Inspiring: Healing Our Earth News Articles
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America’s biggest “food forest” is just a short drive from the world’s busiest airport, Atlanta’s Hartsfield-Jackson. When the Guardian visits the Urban Food Forest at Browns Mill there are around a dozen volunteers working. Food forests are part of the broader food justice and urban agriculture movement and are distinct from community gardens in various ways. They are typically backed by grants rather than renting plots, usually rely on volunteers and incorporate a land management approach that has a focus on growing perennials. The schemes vary in how they operate in allocating food ... but they are all aimed at boosting food access. Organizers in Atlanta stress that they properly distribute the food to the neighborhoods that the food forest is intended to support and it’s not open to the public beyond volunteer workers. Other schemes have areas where the public is free to take what they want. Celeste Lomax, who manages community engagement at the Brown Mills forest and lives in the neighborhood, believes education is key to the forest’s success and beams like sunlight when sharing her vision for the fertile soil she tends. “We’re using this space for more than just growing food. We have composting, beehives, bat boxes, and this beautiful herb garden where we’re teaching people how to heal themselves with the foods we eat. We’ll be doing walkthrough retreats and outside yoga. This is a health and wellness place. It’s so much more than just free food.”
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In 1986, [Dr. Jane Goodall] attended a conference in Chicago with researchers studying chimps in six areas of Africa, and the reports of environmental devastation shocked Goodall. Her activism evolved quickly, from chimps, to their habitat to human welfare, and how animal rights and the future of the planet are inherently interconnected. Some of her decisions have been deemed controversial: her friendship with for US Secretary of State James Baker, her work with Conoco ... oil company to build a chimpanzee sanctuary, hard conversations with the National Institutes of Health regarding their medical research and testing practices on chimpanzees and visiting their labs. "I lost a lot of friends because of going into the labs, sitting down and talking to the people, organizing a conference to bring in the lab people, the scientists and also the animal welfare people ..."There were a lot of animal rights people who refused to speak to me — they said, 'Wow can you sit down with these evil people and have a cup of tea with them?' I was totally and completely flabbergasted. If you don’t talk to people, how can expect them to change?” When speaking to the NIH, “I didn’t stand there and accuse them of being cruel monsters. I showed slides and some film of the Gombe chimpanzees and talked about their lives, and then showed some slides of the chimps in the small cages and said, ‘You know, it’s like putting a person in a prison like that,’” said Goodall. “Many of the scientists said, ‘We really have never thought about this in this way’ a lot of them were actually crying." She stands by all of it because it produces results. It took decades, but the NIH phased out medical testing and research on chimpanzees. Conoco built the chimpanzee sanctuary, the Tchimpounga Chimpanzee Rehabilitation Center, saving all of the starving chimpanzees in the Brazzaville Zoo in the Republic of Congo. In this age of cancel culture and unprecedented political polarity, Goodall’s pragmatism, and insistence that arguing does not change minds but appealing to people’s hearts and to their better nature is what produces progress distinguishes her from contemporary activists.
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Tangles of grapes and blackberries grow in clusters along a trellis. Leafy rows of basil, sweet potatoes and mesclun spring from raised garden troughs. Most striking are corridors of elevated planters stacked four high, like multilevel bunk beds, filled with kale, cabbage, arugula, various lettuces, eggplants, tatsoi and collard greens. Run by a gardening wizard named Jamiah Hargins, this wee farm in the front yard of his bungalow provides fresh produce for 45 nearby families, all while using a tiny fraction of the water required by a lawn. At just 2,500 square feet, this farm forms the heart of Mr. Hargins’s nonprofit, Crop Swap LA, which transforms yards and unused spaces into microfarms. It runs three front yard farms that provide organic fruits and vegetables each week to 80 families, all living in a one-mile radius, and often with food insecurity. Rooted in the empowering idea that people can grow their own food, Crop Swap LA has caught on, with a wait list of 300 residents wanting to convert their yards into microfarms. The mini farms bring environmental benefits, thanks to irrigation and containment systems that capture and recycle rain. That allows the farms to produce thousands of pounds of food without using much water. “Some people pay $100 a month on their water because they’re watering grass, but they don’t get to eat anything, no one gets any benefit from it,” Mr. Hargins said. “I can’t think of a more generous gift to give to the community than to grow delicious, naturally organic food for the direct community,” [says Crop Swap LA subscriber] Katherine Wong. “This is one of the noblest things anyone is doing today.”
