In what may be revealed as a failed attempt to breed a smokeless version of cannabis, Toyota's Roof Garden subsidiary has developed a Cherry Sage shrub derivative that's bioengineered to better absorb airborne pollutants. The Kirsch Pink plant can absorb air pollutants about 1.3x more effectively than its parent plant. Toyota began doing research in the agricultural biotechnology field in 1998 and has since incorporated technologies like bioplastics in its new vehicles. The merger of agricultural and the auto industry is nothing new, as Henry Ford patented a car made entirely of soybean-based plastics that ran on ethanol way back in 1942.

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