‘Silent Spring’ 60 years on: 4 essential reads on pesticides and the environment

October 16, 2022 / activist360

Photo by Laura Arias, Pexels — *Man Fumigating the Plants Laura Arias, Pexels*

By Jennifer Weeks, The Conversation (US CC BY-NC-ND 4.0)

In 1962 environmental scientist Rachel Carson published “Silent Spring,” a bestselling book that asserted that overuse of pesticides was harming the environment and threatening human health. Carson did not call for banning DDT, the most widely used pesticide at that time, but she argued for using it and similar products much more selectively and paying attention to their effects on nontargeted species.

“Silent Spring” is widely viewed as an inspiration for the modern environmental movement. These articles from The Conversation’s archive spotlight ongoing questions about pesticides and their effects.

1. Against absolutes

Although the chemical industry attacked “Silent Spring” as anti-science and anti-progress, Carson believed that chemicals had their place in agriculture. She “favored a restrained use of pesticides, but not a complete elimination, and did not oppose judicious use of manufactured fertilizers,” writes Harvard University sustainability scholar Robert Paarlberg.

Rachel Carson. The author of Silent Spring (1962), the book that forced the nation to confront the toll of pesticides on the environment, Carson began her career with the U.S. Fish and Wildlife Service. A refuge on the southern coast of Maine now bears her name. (USFWS) (CC BY 2.0)

This approach put Carson at odds with the fledgling organic movement, which totally rejected synthetic pesticides and fertilizers. Early organic advocates claimed Carson as a supporter nonetheless, but Carson kept them at arm’s length. “The organic farming movement was suspect in Carson’s eyes because most of its early leaders were not scientists,” Paarlberg observes.

This divergence has echoes today in debates about whether organic production or steady improvements in conventional farming have more potential to feed a growing world population.

2. Concerned cropdusters

Well before “Silent Spring” was published, a crop-dusting industry developed on the Great Plains in the years after World War II to apply newly commercialized pesticides. “Chemical companies made broad promises about these ‘miracle’ products, with little discussion of risks. But pilots and scientists took a much more cautious approach,” recounts University of Nebraska-Kearney historian David Vail.

As Vail’s research shows, many crop-dusting pilots and university agricultural scientists were well aware of how little they knew about how these new tools actually worked. They attended conferences, debated practices for applying pesticides and organized flight schools that taught agricultural science along with spraying techniques. When “Silent Spring” was published, many of these practitioners pushed back, arguing that they had developed strategies for managing pesticide risks.

Archival footage of crop-dusters spraying in California in the 1950s.

Today aerial spraying is still practiced on the Great Plains, but it’s also clear that insects and weeds rapidly evolve resistance to every new generation of pesticides, trapping farmers on what Vail calls “a chemical-pest treadmill.” Carson anticipated this effect in “Silent Spring,” and called for more research into alternative pest control methods – an approach that has become mainstream today.

3. The osprey’s crash and recovery

In “Silent Spring,” Carson described in detail how chlorinated hydrocarbon pesticides persisted in the environment long after they were sprayed, rising through the food chain and building up in the bodies of predators. Populations of fish-eating raptors, such as bald eagles and ospreys, were ravaged by these chemicals, which thinned the shells of the birds’ eggs so that they broke in the nest before they could hatch.

“Up to 1950, ospreys were one of the most widespread and abundant hawks in North America,” writes Cornell University research associate Alan Poole. “By the mid-1960s, the number of ospreys breeding along the Atlantic coast between New York City and Boston had fallen by 90%.”

Bans on DDT and other highly persistent pesticides opened the door to recovery. But by the 1970s, many former osprey nesting sites had been developed. To compensate, concerned naturalists built nesting poles along shorelines. Ospreys also learned to colonize light posts, cell towers and other human-made structures.

Wildlife monitors band young ospreys in New York City’s Jamaica Bay to monitor their lives and movements.

Today, “Along the shores of the Chesapeake Bay, nearly 20,000 ospreys now arrive to nest each spring – the largest concentration of breeding pairs in the world. Two-thirds of them nest on buoys and channel markers maintained by the U.S. Coast Guard, who have become de facto osprey guardians,” writes Poole. “To have robust numbers of this species back again is a reward for all who value wild animals, and a reminder of how nature can rebound if we address the key threats.”