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Western Sikkim in India ... officially went 100 percent organic in 2016, and won what many regard as the Oscar for best public policies — the UN Food and Agriculture Organisation’s Future Policy Gold Award — in 2018. This change is necessary: An estimated 52 percent of agricultural land across the globe is moderately to severely degraded due to monoculture, chemical pesticide and fertilizer use, and groundwater extraction — and this will accelerate unless these practices change. Sikkim is India’s most sparsely populated state. Its mainly subsistence farms were, and continue to be, spread thinly across mountainous terrain, which makes supplying inorganic fertilizers expensive. Consequently, using homegrown organic manure and vermicompost (compost created from worm waste) was very much the norm. It also helped that the local populace already understood the value of organic food. “As children, we were taught that basti (local) vegetables grown without any chemical inputs by small farmers, were the best vegetables to eat,” says Renzino Lepcha, CEO of Mevedir, an organic agri-business and certification agency in Sikkim. [Former] chief minister Pawan Chamling wrote, “[W]e have not inherited this earth from our forefather but have borrowed it from our future generations, it is our duty to protect it by living in complete harmony with nature and environment.” Rain-fed agriculture has helped reduce the need for irrigation and conserve water. Some reports suggest that since 2014, bee populations have been rebounding, with yields of pollinator-dependent cardamom increasing by more than 23 percent.
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Leah Garcés considered Craig Watts her enemy. As CEO and president of the nonprofit Mercy for Animals, Garcés has devoted her life to protecting animals. When she met Watts in the spring of 2014 at his poultry farm in North Carolina, he was one those factory farmers she deeply despised. Watts had raised over 720,000 chickens in 22 years for Perdue, the fourth-largest chicken company in the US. He took out a $200,000 bank loan to build four giant chicken houses. Squeezed by Perdue’s profit margins, Watts struggled to pay the bills. Garcés realized that Watts was not her enemy, but an ally: Chicken farmers like him wanted to end chicken farming as much as she did. Yet because of his hefty loans, Watts saw no way out. Together, they released footage from the horrors of chicken farming in the New York Times. Watts has now become one of the poster farmers for the Transfarmation Project, which Garcés founded as an offshoot of the nonprofit Mercy for Animals in 2019. Ultimately, Garcés’s vision is not just “helping a few dozen farmers transition to a healthier and more sustainable model, it is about how we transition away entirely from factory farming.” The Transfarmation Project connects farmers with consultants and is producing resources and pilots to model successful transitions. In the same warehouse where Watts once had to kill chickens and where he and Garcés filmed the whistleblower video, he is now harvesting mushrooms.
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Patrick Burrichter did not think about saving lives or protecting the planet when he trained as a chef. But 25 years later he has focused his culinary skills on doing exactly that. On the outskirts of Berlin, Burrichter and his team cook for a dozen hospitals that offer patients a “planetary health” diet – one that is rich in plants and light in animals. Compared with the typical diet in Germany, known for its bratwurst sausage and doner kebab, the 13,000 meals they rustle up each day are better for the health of people and the planet. In Burrichter’s kitchen, the steaming vats of coconut milk dal and semolina dumpling stew need to be more than just cheap and healthy – they must taste so good that people ditch dietary habits built up over decades. The biggest challenge, says Burrichter, is replacing the meat in a traditional dish. Moderate amounts of meat can form part of a healthy diet, providing protein and key nutrients, but the average German eats twice as much as doctors advise. Patients on the wards of Waldfriede praise the choice of meals on offer. Martina Hermann, 75, says she has been inspired to cook more vegetables when she gets home. Followers of the planetary health diet need not abandon animal products altogether. The guidelines, which were proposed by 37 experts from the EAT-Lancet Commission in 2019, translate to eating meat once a week and fish twice a week, along with more wholegrains, nuts and legumes.
