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Is generative AI bad for the environment? A computer scientist explains the carbon footprint of ChatGPT and its cousins

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Is generative AI bad for the environment? A computer scientist explains the carbon footprint of ChatGPT and its cousins

AI chatbots and image generators run on thousands of computers housed in data centers like this Google facility in Oregon.
Tony Webster/Wikimedia, CC BY-SA

Kate Saenko, Boston University

Generative AI is the hot new technology behind chatbots and image generators. But how hot is it making the planet?

As an AI researcher, I often worry about the energy costs of building artificial intelligence models. The more powerful the AI, the more energy it takes. What does the emergence of increasingly more powerful generative AI models mean for society’s future carbon footprint?

“Generative” refers to the ability of an AI algorithm to produce complex data. The alternative is “discriminative” AI, which chooses between a fixed number of options and produces just a single number. An example of a discriminative output is choosing whether to approve a loan application.

Generative AI can create much more complex outputs, such as a sentence, a paragraph, an image or even a short video. It has long been used in applications like smart speakers to generate audio responses, or in autocomplete to suggest a search query. However, it only recently gained the ability to generate humanlike language and realistic photos.

Using more power than ever

The exact energy cost of a single AI model is difficult to estimate, and includes the energy used to manufacture the computing equipment, create the model and use the model in production. In 2019, researchers found that creating a generative AI model called BERT with 110 million parameters consumed the energy of a round-trip transcontinental flight for one person. The number of parameters refers to the size of the model, with larger models generally being more skilled. Researchers estimated that creating the much larger GPT-3, which has 175 billion parameters, consumed 1,287 megawatt hours of electricity and generated 552 tons of carbon dioxide equivalent, the equivalent of 123 gasoline-powered passenger vehicles driven for one year. And that’s just for getting the model ready to launch, before any consumers start using it.

Size is not the only predictor of carbon emissions. The open-access BLOOM model, developed by the BigScience project in France, is similar in size to GPT-3 but has a much lower carbon footprint, consuming 433 MWh of electricity in generating 30 tons of CO2eq. A study by Google found that for the same size, using a more efficient model architecture and processor and a greener data center can reduce the carbon footprint by 100 to 1,000 times.

Larger models do use more energy during their deployment. There is limited data on the carbon footprint of a single generative AI query, but some industry figures estimate it to be four to five times higher than that of a search engine query. As chatbots and image generators become more popular, and as Google and Microsoft incorporate AI language models into their search engines, the number of queries they receive each day could grow exponentially.

a roomful of people work on computers
AI chatbots, search engines and image generators are rapidly going mainstream, adding to AI’s carbon footprint.
AP Photo/Steve Helber

AI bots for search

A few years ago, not many people outside of research labs were using models like BERT or GPT. That changed on Nov. 30, 2022, when OpenAI released ChatGPT. According to the latest available data, ChatGPT had over 1.5 billion visits in March 2023. Microsoft incorporated ChatGPT into its search engine, Bing, and made it available to everyone on May 4, 2023. If chatbots become as popular as search engines, the energy costs of deploying the AIs could really add up. But AI assistants have many more uses than just search, such as writing documents, solving math problems and creating marketing campaigns.

Another problem is that AI models need to be continually updated. For example, ChatGPT was only trained on data from up to 2021, so it does not know about anything that happened since then. The carbon footprint of creating ChatGPT isn’t public information, but it is likely much higher than that of GPT-3. If it had to be recreated on a regular basis to update its knowledge, the energy costs would grow even larger.

One upside is that asking a chatbot can be a more direct way to get information than using a search engine. Instead of getting a page full of links, you get a direct answer as you would from a human, assuming issues of accuracy are mitigated. Getting to the information quicker could potentially offset the increased energy use compared to a search engine.

Ways forward

The future is hard to predict, but large generative AI models are here to stay, and people will probably increasingly turn to them for information. For example, if a student needs help solving a math problem now, they ask a tutor or a friend, or consult a textbook. In the future, they will probably ask a chatbot. The same goes for other expert knowledge such as legal advice or medical expertise.

