Skip to main content

Earth has a food waste problem. Can giant, solar-powered refrigerators help?

Will Hawkins/Digital Trends

This article is part of The Food Fight, a series that explores how the United Nations’ World Food Programme is using technology to battle food scarcity and put an end to hunger by 2030.

Hunger is one of the most prominent issues humans face worldwide. According to the Food and Agriculture Organization, more than 820 million people currently suffer from a lack of food. That’s roughly one in nine people that go hungry every single day.

Since 2015, the number of people affected by the world’s food security epidemic has grown by about 35 million, with those living in developing countries impacted by it the most. Poverty, food shortages, and climate change all contribute to the issue, but one major issue plays a role in all of those factors — food waste.

Getty

Developing countries in Africa, Asia, and Latin America lose about 40% of their food after harvesting and during processing. And 45% of the spoilage is a result of a lack of cold storage. If that sounds like needless food waste, that’s because it is. It’s an issue that can’t be easily remedied by purchasing a fridge as we do here in the states. With 840 million people having no access to electricity, and many of them living in poverty, the answer to this problem isn’t so crystal clear.

Fortunately, a little invention called ColdHubs could be a solution.

Solar-powered refrigerators

Maybe electric refrigerators don’t work. That’s fine. They aren’t all that great for the environment anyway. But what if we ditched the Freon and made them solar-powered? ColdHubs does exactly that.

Using cheap and readily-available insulated panels, these solar-powered walk-in cold rooms provide a temperate place for farmers to store their vegetables, fruits, and other perishable foods. Using a “flexible pay-as-you-store subscription” to sustain the stations, farmers can stash away their produce neatly in the reusable crates, dramatically increasing shelf life from two days to 21 days.

Cold Hubs

ColdHubs estimates it can decrease food waste by a whopping 80%. This will help local farmers increase their income, and bring more nutrition-rich foods to hungry people in the countries that need it most. With up to 80% of the food in the developing world provided by small farms, ColdHubs is not only trying to curb hunger in these countries but is also supporting global markets (you can thank them for that smoothie you had for breakfast later).

ColdHubs estimates it will decrease food waste by a whopping 80%.

It is also creating more job opportunities for women. ColdHubs primarily hires women to work at its stations, which may seem like a small gesture, but it’s actually a big step toward a much more important goal. The FAO reports that by giving women farmers access to the same resources as men, the number of people starving globally could drop by 100 million to 150 million. Now, who said the future isn’t female?

Extending support

Founded in Nigeria by farmer/innovator Nnaemeka C. Ikegwuonu, ColdHubs is first doing its work in Africa with the hope it can extend its support to other developing countries in the world.

Cold Hubs

“We are home to the largest tomato production belt in west Africa, yet farmers are losing more than 50% of their crops due to lack of cold storage. So we came up with solar-powered, walk-in cold rooms which can extend the life of food up to 21 days, and my goal is to push these hubs to all developing countries.” Ikegwuonu told The Guardian.

With help from the German Society of Refrigeration and Air Conditioning, the solar-powered refrigerators use powerful batteries that when fully charged, have the ability to run a unit for up to three days without sunlight, increasing a ColdHubs’ ability to thrive in even the most overcast of locations.

ColdHubs is just one of the many ways people are helping tackle the world’s problems with hunger. If you’re interested in learning more, several organizations like the United Nations Development Programme, UNICEF, World Food Programme, Food and Agriculture Organization, Feed the Future, and the International Fund for Agriculture and Development have initiatives that inform and take steps toward causes directly related to improving food security for people all over the world.

Editors' Recommendations

Felicia Miranda
Former Digital Trends Contributor
Born in '89 and raised through the 90s, I experienced what I consider to be the golden age of video games. At an early age, I…
Digital Trends’ Top Tech of CES 2023 Awards
Best of CES 2023 Awards Our Top Tech from the Show Feature

Let there be no doubt: CES isn’t just alive in 2023; it’s thriving. Take one glance at the taxi gridlock outside the Las Vegas Convention Center and it’s evident that two quiet COVID years didn’t kill the world’s desire for an overcrowded in-person tech extravaganza -- they just built up a ravenous demand.

From VR to AI, eVTOLs and QD-OLED, the acronyms were flying and fresh technologies populated every corner of the show floor, and even the parking lot. So naturally, we poked, prodded, and tried on everything we could. They weren’t all revolutionary. But they didn’t have to be. We’ve watched enough waves of “game-changing” technologies that never quite arrive to know that sometimes it’s the little tweaks that really count.

Read more
Digital Trends’ Tech For Change CES 2023 Awards
Digital Trends CES 2023 Tech For Change Award Winners Feature

CES is more than just a neon-drenched show-and-tell session for the world’s biggest tech manufacturers. More and more, it’s also a place where companies showcase innovations that could truly make the world a better place — and at CES 2023, this type of tech was on full display. We saw everything from accessibility-minded PS5 controllers to pedal-powered smart desks. But of all the amazing innovations on display this year, these three impressed us the most:

Samsung's Relumino Mode
Across the globe, roughly 300 million people suffer from moderate to severe vision loss, and generally speaking, most TVs don’t take that into account. So in an effort to make television more accessible and enjoyable for those millions of people suffering from impaired vision, Samsung is adding a new picture mode to many of its new TVs.
[CES 2023] Relumino Mode: Innovation for every need | Samsung
Relumino Mode, as it’s called, works by adding a bunch of different visual filters to the picture simultaneously. Outlines of people and objects on screen are highlighted, the contrast and brightness of the overall picture are cranked up, and extra sharpness is applied to everything. The resulting video would likely look strange to people with normal vision, but for folks with low vision, it should look clearer and closer to "normal" than it otherwise would.
Excitingly, since Relumino Mode is ultimately just a clever software trick, this technology could theoretically be pushed out via a software update and installed on millions of existing Samsung TVs -- not just new and recently purchased ones.

Read more
AI turned Breaking Bad into an anime — and it’s terrifying
Split image of Breaking Bad anime characters.

These days, it seems like there's nothing AI programs can't do. Thanks to advancements in artificial intelligence, deepfakes have done digital "face-offs" with Hollywood celebrities in films and TV shows, VFX artists can de-age actors almost instantly, and ChatGPT has learned how to write big-budget screenplays in the blink of an eye. Pretty soon, AI will probably decide who wins at the Oscars.

Within the past year, AI has also been used to generate beautiful works of art in seconds, creating a viral new trend and causing a boon for fan artists everywhere. TikTok user @cyborgism recently broke the internet by posting a clip featuring many AI-generated pictures of Breaking Bad. The theme here is that the characters are depicted as anime characters straight out of the 1980s, and the result is concerning to say the least. Depending on your viewpoint, Breaking Bad AI (my unofficial name for it) shows how technology can either threaten the integrity of original works of art or nurture artistic expression.
What if AI created Breaking Bad as a 1980s anime?
Playing over Metro Boomin's rap remix of the famous "I am the one who knocks" monologue, the video features images of the cast that range from shockingly realistic to full-on exaggerated. The clip currently has over 65,000 likes on TikTok alone, and many other users have shared their thoughts on the art. One user wrote, "Regardless of the repercussions on the entertainment industry, I can't wait for AI to be advanced enough to animate the whole show like this."

Read more