Hemp's Environmental Case, Claims and Caveats

Hemp has a strong environmental story and an unusually loud one, which makes the caveats worth reading. This section weighs the genuine advantages, such as a dense canopy that shades out weeds, deep roots that suit crop rotation, carbon held in stalks that become hempcrete or insulation, and durable textile fibre, against the parts often left out, including processing energy, water use in retting, and transport when the mill is far from the field. Enthusiasm here, but with the arithmetic attached.