Amid all the excitement around marijuana legalization in America, another newly legal crop has received comparatively little attention: hemp. And yet hemp may prove to be even more transformative, especially in the West’s arid landscapes. Hemp is a variety of the cannabis sativa plant that is not psychoactive. Whereas marijuana plants can produce both the psychoactive tetrahydrocannabinol (THC) and the non-psychoactive cannabidiol (CBD) extracts, hemp produces only the latter.