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How does the EPA know a pesticide is safe to use in my yard?

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Last Updated on June 7, 2025 by Rod Washington

EPA
A mosquito-control technician sprays a mixture including insecticides in a yard in Michigan. AP Photo/John Flesher
Jeffrey Gore, Mississippi State University Environmental Protection Agency head Lee Zeldin has said he wants the federal agency to accelerate scientific safety evaluations of various chemicals, including pesticides. The EPA reportedly has more than 500 pending reviews of proposed new pesticides and more than 12,000 overdue reevaluations of pesticides currently in use. The agency is under pressure from the chemical and agricultural industries to catch up, while health and environmental advocates demand it maintain high safety standards. The review process is careful for a reason – and perhaps the only real method of speeding it up is the one Zeldin has proposed: reassigning staff so there are more people to share the work. As a faculty member at a land-grant university who has studied the effectiveness of commercial and experimental pesticides in the southern U.S., I have seen how the federal pesticide regulatory process identifies risks to humans and the environment and mitigates them with specific use instructions. Here’s how the process works.

First, what is a pesticide?

The EPA, which regulates pesticides in the U.S., defines a pesticide as any substance or mixture of substances intended to prevent, destroy, repel or mitigate any pest, such as weeds, insects and organisms, that attack plants. Pesticides are often referred to as toxins when found in food, water bodies or other places where they are not intended. But just because something is detected doesn’t mean it’s harmful to humans or wildlife. Toxicity depends on how much of the substance a person or animal is exposed to, how they are exposed to it – such as breathing it, or getting it on their skin – and for how long. The Department of Agriculture began regulating pesticides in 1947 with the Federal Insecticide, Fungicide, and Rodenticide Act. Most of the department’s interest was whether a particular pesticide was effective against the target pests. In 1970, the newly formed EPA took over responsibility for pesticides. It shifted its focus to the safety of consumers, farmworkers and the environment after the Federal Environmental Pesticide Control Act took effect in 1972.
A rack of shelves holds many different containers of various products advertised as pesticides.
A wide range of pesticides are available to consumers for use in their homes and yards. Jeffrey Greenberg/Universal Images Group via Getty Images

Risk-benefit analysis

Federal law requires the EPA to evaluate both the risks and the benefits of each pesticide – and to revisit that analysis at least every 15 years for every pesticide used in the U.S. The EPA determines whether the risks to people, animals or the environment are too high for the benefits the pesticide provides and whether any of those risks can be reduced. Sometimes a chemical’s risk can be lessened by recommending mitigation strategies such as wearing protective clothing, reducing environmental spread by barring the use of pesticides near the edges of a property, or decreasing the amount of a pesticide that’s legal to use. In its analysis of any given pesticide, the EPA requires a massive amount of data from the manufacturer about what ingredients the pesticide contains and how they work. The agency also reviews scientific research on the pesticide and uses its own scientists and independent experts to evaluate any studies that were submitted by the manufacturer. The EPA uses all the available data on a pesticide to evaluate the dose that would be toxic to a range of organisms, as well as what residues the pesticide may leave on plants, in the soil and in water. The data is incorporated into computer models that estimate the potential amount of the chemical that may come in contact with humans, animals and the environment. Those models’ results are then combined with toxicity data to determine risk. The models used by EPA scientists are very conservative. They often use significant overestimates of exposure, which means that when the models determine the risk of a pesticide is below a particular level, they are evaluating the risk posed by far higher quantities of the chemical than will ever actually be used. The risk from the amount actually used, therefore, is even less likely to cause harm. The EPA also provides opportunities for public comment on a pesticide and uses that information in its evaluations as well.
A tractor moves through a field, spraying mist behind it.
Pesticides are commonly used in commercial agriculture. Charlie Neibergall/AP