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In Cape Cod, Massachusetts ... hidden away from the picturesque beaches was the town landfill, including lagoons of toxic waste from septic tanks, which was being left to seep into the groundwater below. So [John] Todd, then a 45-year-old biologist, decided to design a solution. Next to the lagoons, he assembled a line of 15 clear-sided fiberglass tanks, each about the height of a person, and filled them with water containing all the different life forms he could find from local ponds, marshes and streams – plants, bugs, bacteria, fungi, general gunk. The water could be pumped from one tank to the next, and the living matter inside them soon organised itself into a series of different ecosystems. Todd found that he could put in polluted water from the lagoons at one end of the line of tanks and by the time it came out the other end, 10 days later, it was clean enough to drink. “To see that water, and to see all the organisms in the tanks, including fishes, looking and being so healthy, I was just amazed,” he says. Todd ... would later discover that various microorganisms were finding uses for the toxins and heavy metals. Todd calls it “biological intelligence”. Todd christened his invention the “eco-machine”, and spent the next four decades ... applying it to everything from treating wastewater to growing food to repairing damaged ecosystems. Todd founded his own ecological consultancy, Ocean Arks International. It has designed and built more than 100 eco-machine systems to treat problems of pollution, wastewater and food production around the world, from the US to China, Australia, Brazil and Scotland. Todd’s eco-machines are cheaper and more effective than industrial alternatives ... and are even capable of treating chemicals that have been impossible to break down using conventional methods, such as grades of crude oil and mining waste. They are also far more sustainable – powered almost entirely by sunlight.
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In a cavernous room filled with garbage, a giant mechanical claw reaches down and grabs five tons of trash. As a technician in a control room maneuvers the spiderlike crane, the claw drops its moldering harvest down a 10-story shaft into a boiler that is hotter than 1,500 degrees Fahrenheit. The process continues 24 hours a day to help fuel this power plant run by Tekniska Verken, a municipal government company in Linköping, a city 125 miles south of Stockholm. It is one of Sweden’s 34 “waste-to-energy” power plants. Instead of burning coal or gas, this power plant burns trash. Sweden is known for strikingly reducing the trash sent to its landfills. Less than 1 percent of household waste in this Scandinavian country finds it way to landfills, according to Avfall Sverige, the Swedish Waste Management and Recycling association. Trash accounts for a small portion of Sweden’s overall power supply; hydro and nuclear energy generate about 83 percent of Sweden’s electricity, and wind generates another 7 percent. But garbage supplies much of the heat during cold months for the country’s nearly 10 million residents. Energy from trash equals the heating demand of 1.25 million apartments and electricity for 680,000 homes, according to Avfall Sverige. Along with heat and electricity, Tekniska Verken produces methane biogas from 100,000 tons of food and organic waste each year. This biogas runs more than 200 city buses in the county, as well as fleets of garbage collection trucks, and some taxis and private cars.
Note: Why aren't other countries racing to embrace this amazing technology which remediates the huge trash problem? Explore a treasure trove of concise summaries of incredibly inspiring news articles which will inspire you to make a difference.
Geoengineering is a technological fix that leaves the economic and industrial system causing climate change untouched. The mindset behind geoengineering stands in sharp contrast to an emerging ecological, systems approach taking shape in the form of regenerative agriculture. More than a mere alternative strategy, regenerative agriculture represents a fundamental shift in our culture’s relationship to nature. Regenerative agriculture comprises an array of techniques that rebuild soil and, in the process, sequester carbon. Typically, it uses cover crops and perennials so that bare soil is never exposed, and grazes animals in ways that mimic animals in nature. It also offers ecological benefits far beyond carbon storage: it stops soil erosion, remineralises soil, protects the purity of groundwater and reduces damaging pesticide and fertiliser runoff. Yields from regenerative methods often exceed conventional yields. Likewise, since these methods build soil, crowd out weeds and retain moisture, fertiliser and herbicide inputs can be reduced or eliminated entirely, resulting in higher profits for farmers. No-till methods can sequester as much as a ton of carbon per acre annually. In the US alone, that could amount to nearly a quarter of current emissions. Ultimately, climate change challenges us to rethink our long-standing separation from nature. It is time to fall in love with the land, the soil, and the trees, to halt their destruction and to serve their restoration.
Note: Don't miss Kiss the Ground, a powerful documentary on the growing regenerative agriculture movement and its power to build global community, reverse the many environmental crises we face, and revive our connection to the natural world. Explore more positive stories like this in our comprehensive inspiring news articles archive focused on solutions and bridging divides.
