Winner Announced: Build Your Own TEDxChange

Muhammad Yunus, Michelle Rhee, Pierre Ferrari, and Anders Wilhelmson, plus a performance by the Arcade Fire. That’s part of the winning lineup.

Good Is

Feb 5, 2011

By Good Is

February 5, 2011

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We’re happy to announce the winner of our contest, in partnership with the Bill & Melinda Gates Foundation, in which we asked readers to come up with their ideal TEDxChange lineup. The winner is Chandra Wroblewski, whose lineup—Muhammad Yunus (pictured), Michelle Rhee, Pierre Ferrari, and Anders Wilhelmson (with musical guest Arcade Fire)—had the most exciting and topical selection of speakers. On top of that, it has an amazing idea audience interaction: social network gaming.

You can read all of Wroblewski’s submission below, and you can see the other top five finalists here. We would like to thank everyone who participated. We hope to see all your suggestions at a TED event soon.

Chandra Wroblewski‘s TEDxChange:

Speakers:

Muhammad Yunus

Founder of Graamen Bank, “Bank for the Poor,” Economist, Noble Peach Prize Winner

From Bangladesh

Graamen Bank, founded by Muhammad Yunus, provides small loans (micro-financing) to the world’s poorest people that otherwise could not secure a loan. Over 90 percent of his clientele are women, who are given a chance at a successful career through these services.

Video about starting his bank

Grameen bank website

Video: ideas on social business model

Michelle Rhee

Founder and CEO of Students First, Founder of The New Teacher Project, Former Chancellor of District of Columbia Schools

From Washington, D.C.

Activist and voice behind the push to fix the United States’ failing school systems, while her struggle may be more local, she once said “… if the country can make its education system the best in the world, economic success will follow.” Rhee faced much criticism during her tenure in the District, but is now moving forward with her mission to transform public education by putting the “students first.”

Students First

The New Teacher Project

Video: Waiting for ‘Superman’

Video: inspiration to teach

Video, Oprah announcing students first

Pierre Ferrari

Chief Executive Officer at Heifer International, Board Member, Ben & Jerry’s Ice Cream, President, Hot Fudge Social Venture Fund

From Congo, Kenya, and England

Ferrari left the Fortune 500 world to give his knowledge and expertise to social needs, beginning with CARE. A social entrepreneur, Ferrari currently leads Heifer International that uses an interesting approach to aid those in need: giving families livestock and training to “help families improve their nutrition and generate income in sustainable ways.”

Heifer International

Video about Heifer

Video: 30-second mba

Anders Wilhelmson

Inventor of Peepoo, Architect

From Stockholm, Sweden

Wilhelmson, an architect by trade, invented the “Peepoo,” a single use biodegradable toilet bag created to provide sanitization to the over two million people globally without toilets. His invention is urea-lined so it first breaks down feces and then becomes an effective fertilizer.

Peepoo website

Video on peepoo

Video: TEDxstockholm

Musical Interlude

Arcade Fire

Aside from being an incredibly talented, internationally recognized band, they have a record of supporting good causes including need in Haiti through Partners in Health and most recently they pledged to match up to $1 million in support of Haiti through Foundation KANPE. They were nominated for a Grammy for Album of the Year and recently won FWA’s website of the year, which shows their forward thinking nature and ability to engage their audience.

from Montreal, Canada

Singer, Régine Chassagne, originally from Haiti

Ways to Engage a Global Audience:

It’s game time!

Create a social networking game. For example, Global Mind Games challenges users to create solutions to the world’s problems through a Facebook application. The questions are not overly challenging, but it makes people think, become aware of issues, and get involved. It would also come up on News feeds to let friends and family know they are participating in TED virtually.

There could be TED specific questions that people can answer throughout the day. At TEDxChange a side screen could highlight some participants’ answers with their location and age. To break up the day, TED could Skype chat with a few participants about their answers. A simple, 15-second chat with a variety of people across the globe.