While a single large AI model is not going to ruin the environment, if a thousand companies develop slightly different AI bots for different purposes, each used by millions of customers, the energy use could become an issue. More research is needed to make generative AI more efficient. The good news is that AI can run on renewable energy. By bringing the computation to where green energy is more abundant, or scheduling computation for times of day when renewable energy is more available, emissions can be reduced by a factor of 30 to 40, compared to using a grid dominated by fossil fuels.

Finally, societal pressure may be helpful to encourage companies and research labs to publish the carbon footprints of their AI models, as some already do. In the future, perhaps consumers could even use this information to choose a “greener” chatbot.The Conversation

Kate Saenko, Associate Professor of Computer Science, Boston University

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

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The leadership hack that drives success: Being trustworthy

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theconversation.com – Yufei Ren, Associate Professor of Economics, Labovitz School of Business and Economics, University of Minnesota Duluth – 2025-02-20 07:52:00

The leadership hack that drives success: Being trustworthy

Trustworthy managers get better performance reviews, recent research shows.
Andrey Popov/Getty Images

Yufei Ren, University of Minnesota Duluth

National Leadership Day, which takes place every Feb. 20, offers a chance to reflect on what truly defines leadership – not just strategy or decision-making, but the ability to build trust. In an era of rapid change, when teams look to leaders for stability and direction, trust is the invisible currency that fuels organizational success.

As an economist, I know there’s a lot of research proving this point. I’ve conducted some myself, including work on how trust is essential for leaders in cross-cultural business environments. In an expansive study of China’s fast-paced restaurant industry, my colleagues and I found that leaders who cultivate trust can significantly reduce employee churn and improve organizational performance.

While my study focuses on one sector, its lessons extend far beyond that. It offers insights for leaders in any field, from corporate executives to community organizers.

Understanding the impact

In China, as in the U.S., the restaurant industry is known for high turnover rates and cutthroat competition. But our study found that managers who demonstrate trustworthiness can keep employees from fleeing to rivals, creating a more stable and committed workforce.

First, we conducted a field experiment in which we asked managers at around 115 restaurants how much money they were willing to send to employees in an investment game – an indicator of trust. We then found that for every 10% increase in managers’ trust-driven actions, employee turnover fell by 3.7 percentage points. That’s a testament to the power of trust in the workplace.

When managers are trustworthy, workers tend to be more loyal, engaged in their job and productive. Employees who perceive their managers as trustworthy report higher job satisfaction and are more willing to exert extra effort, which directly benefits the organization.

We also found that when employees trust one another, managers get better performance evaluations. That makes sense, since trust fosters improved cooperation and innovation across the board.

Practical steps to foster trust

Fortunately for managers – and workers – there’s a lot of research into how to be a more trustworthy leader. Here are a few insights:

Empower your team. Let employees take ownership of their responsibilities and make decisions within their roles. This not only boosts their engagement but also aligns their objectives with the broader goals of the organization. Empowerment is a key strategy in building trust.

Be fair and transparent. Managers should strive to be consistent in their actions, address concerns promptly and distribute rewards equitably. Those practices can create a psychologically safe and supportive work environment.

Promote collaboration. Encourage an atmosphere in which employees can openly share ideas and support one another. Activities that promote team cohesion and open communication can significantly enhance trust within the team.

Measure and manage trust. Implementing regular surveys or feedback sessions can help assess and manage trust levels within an organization. Consider integrating trust metrics into performance evaluations to emphasize their importance.

Some takeaways for National Leadership Day

Whether helming a business, a nonprofit or a local community initiative, leaders should recognize that being trustworthy isn’t just a “soft skill.” It’s a measurable force that drives success. By making trust-building a deliberate goal, leaders can create stronger, more resilient teams.

So this National Leadership Day is a good time to reflect: How do you build trust in your leadership? And how can you foster a culture of trustworthiness?

Managers should commit to leading with trust, acting with integrity and fostering workplaces where people feel valued and empowered. The impact will speak for itself.The Conversation

Yufei Ren, Associate Professor of Economics, Labovitz School of Business and Economics, University of Minnesota Duluth

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Trans people affirmed their gender without medical help in medieval Europe − history shows how identity transcends medicine and law

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theconversation.com – Sarah Barringer, Ph.D. Candidate in English, University of Iowa – 2025-02-18 07:36:00

Trans people affirmed their gender without medical help in medieval Europe − history shows how identity transcends medicine and law

The Lady and the Unicorn: Sight.
Unknown/Musée de Cluny, Paris via Didier Descouens/Wikimedia Commons

Sarah Barringer, University of Iowa

Restrictions on medical care for transgender youth assume that without the ability to medically transition, trans people will vanish.

