greater still: building blocks for housing that may avoid some of the environmental, logistic and economic downsides of concrete. Continue reading...