Recap:

I was looking for an interesting mix of people to cover all areas that are important for global development and health. At first, someone might listen to these speakers’ stories and say “What were you thinking?” That, to me, makes it more interesting and shows they are truly thinking outside the box.

* Give money to people who might not pay you back?
* Shake up bureaucracy for student development?
* Create a poop bag? For… people?
* Free cows? Overseas?

My line-up features people of different trades, nationalities, locations, gender, ages, and causes – but they all have one thing in common, which is to believe in the potential of all people in the world. Each speaker’s ideas and approach to change betters the global community – improving education, creating opportunities, finding simple solutions, believing in one another, and lending a helping hand.

Additionally, I particularly like this line-up because all these speakers are smart, educated, very fortunate people that could have simply worked to make money, but made something more. If you listen to their stories you’ll notice they didn’t anticipate being where they are today — Rhee, expected maybe to be a doctor. Yunus, always surprised about the new venture. Wilhemson, an architect by trade. Ferrari, making plenty of money at Coca-Cola. They all took their time and talents to create unique, sometimes controversial, solutions to help people near and far.

It’s inspirational to say they least, and I believe TEDxChange participants will learn a great deal about global development and health through these speakers.

Photo, by Hossain Toufique Iftekher, via Wikimedia Commons.

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Photo credit: Spencer Platt/Getty Images – Many U.S. apartments have individual heating and cooling systems that are less efficient than current technology.

Science, Technology

How window‑mounted heat pumps can give tenants efficient heating and cooling

A renter-friendly path to cleaner comfort.

Good Partner

6/17/2026

Moncef Krarti

People who rent their homes, or don’t have enough money to make major upgrades to their homes, have for many years been left out of a major shift in heating and cooling technology that can improve efficiency, save money and be better for the global climate: heat pumps.

Heating and cooling buildings consumes 35% of all the energy used in the United States each year. Many homes and businesses are converting their fossil fuel-powered heating and cooling systems to electric-powered heat pumps, which use electricity not to generate hot or cold air but to move heat into spaces needing warmth and out of spaces needing cooling.

Until recently, that process has required a significant amount of sizable and expensive equipment to be permanently installed in a building, which needs a professional contractor and can cost as much as US$10,000 just for the installation – in addition to the actual equipment. Often called mini-splits, these systems usually have a condenser outside the building that exchanges heat with the outdoor air and an evaporator inside that exchanges heat with the indoor air.

The New York City Housing Authority has been installing window-mounted heat pumps in apartments, like this one in Queens. AP Photo

But now window heat pumps are becoming available in the U.S. Much like a window air conditioner, these self-contained devices can be installed without professional help and plugged into a wall outlet. Unlike window air conditioners, though, they can provide heat as well as cooling. They cost much less than a permanent system – between $3,000 and $4,000 – and can be moved to a new property if the owner relocates.

There aren’t many options commercially available yet, and those on the market can’t heat or cool very large spaces on their own. And they work less efficiently when heating homes in places with extremely cold outdoor temperatures. A few models are available on the market that are even cheaper, but they don’t have efficiency ratings, don’t work when outdoor temperatures are very cold, and are louder when running.

I have designed and evaluated a wide range of building energy efficiency technologies; here’s how these window heat pumps work, and why they may allow apartment dwellers and residents of older houses to easily and relatively inexpensively make significant improvements to their homes’ heating and cooling systems. Federal subsidies for this type of equipment expired in 2025, but some utility companies, states and local governments may still offer money to help pay the costs.

Moving heat from one place to another

Heat pumps use a reversible refrigeration cycle and can provide similar heating and cooling as electric-powered space heaters, furnaces and baseboard heaters, while using less than half the electricity.

The most common heat pumps transfer heat between air indoors and outdoors, but other systems can exchange heat with the ground or with bodies of water, such as lakes.