As of 2024, 26 U.S. states have banned gender-affirming care for young people. Less than a month into office, President Donald Trump issued numerous executive orders targeting transgender people, including a mandate to use “sex” instead of “gender” on passports, visas and global entry cards, as well as a ban on gender-affirming care for young people. These actions foreground the upcoming Supreme Court case of U.S. vs. Skrmetti which promises to shape the future of gender-affirming health care in the U.S., including restrictions or bans.

History, however, shows that withholding health care does not make transgender people go away. Scholarship of medieval literature and historical records reveals how transgender people transitioned even without a robust medical system – instead, they changed their clothes, name and social position.

Surgery in medieval times

Surgery was not a widespread practice in the medieval period. While it gained some traction in the 1300s, surgery was limited to southern France and northern Italy. Even there, surgery was dangerous and the risk of infection high.

Cutting off fleshy bits is an old practice and, potential dangers aside, removing a penis or breasts wasn’t impossible. But amputating functioning limbs was nearly always a form of punishment. Medieval people, including surgeons and patients, likely would not have had positive views of surgery that involved removing working body parts.

Watercolor diagram of various implements resembling scalpels
Illustration from a Latin translation of Albucasis’ Chirurgia, depicting surgical instruments.
Wellcome Collection

Surgeons in the 14th century were increasingly thinking about how to perform surgery on those with both male and female genitalia – people now called intersex. But they thought about this in terms of “correcting” genitalia to make it more apparently male or female – an attitude still present today. Historically, the procedure was probably performed on adults, but today it is usually performed on children. Both then and now, the surgery often disregards the patient’s wishes and is not medically necessary, at times leading to complications later. For patients deemed female, excess flesh could be cut away, and for patients deemed male, the vulva could be cauterized to close it.

There is, however, at least one historical example of a transgender individual receiving surgery. In 1300, near Bern, Switzerland, an unnamed woman was legally separated from her husband because she was unable to have sex with him. Soon after, the woman headed to Bologna, which was the surgery capital of Europe at the time. There, a surgeon cut open the woman’s vulva, revealing a penis and testicles. The account ends, “Back home, he took a wife, did rural work, and had legitimate and sufficient intercourse with his wife.”

The story presents the possibility of medical transition, possibly even a desire for it. But given the limits of surgical techniques and ideologies at the time, these forms of medical transition were unlikely to be common.

Transitioning without medicine

To transition without medicine, medieval transgender people relied on changes they could make themselves. They cut their hair, put on different clothes, changed their names, and found new places in society.

In 1388, a young woman named Catherine in Rottweil, Germany, “put on men’s clothes, declared herself to be a man, and called herself John.” John went on to marry a woman and later developed breasts. This caused some initial consternation – the city council of Rottweil sent John and his wife to court. However, the court did not see breasts as inhibiting John’s masculinity and the couple went home without facing any charges.

In 1395, a transgender woman named Eleanor Rykener appeared before a court in London, England, after she was caught working as a prostitute. The court clerk wrote “that a certain Anna … first taught [her] to practice this detestable vice in the manner of a woman. [She] further said that a certain Elizabeth Bronderer first dressed [her] in women’s clothing” and later she took on work as an embroideress and tapster, a sort of bartender. The account is Rykener’s own, but the court clerk editorialized it, notably adding the phrase “detestable vice” in reference to prostitution.

Medieval manuscript illustration of two people embracing in bed
Detail of lovers in bed, Aldobrandino of Siena, Le Régime du corps, northern France. 13th century.
British Library Catalogue of Illuminated Manuscripts/Sloane MS 2435, f. 9v.

Rykener’s account reveals that there were a number of people interested in helping her transition – people who helped her dress, taught her how to behave, provided her employment and supported her choice of a new name. Community was a more important part of her transition than transforming her body. Based on the record, she apparently did not make an effort to create breasts.