4. New concerns

Pesticide application techniques have become much more targeted in the 60 years since “Silent Spring” was published. One prominent example: crop seeds coated with neonicotinoids, the world’s most widely used class of insecticides. Coating the seeds makes it possible to introduce pesticides into the environment at the point where they are needed, without spraying a drop.

But a growing body of research indicates that even though coated seeds are highly targeted, much of their pesticide load washes off into nearby streams and lakes. “Studies show that neonicotinoids are poisoning and killing aquatic invertebrates that are vital food sources for fish, birds and other wildlife,” writes Penn State entomologist John Tooker.

EPA Decision Maintains Dangerous Regulatory Loophole for Pesticide-Coated Seeds https://t.co/zvZELod3rs
— Endangered Species Coalition (@endangered) October 5, 2022

In multiple studies, Tooker and colleagues have found that using coated seeds reduces populations of beneficial insects that prey on crop-destroying pests like slugs.

“As I see it, neonicotinoids can provide good value in controlling critical pest species, particularly in vegetable and fruit production, and managing invasive species like the spotted lanternfly. However, I believe the time has come to rein in their use as seed coatings in field crops like corn and soybeans, where they are providing little benefit and where the scale of their use is causing the most critical environmental problems,” Tooker writes.

California court ruling opens door for protection of insects as endangered species

June 5, 2022 / activist360

By Liz Kimbrough, Mongabay (CC BY-NC-ND 4.0).

A court ruled this week that the California Endangered Species Act (CESA) can apply to invertebrates, including insects.
This means legal protections will be in place for four native, endangered bumblebee species in California.
The decision marks the end of a court battle between conservation groups and a consortium of large-scale industrial agricultural interests.
An estimated 28% of all bumblebees in North America are at risk of extinction, with consequences for ecosystems and crops, as one-third of food production depends on pollinators.

A California court has ruled that state legislation on endangered species can apply to invertebrates. The decision this week by the Third District Court of Appeal means insects, including four endangered native Californian bumblebee species and the monarch butterfly, will receive much-needed protection under the California Endangered Species Act.

“We are celebrating today’s decision that insects and other invertebrates are eligible for protection under CESA,” Sarina Jepsen, director of endangered species at the Xerces Society for Invertebrate Conservation, said in a press release. “The Court’s decision allows California to protect some of its most endangered pollinators, a step which will contribute to the resilience of the state’s native ecosystems and farms.”

In 2018, the Xerces Society, the Center for Food Safety (CFS), and Defenders of Wildlife petitioned the state of California to list four species of native bumblebees as endangered under CESA.

The California Fish and Game Commission voted to begin the process of listing these bees as endangered in 2019, but were then sued by a “consortium of California’s large scale industrial agricultural interests,” according to a Xerces Society press release. The trial court sided with the agricultural consortium, and the conservation groups appealed that decision in 2021. The decision this week marks a win for the conservation groups.

The four species are the western bumblebee (Bombus occidentalis), whose relative abundance has declined by 84%; the Suckley cuckoo bumblebee (Bombus suckleyi) which is considered critically endangered on the IUCN Red List and whose range has shrunk by 58%; the Crotch’s bumblebee (Bombus crotchii), now found in just 20% of its historical range; and Franklin’s bumblebee (Bombus franklini) which, despite extensive annual surveys, has not been seen since 2006.

According to California law, protections under the CESA mean that public agencies should not approve projects that would “jeopardize the continued existence” of any endangered or threatened species or adversely modify their habitat. These species are also protected from being removed from the wild or killed.

“It is a great day for California’s bumble bees!” said Pamela Flick, California program director with Defenders of Wildlife.

Sam Joyce, a certified law student with the Stanford Environmental Law Clinic who argued the case in the Third District, said the CESA is an important tool to protect and restore endangered species. He said the court’s ruling “ensures that CESA will fulfill its purpose of conserving ‘any endangered species’ by protecting the full range of California’s biodiversity, including terrestrial invertebrates.”

The IUCN’s Bumble Bee Specialist Group reports that 28% of all bumblebees in North America are at risk of extinction. Alarming on its own, this decline may also have consequences for ecosystems and crops, as one-third of food production depends on pollinators like bees.

“With one out of every three bites of food we eat coming from a crop pollinated by bees, this court decision is critical to protecting our food supply,” said Rebecca Spector, West Coast director at the Center for Food Safety. “The decision clarifies that insects such as bees qualify for protections under CESA, which are necessary to ensure that populations of endangered species can survive and thrive.”

