Farm work involves exposure to pesticides, a danger of which are only exacerbated by climate change.

Increased heat and levels of CO2 in the atmosphere give a boost to unwanted weeds. They also render the herbicides used to battle them less effective—forcing farmers to compensate by using more of them over time.

Each year, the U.S. uses over a billion pounds of pesticides.

One of the largest contributors to farm workers’ coming into contact with pesticides is pesticide drift, which is the movement of pesticide dust or droplets through the air at the time of application or soon after in any site other than the area intended.

Studies have estimated that as much as 45% of spray misses its target and becomes drift or ground deposits, an imminent danger to farm workers laboring nearby.

Organophosphate insecticides have been linked to neurological damage in children; Neonicotinoid insecticides cause developmental defects, heart deformations, and muscle tremors in unborn children; and Paraquat has been shown to increase the risk of developing Parkinson’s disease.