Heat pumps’ capacities are defined by the amount of heat they can transfer in a particular period of time. A heat pump serving an entire home may need a capacity of 12,000 to 60,000 British thermal units (about 12,660 to 63,300 kilojoules) – but the window units’ capacities are much lower, getting up to only about 9,000 Btu (9,500 kJ).

Performance varies based on the conditions outdoors, where the unit is either sending excess heat to cool the indoors or gathering heat to warm the indoors. In cooling mode, heat pumps are rated by their seasonal energy efficiency ratio, a figure that indicates how much cooling is achieved per unit of electricity used. The corresponding measurement for heating is called heating seasonal performance factor. In general, the larger these numbers are, the better they will perform. The U.S. Department of Energy has established minimum standards for those figures.

While these units operate even when outdoor temperatures are -13 degrees Fahrenheit (-25 degrees Celsius), their heating output is reduced to almost half of its rated capacity, and their energy efficiency falls to one-third of its rated performance at that temperature.

In addition to their low cost compared to conventional split heat pumps, packaged window heat pumps meet heating and cooling needs with lower energy demands and costs. But each window unit serves just one room, while a more common split unit can serve multiple rooms.

Packaged window heat pumps are easy and inexpensive to install and offer all-in-one heating and cooling options for apartments and older homes, with higher energy efficiency performance than traditional systems. Their main limitations include their low capacities and reduced energy efficiency in extremely cold climates or conditions.

This article originally appeared on The Conversation. You can read it here.

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Photo credit: AP Photo/John Locher – A recent settlement with farm equipment manufacturer John Deere made it easier for farmers to repair machines on their own, a win for the ‘right to repair’ movement.

Money, Smart Spending

The ‘right to repair’ movement has a point, but consumers should read the warranty fine print first

Repair rights meet warranty realities.

Good Partner

6/17/2026

Wayne Fu

The “right to repair” movement is gaining steam as consumers push corporations to offer them more freedom to fix products – from cars to dishwashers to toys.

In April 2026, farm equipment maker Deere & Co. inked a US$99 million settlement in a class action suit over its prohibition on independent repairs to its increasingly high-tech equipment – another win for the movement. While the company didn’t admit wrongdoing, it will let farmers make more repairs themselves.

Equally significant, this case showed that the Federal Trade Commission, a lead plaintiff, may be more willing to protect consumers against the growing corporate control over servicing products after purchase.

Even President Donald Trump has weighed in. At an Oval Office event on June 4, 2026, he described existing restrictions as “strange” after he met with auto executives. “Nobody’s allowed to fix their car. … So I thought we’d do something about that,” he said, without offering details.

This push is understandable. As consumers want more reliable products, gaining the right to repair them with their own parts makes sense.

But they often overlook existing protections in their product warranties, which obligate the manufacturer to repair or replace if something goes wrong.

As a scholar focused on operational sustainability in supply chains, I have found that strong warranties aren’t just a safety net for buyers. They help companies build trust and stand out. Hyundai and Apple, for example, have used strong warranty programs to keep customers coming back for repairs within their own networks while maintaining profit margins. But many shoppers overlook this tool as the political momentum for the right to repair grows.

Back to the 1970s

Many automotive and electronics manufacturers have been making it harder for consumers to use parts not produced or authorized by the original manufacturer. For example, data can be transmitted back to the manufacturer in real time and flag a part from an independent supplier as incompatible.

Another common tactic is the use of “warranty void” stickers, which claim that repairs done by a third-party service will cancel the manufacturer’s product warranty. These practices have drawn widespread criticism for suppressing competition and encouraging planned obsolescence – and are among the main targets of right to repair advocates.

But consumers have a tool that’s widely underused: A 1975 law that prohibits voiding a warranty simply because an independent mechanic or a part from an independent vendor was used. This measure was designed to discourage the production or sale of low-quality products and sought to protect consumers from excessively restrictive coverage and bad-faith corporate negligence.

It was this law as well as several other consumer protections that the Biden administration’s FTC cited in 2024 when it warned several companies that they improperly restricted their warranty terms.