Inside global water-conflict hotspots

March 27, 2022 / activist360

*Water in well. Source: Suhasajgaonkar, CC BY-SA 4.0, via Wikimedia Commons*

By Bob Koigi, FairPlanet (CC BY-NC-ND 4.0).

For thousands of years, bodies of water have been attractions around which the very first civilizations formed, offering people fresh drinking and irrigation water; however, due to their high value and scarcity, they have also been sources of contention, creating competition among communities and countries. Today, as climate change threatens the global supply of water, these conflicts are more pronounced in certain areas, escalating in disunity and violence.

As global water supplies dwindle, occasioned by unprecedented population growth, poor governance, weak infrastructure, climate change and pollution, among other factors, nations and citizens are rising against each other in the fight for the scarce and necessary resource, inducing experts, including UN Secretary Generals, to posit that future wars will be fought over water rather than oil.

Transboundary water conflagrations have redefined foreign relations in the 20th century: from Iran, which has for years been engaged in protracted clashes with Afghanistan over the sharing of the Helmand River’s waters, to Pakistan’s conflict with India that dates back to the 1960s due to the waters of the Indus River – used as a weapon of war in the dispute over Kashmir -, as well as the clash between Egypt, Ethiopia and Sudan over the construction of the Grand Renaissance Dam that will store 10 million cubic metres of water, and the intermittent clashes between muslim Fulani herders and christian farmers in Nigeria over lack of rain and pasture.

Indeed, in 2017, water was attributed as a key factor in conflicts in over 45 countries.

Water-conflict hotspots

There are an estimated 260 transboundary bodies of waters – lakes, rivers and aquifers that are shared by two or more nations – which supply water to over 2 billion people. They have been sources of livelihood, but have also had large roles in shaping inter-state and global geopolitics.

According to a water conflict chronology, a breakdown of the 925 water conflicts that go back 5,000 years, a large share of water wars are related to agriculture due to the fact that the sector accounts for 70 percent of freshwater use.

“The instability and conflicts associated with water have ripple effects that have shaped international relations and altered how we live. Key among them are migration and the emergence of water refugees,” said Fatma Abdalla, a water and environmental activist. “These developments are likely to become more pronounced going forward as the effects of climate change become more intense and supplies dwindle. It is a nightmare that governments and the international community haven’t given much thought to, but urgently should.”

Sustainable water agreements

However, even with water’s destabilising potential, there have been concerted efforts to arrest the runaway situation. From 1948, over 200 international water agreements have been negotiated and signed, among them the UNECE Water Convention, which spells out the framework for transboundary water cooperation globally. Others include the Indus Waters Treaty of 1960 between Pakistan and India and the Global Water Convention on Transboundary Rivers and Lakes, chaperoned by the United Nations, which includes the commitments of 43 countries.

“Now more than ever, there needs to be cooperation and a shared framework among sectors that are heavily dependent on water, such as energy, sanitation, agriculture, navigation and industry in order to have a harmonised and sustainable approach to address the biting water shortage,” argues Jessica Rotich, a Water, Sanitation and Hygiene (WASH) expert. “Governments, private sectors and development agencies must therefore work together to streamline a workable formula.”

It is a statement corroborated by the Water, Peace and Security Partnership, WRI and the Pacific Institute who, through a report dubbed Ending Conflicts over Water: Solutions to Water and Security Challenges, highlighted a series of strategies that are crucial to taming water-based conflicts – among them political and legal implementations, policy and governance strategies, economic and financial tools and science and engineering approaches.

Tech to the rescue

Technology has also been at the forefront of tackling water-related conflicts with great results. The Water, Peace and Security (WPS) partnership, a coalition of six European and American NGOs, has come up with Global Early Warning Tool, that bets on machine learning to predict conflicts before they arise by combining data on population density, droughts, flooding, crop failure, and rainfall among other data sources to highlight conflict warnings. The hotspots are displayed in a red-and-orange Mercator projection and are narrowed down to the administrative districts. The tool has identified 2,000 prospective conflict zones with an accuracy rate of 86 percent.

“As factors that drive instability and conflict become more pronounced and water now starts being used as a tool of war and terrorism, which may ultimately create failed states, there has to be a change in our way of doing things,” Abdalla advocated. “We have to bring everyone onboard in conservation efforts, boosting investment in water initiatives, embracing innovations that deliver payoffs and supporting entrepreneurs who have dedicated themselves to saving our planet thanks to their innovative initiatives.”