Additional scrutiny

The Endangered Species Act also requires the EPA to evaluate the effects of pesticides on threatened and endangered species. If a pesticide is found to potentially be dangerous to a protected species or its habitat, the EPA will discuss those findings with the U.S. Fish and Wildlife Service and the National Marine Fisheries Service, which enforce the Endangered Species Act, and determine what to do to ensure the species aren’t harmed. The law’s requirement to reevaluate each pesticide every 15 years is based on the fact that science evolves and information becomes more precise. New data can shed light on potential risks and benefits, and even lead to pesticides being banned or more closely restricted. Until recently, for instance, pesticide residues on plants, food and in the environment were measured in parts per million. Newer equipment can measure even smaller amounts, determining parts per billion, which is as precise as identifying one single second in 32 years. Some chemicals can even be measured in parts per trillion, equivalent to one drop of water in 20 Olympic-size swimming pools. That means exposures can be more accurately measured. While some chemicals can be toxic in very small concentrations, most pesticides can be detected at levels that do not pose a biological risk.

Allowing a pesticide to be used

If the EPA determines that a pesticide’s risks outweigh its benefits, then its staff will conduct additional analyses to determine how to mitigate the risks enough to justify using it. If that’s not possible, the EPA will reject the application and not allow the pesticide to be used in the U.S. If the agency determines that the benefits outweigh the risks, the EPA approves the pesticide for sale and use in the U.S. The law requires the pesticide come with a label providing a strict set of guidelines for how, when and where to use the pesticide. The guidelines define amounts and timing for applying the pesticide safely, and specific restrictions or protection strategies to control the target pests while eliminating or minimizing harm to the environment, workers and the public. The EPA also makes information on pesticides available to the public, so anyone can find out how to use them safely. Using the pesticide without following those directions is a violation of federal law.The Conversation Jeffrey Gore, Professor of Agricultural Science and Plant Protection, Mississippi State University This article is republished from The Conversation under a Creative Commons license. Read the original article.

STM Daily News is a vibrant news blog dedicated to sharing the brighter side of human experiences. Emphasizing positive, uplifting stories, the site focuses on delivering inspiring, informative, and well-researched content. With a commitment to accurate, fair, and responsible journalism, STM Daily News aims to foster a community of readers passionate about positive change and engaged in meaningful conversations. Join the movement and explore stories that celebrate the positive impacts shaping our world.

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Original Tommy’s: How a Chili Burger Became a Southern California Icon

Original Tommy’s, established in 1946 in Los Angeles, is famous for its thick chili burgers and late-night appeal. It remains family-owned, embodying authentic Los Angeles culture and serving as a cultural landmark despite the fast-food industry’s evolution.

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In a city famous for reinvention, reinvention was never the point at Original Tommy’s. Since 1946, the no-frills hamburger stand at Beverly and Rampart has served generations of Angelenos the same way: chili dripping, paper wrapped, eaten standing up, usually late at night. Original Tommy’s isn’t just a restaurant — it’s a piece of Los Angeles history.

Fast food restaurant with palm trees. Original Tommy's!
Location of the first restaurant at the intersection of Beverly Blvd & Rampart Blvd in Los Angeles. The restaurant comprises both the shack in the foreground as well as the building that surrounds it. Patrons can eat at their cars or standing at the counter along the back walls. Image Credit: Bobak Ha’Eri 

From a Small Stand to a City Landmark

Original Tommy’s was founded on May 15, 1946, by Thomas James “Tommy” Koulax, the son of Greek immigrants. What began as a modest walk-up stand selling hamburgers and hot dogs quickly gained attention for one reason: chili. Not the thin, soupy kind — but a thick, meaty chili ladled generously over burgers, fries, hot dogs, and eventually tamales.

The location mattered. Sitting just west of downtown Los Angeles, the stand became a crossroads for working-class Angelenos, night-shift workers, musicians, cops, cab drivers, and anyone else looking for something filling at all hours. Long before the phrase “LA street food” existed, Tommy’s was already living it.

