Chemical fertilizers and animal waste contain nitrates and phosphorus that can get washed with rain or snowmelt into the state's rivers. That affects Iowa's more liberal urban centers which rely on rivers and lakes for drinking water.

A backlash is building against an EU ‘omnibus’ bill that seeks to make it easier to authorise and use pesticides across the bloc. 

MEPs are still yet to set a date to vote on the European Commission’s proposal to extend how long pesticide active substances can stay approved in the EU, amid a series of protest letters from scientists, UN health experts, and divisions among member states. 

EI parliament’s environment and agriculture committees were originally expected to hold a joint vote on a compromise text on 5 October, but shelved that date without proposing another as this article went to publication. 

Sustained criticism has come from the scientific community. 

Last month, a group of more than 500 scientists signed an open letter to the commission on 16 September demanding a pause on the file pending “an independent assessment, whether carried out by parliament’s own research service or by an equivalent independent body.” 

And last week, a group of five UN health experts penned their own letter to the EU executive.

They warned that the commission’s plan to extend grace periods for products withdrawn on safety grounds, widen derogations for hazardous substances, and restrict the use of the latest independent scientific evidence “seem difficult to reconcile with the precautionary principle and with obligations to respect, protect and fulfil human rights, including the rights of peasants and other people working in rural areas”. 

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