The solution to stopping climate change might be buried on 10 acres in the Pauma Valley of California. “The idea is not just to produce food but to improve the soil,” says Alvarez, Solidarity Farm’s Climate Resilience Specialist. “We stopped using the plow to turn the soil, and we do a lot of composting and mulching to improve our soil health.” Solidarity Farm had used organic principles in the 10 years since its inception, but it pivoted to carbon farming after the extreme heat in the summer of 2017. Carbon farmers cultivate plants and trees in a way that maximizes carbon sequestration in the soil. Among the most important practices for carbon farmers are minimizing soil erosion by planting perennials and ground cover, which also lowers soil temperatures, and only working the land by hand or with low-tech solutions. “The soil has the capacity to store more carbon than all plants on the planet together,” Alvarez says. Solidarity Farms produces a diverse range of about 60 different fruits and vegetables, at least 70 percent of them perennial crops such as plums and pomegranates. Stacks of organic chicken manure in front of the vegetable beds wait to be distributed. The farmers enrich the soil with compost and mulch, while deterring pests with diverse crop rotation. According to soil tests, the Solidarity farmers have tripled the amount of carbon in the ground since 2018. “This equates to a drawdown of nearly 600 metric tons of CO2 per year, offsetting the emissions of 80 American households,” Alvarez says.
Note: Have you seen the groundbreaking and inspiring movie Kiss the Ground? In a time where we're told hopeless and divisive narratives about our current environmental challenges, people all over the world are reversing the damage from destroyed ecosystems, regenerating the world's soils, and creating abundant food supplies. Don't miss this powerful film on the growing regenerative agriculture movement and its power to revive global community and our connection to the natural world.
Last month, a small warehouse in the English city of Nottingham received the crucial final components for a project that leverages the power of used EV batteries to create a new kind of circular economy. Inside, city authorities have installed 40 two-way electric vehicle chargers that are connected to solar panels and a pioneering battery energy storage system, which will together power a number of on-site facilities and a fleet of 200 municipal vehicles. Each day Nottingham will send a combination of solar-generated energy — and whatever is left in the vehicles after the day’s use — from its storage devices into the national grid. What makes the project truly circular is the battery technology itself. Funded by the European Union’s Interreg North-West Europe Programme, the energy storage system, E-STOR, is made out of used EV batteries by the British company Connected Energy. After around a decade, an EV battery no longer provides sufficient performance for car journeys. However, they still can retain up to 80 percent of their original capacity, and with this great remaining power comes great reusability. “As the batteries degrade, they lose their usefulness for vehicles,” says Matthew Lumsden, chairman of Connected Energy. “But batteries can be used for so many other things, and to not do so results in waste and more mining of natural resources.” One study ... calculated that a second life battery system saved 450 tons of CO2 per MWh over its lifetime.
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For now, it’s only a gaping hole in the ground. But when construction is complete next April, the Lower Sioux—also known as part of the Mdewakanton Band of Dakota—will have a 20,000-square-foot manufacturing campus that will allow them to pioneer a green experiment, the first of its kind in the United States. They will have an integrated vertical operation to grow hemp, process it into insulation called hempcrete, and then build healthy homes with it. Right now, no one in the US does all three. Once the tribe makes this low-carbon material, they can begin to address a severe shortage of housing and jobs. Recapturing a slice of sovereignty would be a win for the Lower Sioux. They lost most of their lands in the 19th century, and the territory finally allotted to them two hours south of Minneapolis consists of just 1,743 acres of poor soil. That stands in contrast to the fertile black earth of the surrounding white-owned farmlands. Nearly half of the 1,124 enrolled members of the tribe need homes. “The idea of making homes that would last and be healthy was a no-brainer,” said Robert “Deuce” Larsen, the tribal council president. Leading the national charge on an integrated hempcrete operation is no mean feat, seeing that virtually no one in the community had experience with either farming or construction before the five-person team was assembled. Hemp can grow in a variety of climates. What’s more, hemp regenerates soil, sequesters carbon, and doesn’t require fertilizers.