The Chili Burger Becomes an LA Staple

By the 1950s and 1960s, Original Tommy’s chili burger had become legendary. The menu stayed intentionally simple: burgers, hot dogs, fries, tamales, and breakfast items — all enhanced by the same signature chili. The stand-up counters, fast service, and absence of indoor seating created a rhythm that felt uniquely Los Angeles.

This wasn’t fast food chasing national trends. It was local food defining a city.

Growth Without Franchising

Unlike many post-war burger chains, Original Tommy’s expanded cautiously. Beginning in the 1970s, additional locations opened throughout Southern California and later into Nevada. At its height, the chain operated more than 30 restaurants.

What made Tommy’s different was its refusal to franchise widely. Remaining family-owned helped preserve consistency — the chili tasted the same, the portions stayed generous, and the experience remained unmistakably “Tommy’s.”

A Cultural Shortcut for “Real Los Angeles”

Original Tommy’s became more than a place to eat — it became a visual and cultural shorthand for authenticity. Filmmakers and TV producers regularly used the location to signal a grounded, working-class Los Angeles. If a character eats at Tommy’s, you immediately know who they are.

  • Films: Heat, L.A. Confidential, They Live
  • Television: Bosch, Californication, numerous food and travel shows

Musicians, athletes, and actors have long cited Tommy’s as a post-show, post-game, or late-night ritual — a place that didn’t care who you were, only whether you were hungry.

Why Original Tommy’s Still Matters

Nearly 80 years later, Original Tommy’s endures because it never tried to be trendy. It represents a post-war immigrant success story, a city built on late nights, and a version of fast food rooted in place rather than branding.

In a region overflowing with burger options, Original Tommy’s remains singular — messy, unapologetic, and inseparable from Los Angeles itself.

Original Tommy’s: Then & Now

Original Location (1946–Present):
2575 Beverly Blvd, Los Angeles, CA — the iconic stand-up counter location that started it all.

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Expansion Era:
1970s–1990s locations spread across Los Angeles County, Orange County, the Inland Empire, and Nevada.

Today:
A smaller but focused footprint, still family-owned and operated from headquarters in Monrovia, California.

Also Good to Know

At our core, we at STM Daily News, strive to keep you informed and inspired with the freshest content on all things food and beverage. From mouthwatering recipes to intriguing articles, we’re here to satisfy your appetite for culinary knowledge.

Visit our Food & Drink section to get the latest on Foodie News and recipes, offering a delightful blend of culinary inspiration and gastronomic trends to elevate your dining experience. https://stmdailynews.com/food-and-drink/


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How to avoid seeing disturbing video on social media and protect your peace of mind

How to avoid seeing disturbing video on social media and protect your peace of mind

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Last Updated on January 29, 2026 by Daily News Staff

How to avoid seeing disturbing video on social media and protect your peace of mind
Social media often serves up disturbing images but you can minimize your exposure. Jacob Wackerhausen/iStock via Getty Images

Annie Margaret, University of Colorado Boulder

How to avoid seeing disturbing video on social media and protect your peace of mind

When graphic videos like those of the recent shooting of a protester by federal agents in Minneapolis go viral, it can feel impossible to protect yourself from seeing things you did not consent to see. But there are steps you can take.

Social media platforms are designed to maximize engagement, not protect your peace of mind. The major platforms have also reduced their content moderation efforts over the past year or so. That means upsetting content can reach you even when you never chose to watch it.

You do not have to watch every piece of content that crosses your screen, however. Protecting your own mental state is not avoidance or denial. As a researcher who studies ways to counteract the negative effects of social media on mental health and well-being, I believe it’s a way of safeguarding the bandwidth you need to stay engaged, compassionate and effective.

Why this matters

Research shows that repeated exposure to violent or disturbing media can increase stress, heighten anxiety and contribute to feelings of helplessness. These effects are not just short-term. Over time, they erode the emotional resources you rely on to care for yourself and others.