One reason consumers are largely unaware is that most find the text of warranty terms and the disclaimers difficult to read. And this isn’t an accident. Many manufacturers see warranties as sunk costs that should be avoided, and they have no incentives to clarify the terms or honor them.

Trust pays

Companies should rethink their approach to warranties – because it makes good business sense.

When manufacturers see they can no longer prevent third-party repairs, or offer warranties that are hard to redeem, it’s usually because they decide it’s more cost efficient to produce low-quality products. But that choice often cuts into the producer’s own profit while leaving the consumer worse off – and has a worse environmental impact, a recent study suggests.

Hyundai vehicles, including the Kona electric car, have built up customer loyalty through the flexible warranties offered by the automaker. AP Photo/Martin Meissner

A smarter option for manufacturers would be to establish a better, more efficient service network and offer more attractive warranty programs to retain customer loyalty.

Some companies have demonstrated that strong warranties pay off. Outdoor apparel maker Patagonia offers an “ironclad guarantee” to repair or replace its products for any reason. The “all mighty guarantee” offered by Osprey, which also manufactures outdoor gear, will repair or replace any damaged or defective product free of charge.

Then there’s retail giant Costco’s automatic extension of manufacturers’ warranties on major appliances and electronics – a major driver of its success.

Meanwhile, under the right to repair measures currently proposed, the post-purchase service and repair markets would likely get more competitive. New rules would let outside service providers and warranty companies gain better access to fix the products. Extended warranties and service contracts would then become even more prevalent, and manufacturers would need to become more vigilant.

Consumers also need more protection from the FTC, the top federal regulator tasked with consumer protection. Indeed, the right to repair movement reflects, in part, public disappointment that the government has failed to serve as a watchdog amid misleading corporate claims about warranty protections.

While the FTC has occasionally sued companies to protect consumer rights under the 1975 law, it has the legal tools to be more aggressive. Such a shift would not only change the corporate culture around warranties but send a message to consumers that warranties should work for them.

Enforcement, not just choice

If manufacturers embraced stronger warranty enforcement, consumers would benefit the most, provided they’re aware of what these protections entail. But manufacturers would come out ahead, too. By building up efficient service networks and offering more versatile warranties, they would remain competitive and foster customer loyalty, Hyundai being a good example.

The right to repair movement is in many ways a live policy experiment on expanding access to repair markets and giving consumers more choices. But more choices don’t necessarily lead to a better outcome. Coupling repair rights with stronger warranties and better enforcement is the best way a company can claim the prize it always says it wants: more satisfied consumers.

This article originally appeared on The Conversation. You can read it here.

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Photo credit: Xavier Desmier/Gamma-Rapho via Getty Images – In much of the industrialized world, daily life is increasingly organized around the nuclear family.

Civic Life, Society

Why fatherhood matters more than ever before

The growing power of present dads.

Good Partner

6/17/2026

Darby Saxbe

Long gone are the days of the distant dad.

According to some estimates, the average time dads spend caring for their kids each day has quadrupled over the past 50 years. Their attitudes about parenting are also changing. Today, men are about as likely as mothers to say parenting is a key source of meaning and a central priority in their lives. Roughly 85% of fathers identify parenthood as one of the most important aspects of their identity.

As a parenting researcher who focuses on fathers, I’m pleased to see that dads are so invested in their kids. It correlates with better outcomes for kids, and it reduces pressure on moms.

But there’s a less encouraging trend tucked into these gains. More is being asked of dads – and moms, for that matter – because the extended family and community networks that once supported childrearing have shrunk or deteriorated.

Parenting alone

In researching my new book, “Dad Brain: The New Science of Fatherhood and How it Shapes Men’s Lives,” I talked to an anthropologist named Barry Hewlett, who has spent his career studying hunter-gatherer fathers.

One society he studies, the Aka Pygmies of the Central Congo, have been called “the best fathers in the world” for their dedication to childcare. Aka men are frequently observed within arms reach of their infants and take a lead role in raising them. Children are seen as central to men’s lives.

