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California Bans Pesticide Linked to Brain Damage in Children

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California Bans Pesticide Linked to Brain Damage in Children
Chlorpyrifos is commonly used by farmers on many popular crops such as grapes. lovro77 / E+ / Getty Images

A popular agricultural pesticide that has been linked to brain damage in children will no longer be sold in California starting in February, state officials announced on Wednesday, as the AP reported.


Under the agreement, farmers will still be allowed to use the pesticide chlorpyrifos, but will have to stop at the end of 2020.

If the manufacturer of chlorpyrifos had decided to embark on a protracted legal battle rather than voluntarily withdraw their product, the timeline for removing the pesticide would have been much longer, according to the Los Angeles Times.

"For years, environmental justice advocates have fought to get the harmful pesticide chlorpyrifos out of our communities," said Governor Gavin Newsom in a statement released by the California EPA. "Thanks to their tenacity and the work of countless others, this will now occur faster than originally envisioned. This is a big win for children, workers and public health in California."

The pesticide is widely used as farmers rely on it for some of the nation's most popular crops, including alfalfa, almonds, citrus, cotton, grapes and walnuts, according to the AP.

California environmental regulators have had a ban on chlorpyrifos in their sights for years. They had designated the pesticide "a toxic air contaminant" that is harmful when it enters the respiratory track or makes skin contact. That designation allowed yesterday's agreement to include a ban on aerial spraying of chlorpyrfios, as NPR reported.

The federal government also sought to stop the use of chlorpyrifos under the Obama administration. The Obama administration proposed banning the pesticide in 2015 when the federal Environmental Protection Agency (EPA) found that chlorpyrifos could pose harm to consumers. However, in early 2017, the EPA, under the Trump administration, reversed course and said there was too much uncertainty about it, as NPR reported.

Since the federal government walked back its plan to ban the pesticide, California moved to implement its own regulation. Hawaii and New York are already phasing in their own bans, according to the AP.

"The swift end to the sale of chlorpyrifos protects vulnerable communities by taking a harmful pesticide off the market," said California Secretary for Environmental Protection Jared Blumenfeld in a statement. "This agreement avoids a protracted legal process while providing a clear timeline for California farmers as we look toward developing alternative pest management practices."

The state did agree to kick in $5.6 million to help pesticide manufacturers develop a safer alternative.

"But just so you're aware, that's what agriculture does every day, we're always looking for new products, safer products that are effective," said Casey Creamer, president of the California Citrus Association, which represents about 5,000 growers, as the AP reported.

Creamer added that the he and his organization believe the risks are far less than what the state presented.

"We really thought the exposure assessments and risks were just inflated and it wasn't a true characterization of the protections that were already in place," he said according to the AP.

Corteva AgriScience, formerly known as Dow AgroSciences, is the largest manufacturer of the chemical. After mounting restrictions on applications of chlorpyrifos products over the last few years, the state chose to revoke product registrations this year, which is effectively a ban. Companies that make the pesticide, led by Dow, had asked for a hearing, which delayed implementation of the ban, according to the Los Angeles Times.

Corteva said in a statement that it reached the agreement "in the best interests of the affected growers," as the AP reported.

"Through recent actions, the state of California has improvised and implemented several uniquely challenging regulatory requirements for chlorpyrifos. These new, novel requirements have made it virtually impossible for growers to use this important tool in their state," Corteva said in its statement.

As for the federal government, EPA chief Andrew Wheeler had extended the safety review of chlorpyrifos until 2022, but complaints about its process have forced the agency to expedite the review process and to have a decision by next October, the Los Angeles Times reported.

The Forest Vixen's CC Photo Stream. Flickr / CC BY 2.0


Spring is coming. And soon, tree swallows will start building nests. But as the climate changes, the birds are nesting earlier in the spring.


"It's getting warmer overall. They're thinking, OK, it's a good time to breed, to lay my eggs," says Lily Twining of the Max Planck Institute for Animal Behavior in Germany.

She says that despite recent warming, late-season cold snaps remain common. Those cold snaps can harm newborn chicks.

Hatchlings cannot regulate their body temperature, so they are vulnerable to hypothermia. And the insects they eat stop flying in cold weather, potentially leaving the chicks to starve.

"These chicks are growing very, very fast," Twining says. "They have very high energy demands, so… if they don't get a lot of that good high-quality food during this pretty specific time… that's when these cold weather events seem to be most devastating."

For example, data from Ithaca, New York, shows that a single cold snap in 2016 killed more than 70% of baby tree swallows.

"And there have been more and more of these severe cold weather die-off events for these tree swallows as they've been breeding earlier and earlier over the past 40 or so years," Twining says.

So for these songbirds, earlier springs can come with devastating consequences.

Reporting credit: Sarah Kennedy / ChavoBart Digital Media

Reposted with permission from Yale Climate Connections.

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