Protecting your attention is a form of care. Liberating your attention from harmful content is not withdrawal. It is reclaiming your most powerful creative force: your consciousness.

Just as with food, not everything on the table is meant to be eaten. You wouldn’t eat something spoiled or toxic simply because it was served to you. In the same way, not every piece of media laid out in your feed deserves your attention. Choosing what to consume is a matter of health.

And while you can choose what you keep in your own kitchen cabinets, you often have less control over what shows up in your feeds. That is why it helps to take intentional steps to filter, block and set boundaries.

Practical steps you can take

Fortunately, there are straightforward ways to reduce your chances of being confronted with violent or disturbing videos. Here are four that I recommend:

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  • Turn off autoplay or limit sensitive content. Note that these settings can vary depending on device, operating system and app version, and can change.

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  • Use keyword filters. Most platforms allow you to mute or block specific words, phrases or hashtags. This reduces the chance that graphic or violent content slips into your feed.
  • Curate your feed. Unfollow accounts that regularly share disturbing images. Follow accounts that bring you knowledge, connection or joy instead.
  • Set boundaries. Reserve phone-free time during meals or before bed. Research shows that intentional breaks reduce stress and improve well-being.
a settings screen with a red rectangle around one option
Where to turn off autoplay in your account on Facebook’s website. Screen capture by The Conversation, CC BY-ND

Reclaim your agency

Social media is not neutral. Its algorithms are engineered to hold your attention, even when that means amplifying harmful or sensational material. Watching passively only serves the interests of the social media companies. Choosing to protect your attention is a way to reclaim your agency.

The urge to follow along in real time can be strong, especially during crises. But choosing not to watch every disturbing image is not neglect; it is self-preservation. Looking away protects your ability to act with purpose. When your attention is hijacked, your energy goes into shock and outrage. When your attention is steady, you can choose where to invest it.

You are not powerless. Every boundary you set – whether it is turning off autoplay, filtering content or curating your feed – is a way of taking control over what enters your mind. These actions are the foundation for being able to connect with others, help people and work for meaningful change.

More resources

I’m the executive director of the Post-Internet Project, a nonprofit dedicated to helping people navigate the psychological and social challenges of life online. With my team, I designed the evidence-backed PRISM intervention to help people manage their social media use.

Our research-based program emphasizes agency, intention and values alignment as the keys to developing healthier patterns of media consumption. You can try the PRISM process for yourself with an online class I launched through Coursera in October 2025. You can find the course, Values Aligned Media Consumption, on Coursera. The course is aimed at anyone 18 and over, and the videos are free to watch.

This story was updated on Jan. 25, 2026 to include reference to the recent shooting in Minneapolis.

Annie Margaret, Teaching Assistant Professor of Creative Technology & Design, ATLAS Institute, University of Colorado Boulder

This article is republished from The Conversation under a Creative Commons license. Read the original article.


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Greenland’s Inuit have spent decades fighting for self-determination

The article highlights the Inuit communities in Greenland amid global discussions about the island’s ownership, particularly regarding U.S. President Trump’s interest. It chronicles the Inuit’s historical presence, their traditional lifestyles, and the ongoing struggle for self-determination. Despite colonial influences, modern Kalaallit strive for recognition and independence.

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The article highlights the Inuit communities in Greenland amid global discussions about the island's ownership, particularly regarding U.S. President Trump's interest. It chronicles the Inuit's historical presence, their traditional lifestyles, and the ongoing struggle for self-determination. Despite colonial influences, modern Kalaallit strive for recognition and independence.
People walk along a street in Nuuk, the capital of Greenland. Ina Fassbender/AFP via Getty Images

Susan A. Kaplan, Bowdoin College and Genevieve LeMoine, Bowdoin College

Amid the discussion between U.S. President Donald Trump and Danish and European leaders about who should own Greenland, the Inuit who live there and call it home aren’t getting much attention.