However, if you compare the time Aka dads spent on childcare with recent data on American parents, as parenting writer Tomo Kumaki recently did, you might be surprised.

According to 2024 American Time Use Survey data – considered the gold standard of evidence on how Americans are spending their time – American dads of infants are devoting about 125 minutes a day to what’s called “primary child care,” in which their main activity is tending to the child. They’re spending another 394 minutes on what’s known as “secondary child care,” which involves watching a child while doing something else, such as cooking dinner or straightening up the house.

In contrast, according to Hewlett’s research from the field, Aka fathers of infants spend about 57 minutes a day on primary and 96 minutes a day on secondary childcare.

The minutes American dads relayed should be taken with a grain of salt; it’s a stretch to compare an anthropologist’s direct observations with self-reported time diary data, which can often be subject to bias. Still, it’s striking to see how – based on these calculations, at least – today’s new dads are devoting far more time to parenting than a society described as having the best dads in the world.

Among the Aka people, who are indigenous, nomadic hunter-gatherers native to Central Africa, men take a lead role in raising their children. Andia/Universal Images Group via Getty Images

When I spoke with him about how fatherhood has changed, Hewlett told me he thinks the role of fathers has taken on more importance today than ever before – not just because mothers are more likely to have jobs outside the home, but because there are simply fewer childcare helpers around.

When you’re surrounded by your kin and neighbors in a communal setting like the Aka, it’s easy to get assistance with kids. Fathers care for children, but so do lots of other people.

A 2021 study of another hunter-gatherer society, the Agta, which lives in the mountains of the Philippines, found that fathers provided only about 7% of child care. Mothers, however, provided only about 25%. The rest came from siblings, grandparents, extended family, peers and other community members, who all pitch in.

A class divide

In much of the industrialized world, daily life is organized around the nuclear family, with relatives and neighbors playing a less central role than they once did.

Today’s fathers contribute more to childcare than even the most hands-on hunter-gatherer dad, because there’s simply less of a village to support shared care.

Even as men are being asked to take on a bigger role in childcare, it’s become harder for some men to do so. That’s because – in the U.S., at least – the time men are able to spend on childcare has become increasingly stratified by class.

Journalists Derek Thompson and Aziz Sunderji analyzed multiple waves of U.S. data collected by the Multinational Time Use Study and were able to show that the significant rise in the time dads spend parenting over the past 60 years has primarily been driven by college-educated fathers.

When the Multinational Time Use Study started in the 1960s, fathers with a college degree were devoting only a few extra minutes per day to childcare compared with noncollege-educated dads. But the gap has quintupled over that time span, such that college-educated dads are now spending 46 more minutes with their kids each day compared with noncollege-educated dads.

So why the growing divide? In part, it’s because benefits such as universal paid paternity leave and stable, flexible work options are available only to dads with good jobs.

Only about half of U.S. fathers take any paid paternity leave following the birth of a new baby, because many employers don’t offer it. In theory, most dads who can’t access paid leave should be eligible for unpaid leave through the 1993 Family and Medical Leave Act. However, since that legislation doesn’t apply to small businesses or many part-time or gig work situations, about 44% of workers are ineligible for it. Low-wage dads are also often reluctant to take leave because they can’t afford to lose income.

The rise of what sociologists call intensive parenting among the most educated, affluent parents also helps account for some of the class divide in parenting time. As the wealth gap between the richest and poorest Americans has widened over the past 60 years, many parents have been eager to optimize their children’s success. Devoting extra time to children, including monitoring their schoolwork and enrolling them in enrichment activities that require time and money, has become one way for parents with privilege to give their children a leg up.

In my view, hands-on parenting should not be a luxury good. Americans should be fighting for policies that empower all dads, no matter their income, to enjoy time with their children. The village could use some rehabilitation, too, since parents fare best when they have access to community support and stronger connections with their neighbors, friends and family.

This article originally appeared on The Conversation. You can read it here.

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