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When wildfires burned across Northern California in October 2017, they killed at least 43 people and displaced another 100,000. The human toll alone was dire, but the fires also left behind a toxic mess. The charred detritus of paint, pesticides, cleaning products, electronics, pressure-treated wood, and propane tanks left a range of pollutants in the soilincluding arsenic, asbestos, copper, hexavalent chromium, lead, and zinc. In Sonoma County, a coalition of fire remediation experts, local businesses, and ecological activists mobilized to cleanse the foundations of burned-out buildings with mushrooms. The Fire Remediation Action Coalition placed more than 40 miles of wattlesstraw-filled, snakelike tubes designed to prevent erosioninoculated with oyster mushrooms around parking lots, along roads, and across hillsides. Their plan? The tubes would provide makeshift channels, diverting runoff from sensitive waterways. The mushrooms would do the rest. The volunteers, led by Sebastopol-based landscape professional Erik Ohlsen, are advocates for mycoremediation, an experimental bioremediation technique that uses mushrooms to clean up hazardous waste, harnessing their natural ability to use enzymes to break down foreign substances. Mushrooms [have been used to] clean up oil spills in the Amazon, boat fuel pollution in Denmark, contaminated soil in New Zealand, and polychlorinated biphenyls, more commonly known as PCBs, in Washington state’s Spokane River. Research suggests mushrooms can convert pesticides and herbicides to more innocuous compounds, remove heavy metals from brownfield sites, and break down plastic. They have even been used to remove and recover heavy metals from contaminated water. Research suggests mushrooms can convert pesticides and herbicides to more innocuous compounds, remove heavy metals from brownfield sites, and break down plastic.
Note: The stunningly beautiful documentary Fantastic Fungi takes you on an amazing journey through the wild and wonderful world of mushrooms. Explore a treasure trove of concise summaries of incredibly inspiring news articles which will inspire you to make a difference.
Researchers at ETH Zurich have designed a sustainable method to extract gold from electronic waste using a byproduct of cheese production. Electronic devices, from smartphones to laptops, contain small amounts of gold due to its excellent conductivity and resistance to corrosion. With the rapid turnover of electronic gadgets, e-waste has become the fastest-growing waste stream globally, reaching 62 million tonnes in 2022, and only 22.3 percent of this was formally collected and recycled, leaving vast amounts of valuable materials unused. Professor Raffaele Mezzenga and scientist Mohammad Peydayesh led the ETH Zurich team in developing a method that utilizes “whey”, the liquid byproduct of cheese-making. By processing whey proteins into amyloid fibrils, they created a sponge-like aerogel capable of selectively absorbing gold ions from acidic solutions derived from e-waste. Professor Mezzenga stated, "The fact I love the most is that we're using a food industry byproduct to obtain gold from electronic waste. You can't get much more sustainable than that!" In laboratory tests, this aerogel successfully extracted gold from dissolved computer motherboards. The sponge drew out gold that was about 90.8 percent pure, yielding a 22-carat nugget weighing approximately 450 milligrams. The research team is also exploring the use of other food industry byproducts, like pea protein and fish collagen, to diversify the sources of the aerogel. The process is economically viable, with operational costs significantly lower than the market value of the recovered gold, unlike traditional gold extraction techniques that rely on toxic chemicals like cyanide.
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When Marco de Kat starts planning his meals, he doesn’t need to travel far for fresh food. Right outside his house is an 800 square metre plot with all sorts of produce – apples, pears, peppers, basil, beets and cauliflower, to name a few. Oosterwold, where de Kat has lived since 2017, is a 4,300 hectare (10,625 acre) urban experiment located east of Amsterdam, in a suburb of the city of Almere, where de Kat works as a municipal councillor. The area, which has about 5,000 residents and a growing waiting list, is completely self-sufficient. Residents can build houses however they like, and must collaborate with others to figure out things such as street names, waste management, roads, and even schools. But the local government has included one extremely unusual requirement: about half of each plot must be devoted to urban agriculture. Some, like de Kat, have turned their gardens into an Eden of sorts to provide for their own household unit. Other residents just plant a few apple trees or outsource by owning plots of land on site that are tended to by professional farmers. Others, such as Jalil Bekkour, have been able to capitalise on it. “I never had experience gardening my own food or anything like that,” he said. But he taught himself how to garden, and three years ago he opened his own restaurant, Atelier Feddan, where 80% of the food is directly from Oosterwold. His newfound excitement for gardening and agriculture is palpable.