The Kalaallit (Inuit of West Greenland), the Tunumi (Inuit of East Greenland) and the Inughuit (Inuit of North Greenland) together represent nearly 90% of the population of Greenland, which totals about 57,000 people across 830,000 square miles (2.1 million square kilometers).

We are Arctic anthropologists who work in a museum focused on the Arctic and its people. One of the areas we study is a land whose inhabitants call it Kalaallit Nunaat, or land of the Kalaallit. Known in English as Greenland, it is an Indigenous nation whose relatively few people have been working for decades to reclaim their right to self-determination.

https://datawrapper.dwcdn.net/WqWx2/1

Arrivals from the west

For nearly 5,000 years, northwestern Greenland – including the area that is now the U.S. Space Force’s Pituffik Space Base, formerly known as Thule Air Force Base – was the island’s main entry point. A succession of Indigenous groups moved eastward from the Bering Strait region and settled in Siberia, Alaska, Canada and Greenland.

Approximately 1,000 years ago, the ancestors of the Inuit living in Greenland today arrived in that area with sophisticated technologies that allowed them to thrive in a dynamic Arctic environment where minor mishaps can have serious consequences. They hunted animals using specialized technologies and tools, including kayaks, dog-drawn sleds, complex harpoons, and snow goggles made from wood or bone with slits cut into them. They dressed in highly engineered garments made from animal fur that kept them warm and dry in all conditions.

Their tools and clothing were imbued with symbolic meanings that reflected their worldview, in which humans and animals are interdependent. Inughuit families who live in the region today continue to hunt and fish, while navigating a warming climate.

file 20260127 56 2dj9qg.jpg?ixlib=rb 4.1
Local people fish from a small boat by an iceberg with an ice cave, near Ilulissat, in 2008. Bryan Alexander, courtesy of the Peary-MacMillan Arctic Museum, Bowdoin College, CC BY-NC-ND

Arrivals from the east

At Qassiarsuk in south Greenland, around the time Inuit arrived in the north, Erik the Red established the first Norse farm, Brattahlíð, in 986, and sent word back to Iceland to encourage others to join him, as described in an online exhibit at the Greenland National Museum. Numerous Norse families followed and established pastoral farms in the region.

As Inuit expanded southward, they encountered the Norse farmers. Inuit and Norse traded, but relations were sometimes tense: Inuit oral histories and Norse sagas describe some violent interactions. The two groups maintained distinctly different approaches to living on the land that rims Greenland’s massive ice sheet. The Norse were very place-based, while the Inuit moved seasonally, hunting around islands, bays and fjords.

As the Little Ice Age set in early in the 14th century, and temperatures dropped in the Northern Hemisphere, the Norse were not equipped to adjust to the changing conditions. Their colonies faltered and by 1500 had disappeared. By contrast, the mobile Inuit took a more flexible approach and hunted both land and marine mammals according to their availability. They continued living in the region without much change to their lifestyle.

A center of activity

In Nuuk, the modern capital of Greenland, an imposing and controversial statue of missionary Hans Egede commemorates his arrival in 1721 to establish a Lutheran mission in a place he called Godthåb.

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In 1776, as trade became more important, the Danish government established the Royal Greenland Trading Department, a trading monopoly that administered the communities on the west coast of Greenland as a closed colony for the next 150 years.

By the 19th century some Kalaallit families who lived in Nuuk/Godthåb had formed an educated, urban class of ministers, educators, artists and writers, although Danish colonists continued to rule.

Meanwhile, Kalaallit families in small coastal communities continued to engage in traditional economic and social activities, based on respect of animals and sharing of resources.

On the more remote east coast and in the far north, colonization took root more slowly, leaving explorers such as American Robert Peary and traders such as Danish-Greenlandic Knud Rasmussen a free hand to employ and trade with local people.