Another account appeared in 1355 in Venice, Italy, concerning Rolandina Ronchaia. While John declared himself male, and Rykener was very active in her transition, Ronchaia’s transition was spurred on by the perceptions of others. She argued that she had always had a “feminine face, voice and gestures,” and was often mistaken for a woman. She also had breasts, “in women’s fashion.” One night, a man came to have sex with her, and Ronchaia, “wishing to connect like a woman, hid [her] own penis and took the man’s penis.” After that, she moved to Venice, where, although she continued to wear men’s clothes, she was still perceived as a woman.

Ronchaia’s account is unique because it emphasizes her body and her desire to change it by hiding her penis. But this was still a matter of what she herself could do to express her gender, rather than a medical transition.

A long transgender history

The accounts of medieval transgender individuals are limited – not only in number but in length. A lot of things did not get written down, and people were not talking about transgender people the way we are now.

Historical accounts of transgender individuals are almost always in court records, which reflect the concerns of the court more clearly than the concerns of its subjects. The court was especially worried about sexual activity between men, which both overemphasizes the importance of sex in medieval transgender people’s lives and often obscures that these accounts are even about transgender people. Eleanor Ryekener’s account frequently misgenders her and refers to her as “John.”

But it’s clear that transgender people existed in the medieval period, even when medical care was unavailable to them.

Yellowed page of manuscript with small, inked script
A court document from the interrogation of John Rykener.
Internet Medieval Source Book/Wikimedia Commons

It is also the case that many of these individuals – Rykener is a likely exception – were probably intersex, and their experience would be different from those who were not. Intersex people were legally recognized and allowed some leeway if they chose to transition as an adult. This is starkly apparent in an account from Lille, France, in 1458, where a transgender woman was accused of sodomy and burned at the stake. She claimed “to have both sexes,” but the account says this was not the case. While being demonstrably intersex may not have saved her, that she claimed she was is telling.

Gender transition has a long history, going even further back than the medieval period. Then as now, the local community played a vital role in aiding an individual’s transition. Unlike the medieval period, most modern societies have far greater access to medical care. Despite current restrictions, transgender people have far more options for transition than they once did.

Medieval modes of transitioning are not a solution to current denials of medical care. But medieval transgender lives do illuminate that transgender people will not vanish even when the legal and medical systems strive to erase them.The Conversation

Sarah Barringer, Ph.D. Candidate in English, University of Iowa

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

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Why community pharmacies are closing – and what to do if your neighborhood location shutters

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theconversation.com – Lucas A. Berenbrok, Associate Professor of Pharmacy and Therapeutics, University of Pittsburgh – 2025-02-18 07:36:00

Why community pharmacies are closing – and what to do if your neighborhood location shutters

Lucas A. Berenbrok, University of Pittsburgh; Michael Murphy, The Ohio State University, and Sophia Herbert, University of Pittsburgh

Neighborhood pharmacies are rapidly shuttering.

Not long ago, Walgreens, one of the nation’s biggest pharmacy chains, announced plans to close 1,200 stores over the next three years. That’s part of a larger trend that has seen nearly 7,000 pharmacy locations close since 2019, with more expected in the coming years.

Many community pharmacies are struggling to stay open due to an overburdened workforce, shrinking reimbursement rates for prescription drugs and limited opportunities to bill insurers for services beyond dispensing medications.

As trained pharmacists who advocate for and take care of patients in community settings, we’ve witnessed this decline firsthand. The loss of local pharmacies threatens individual and community access to medications, pharmacist expertise and essential public health resources.

The changing role of pharmacies

Community pharmacies – which include independently owned, corporate-chain and other retail pharmacies in neighborhood settings – have changed a lot over the past decades. What once were simple medication pickup points have evolved into hubs for health and wellness. Beyond dispensing prescriptions, pharmacists today provide vaccinations, testing and treatment for infectious diseases, access to hormonal birth control and other clinical services they’re empowered to provide by federal and state laws.

Given their importance, then, why have so many community pharmacies been closing?

