The weedkiller 2,4-D is “possibly carcinogenic to humans,” says the International Agency for Research of Cancer, the same WHO agency that classified glyphosate, the most widely used weedkiller in the world, as probably carcinogenic. The listing for 2,4-D, which follows a meeting of experts convened by IARC, is a step below the rating given to glyphosate. IARC… » Read More