The U.S. formally recognized Denmark’s claim to the island in 1916 when the Americans purchased the Danish West Indies, which are now the U.S. Virgin Islands. And in 1921, Denmark declared sovereignty over the whole of Greenland, a claim upheld in 1933 by the Permanent Court of International Justice. But Greenlanders were not consulted about these decisions.

People gather outdoors carrying red and white flags.
People protest President Donald Trump’s desire to own Greenland outside the U.S. consulate in Nuuk, Greenland, in January 2026. AP Photo/Evgeniy Maloletka

The world arrives

file 20260127 56 l931il.jpg?ixlib=rb 4.1
A 1944 ad urging U.S. customers to buy shortwave radios touts contact with the people of Greenland as one benefit. Courtesy of the Peary-MacMillan Arctic Museum, Bowdoin College, CC BY-NC-ND

World War II brought the outside world to Greenland’s door. With Denmark under Nazi control, the U.S. took responsibility for protecting the strategically important island of Greenland and built military bases on both the east and west coasts. The U.S. made efforts to keep military personnel and Kalaallit apart but were not entirely successful, and some visiting and trading went on. Radios and broadcast news also spread, and Kalaallit began to gain a sense of the world beyond their borders.

The Cold War brought more changes, including the forced relocation of 27 Inughuit families living near the newly constructed U.S. Air Force base at Thule to Qaanaaq, where they lived in tents until small wooden homes were built.

In 1953, Denmark revised parts of its constitution, including changing the status of Greenland from a colony to one of the nation’s counties, thereby making all Kalaallit residents of Greenland also full-fledged citizens of Denmark. For the first time, Kalaallit had elected representatives in the Danish parliament.

Denmark also increased assimilation efforts, promoting the Danish language and culture at the expense of Kalaallisut, the Greenlandic language. Among other projects, the Danish authorities sent Greenlandic children to residential schools in Denmark.

In Nuuk in the 1970s, a new generation of young Kalaallit politicians emerged, eager to protect and promote the use of Kalaallisut and gain greater control over Greenland’s affairs. The rock band Sumé, singing protest songs in Kalaallisut, contributed to the political awakening. https://www.youtube.com/embed/qe-f6jleXFs?wmode=transparent&start=0 Sumé, a rock band singing in Kalaallisut, the Greenlandic language, helped galvanize a political movement for self-determination in the 1970s.

In a 1979 Greenland-wide referendum, a substantial majority of Kalaallit voters opted for what was called “home rule” within the Danish Kingdom. That meant a parliament of elected Kalaallit representatives handled internal affairs, such as education and social welfare, while Denmark retained control of foreign affairs and mineral rights.

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However, the push for full independence from Denmark continued: In 2009, home rule was replaced by a policy of self-government, which outlines a clear path to independence from Denmark, based on negotiations following a potential future referendum vote by Greenlanders. Self-government also allows Greenland to assert and benefit from control over its mineral resources, but not to manage foreign affairs.

Today, Nuuk is a busy, vibrant, modern city. Life is quieter in smaller settlements, where hunting and fishing are still a way of life. While contemporary Greenland encompasses this range of lifestyles, Kalaallit are unified in their desire for self-determination. Greenland’s leaders have delivered this message clearly to the public and to the White House directly.

Susan A. Kaplan, Professor of Anthropology, Director of Peary-MacMillan Arctic Museum and Arctic Studies Center, Bowdoin College and Genevieve LeMoine, Curator, Peary-MacMillan Arctic Museum and Arctic Studies Center, Bowdoin College

This article is republished from The Conversation under a Creative Commons license. Read the original article.

STM Daily News is a vibrant news blog dedicated to sharing the brighter side of human experiences. Emphasizing positive, uplifting stories, the site focuses on delivering inspiring, informative, and well-researched content. With a commitment to accurate, fair, and responsible journalism, STM Daily News aims to foster a community of readers passionate about positive change and engaged in meaningful conversations. Join the movement and explore stories that celebrate the positive impacts shaping our world. 

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