There are many reasons, but the most important is reduced reimbursement for prescription drugs. Most community pharmacies operate under a business model centered on dispensing medications that relies on insurer reimbursements and cash payments from patients. Minor revenue comes from front-end sales of over-the-counter products and other items.

However, pharmacy benefit managers – companies that manage prescription drug benefits for insurers and employers – have aggressively cut reimbursement rates in an effort to lower drug costs in recent years. As a result, pharmacists often have to dispense prescription drugs at very low margins or even at a loss. In some cases, pharmacists are forced to transfer prescriptions to other pharmacies willing to absorb the financial hit. Other times, pharmacists choose not to stock these drugs at all.

And it’s not just mom-and-pop operations feeling the pinch. Over the past four years, the three largest pharmacy chains have announced plans to close hundreds of stores nationwide. CVS kicked off the trend in 2021 by announcing plans to close 900 pharmacy locations. In late 2023, Rite Aid said that thousands of its stores would be at risk for closure due to bankruptcy. And late in 2024, Walgreens announced its plans to close 1,200 stores over the next three years.

To make matters worse, pharmacists, like many other health care providers, have been facing burnout due to high stress and the lasting effects of the COVID-19 pandemic. At the same time, pharmacy school enrollment has declined, worsening the workforce shortage just as an impending shortfall of primary care physicians looms.

Why pharmacy accessibility matters

The increasing closure of community pharmacies has far-reaching consequences for millions of Americans. That’s because neighborhood pharmacies are one of the most accessible health care locations in the country, with an estimated 90% of Americans living within 5 miles of one.

However, research shows that “pharmacy deserts” are more common in marginalized communities, where people need accessible health care the most. For example, people who live in pharmacy deserts are also more likely to have a disability that makes it hard or impossible to walk. Many of these areas are also classified as medically underserved areas or health professional shortage areas. As pharmacy closures accelerate, America’s health disparities could get even worse.

So if your neighborhood pharmacy closes, what should you do?

While convenience and location matter, you might want to consider other factors that can help you meet your health care needs. For example, some pharmacies have staff who speak your native language, independent pharmacy business owners may be active in your community, and many locations offer over-the-counter products like hormonal contraception, the overdose-reversal drug naloxone and hearing aids.

You may also consider locations – especially corporate-owned pharmacies – that also offer urgent care or primary care services. In addition, most pharmacies offer vaccinations, and some offer test-and-treat services for infectious diseases, diabetes education and help with quitting smoking.

What to ask if your pharmacy closes

If your preferred pharmacy closes and you need to find another one, keep the following questions in mind:

What will happen to your old prescriptions? When a pharmacy closes, another pharmacy may buy its prescriptions. Ask your pharmacist if your prescriptions will be automatically transferred to a nearby pharmacy, and when this will occur.

What’s the staffing situation like at other pharmacies? This is an important factor in choosing a new pharmacy. What are the wait times? Can the team accommodate special situations like emergency refills or early refills before vacations? Does the pharmacist have a relationship with your primary care physician and your other prescribers?

Which pharmacies accept your insurance? A simple call to your insurer can help you understand where your prescriptions are covered at the lowest cost. And if you take a medication that’s not covered by insurance, or if you’re uninsured, you should ask if the pharmacy can help you by offering member pricing or manufacturer coupons and discounts.

What are your accessibility needs? Pharmacies often offer services to make your care more accessible and convenient. These may include medication packaging services, drive-thru windows and home delivery. And if you’re considering switching to a mail-order pharmacy, you should ask if it has a pharmacist to answer questions by phone or during telehealth visits.

Remember that it’s best to have all your prescriptions filled at the same pharmacy chain or location so that your pharmacist can perform a safety check with your complete medication list. Drug interactions can be dangerous.

Community pharmacies have been staples of neighborhoods for more than a century. Unfortunately, current trends in pharmacy closures pose real threats to public health. We hope lawmakers address the underlying systemic issues so more Americans don’t lose access to their medications, health services and pharmacists.The Conversation

Lucas A. Berenbrok, Associate Professor of Pharmacy and Therapeutics, University of Pittsburgh; Michael Murphy, Assistant Professor of Pharmacy Practice and Science, The Ohio State University, and Sophia Herbert, Assistant Professor of Pharmacy, University of Pittsburgh

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

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