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In most of Europe, fitting a heat pump is one of the most powerful actions a person can take to reduce their carbon footprint. But in Norway, where clean-yet-inefficient electrical resistance heaters have long been common, upgrading to a heat pump is often a purely financial decision. Two-thirds of households in this Nordic country of 5 million people have a heat pump, more than anywhere else in the world. For many years, Norwegians and their neighbours heated their homes with fossil fuels. But during the 1973 oil crisis, when prices shot up, the country’s political leaders made a conscious choice to promote alternatives. “Norway ensured early on that fossil-fuel heating was the most expensive option, making heat pumps cost competitive,” said Dr Jan Rosenow from the Regulatory Assistance Project, a thinktank that works to decarbonise buildings. “They did this by taxing carbon emissions from fossil heating fuels. That’s been the key to incentivise heat pump adoption.” Norway also trained up a workforce to install them. Heat pumps’ efficiency has been increased over decades, partly because of the early adopters in Nordic countries who tinkered away to the point where a modern version can deliver three to five units of heat for every unit of electricity used to power it. An efficient gas boiler, on the other hand, can only produce as much heat as the energy contained in the fuel being burned. A heat pump will have a smaller carbon footprint than a gas boiler even when plugged into an electricity grid.
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Natural disasters like earthquakes and hurricanes can level entire towns, and for the search and rescue teams trying to find survivors, it’s a painstaking task. But an unlikely savior is being trained up to help out: rats. The project, conceived of by Belgian non-profit APOPO, is kitting out rodents with tiny, high-tech backpacks to help first responders search for survivors among rubble in disaster zones. “Rats are typically quite curious and like to explore – and that is key for search and rescue,” says Donna Kean, a behavioral research scientist and leader of the project. In addition to their adventurous spirit, their small size and excellent sense of smell make rats perfect for locating things in tight spaces, says Kean. The rats are currently being trained to find survivors in a simulated disaster zone. They must first locate the target person in an empty room, pull a switch on their vest that triggers a beeper, and then return to base, where they are rewarded with a treat. While the rodents are still in the early stages of training, APOPO is collaborating with the Eindhoven University of Technology to develop a backpack, which is equipped with a video camera, two-way microphone, and location transmitter to help first responders communicate with survivors. APOPO has been training dogs and rats at its base in Tanzania in the scent detection of landmines and tuberculosis for over a decade. Its programs use African Giant Pouched Rats, which have a longer lifespan in captivity of around eight years.
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For the past couple of years, I’ve been working with researchers in northern Greece who are farming metal. They are experimenting with a trio of shrubs known to scientists as “hyperaccumulators”: plants which have evolved the capacity to thrive in naturally metal-rich soils that are toxic to most other kinds of life. They do this by drawing the metal out of the ground and storing it in their leaves and stems, where it can be harvested like any other crop. As well as providing a source for rare metals – in this case nickel, although hyperaccumulators have been found for zinc, aluminium, cadmium and many other metals, including gold – these plants actively benefit the earth by remediating the soil, making it suitable for growing other crops, and by sequestering carbon in their roots. Hyperaccumulators are far from being the only non-humans that we might learn from. Physarum polycephalum, a particularly lively slime mould, can solve the “travelling salesman” problem – a test for finding the shortest route between multiple cities – faster and more efficiently than any supercomputer humans have devised. Spiders store information in their webs, using them as a kind of extended cognition: a mind outside the body entirely. A new conception of intelligence is emerging from scientific research: rather than human intelligence being unique or the peak of some graduated curve, there appear to be many different kinds of intelligence with their own strengths, competencies and suitabilities.
Note: This was written by James Bridle, an artist and technologist who was able to paralyze a self-driving car using salt and road markers. For more on his work, check out his fascinating perspective on how artificial intelligence technologies could be designed based on cooperation and relationships naturally reflected in living systems, as opposed to competition and domination.
How giant African rats are helping uncover deadly land mines in Cambodia
September 10, 2019, PBS
https://www.pbs.org/newshour/show/how-giant-african-rats-are-helping-uncover...
From Angola to the former Yugoslavia, land mines are a lethal legacy of wars over long ago. Cambodia is among the most affected countries, with millions of buried explosives that kill and maim people each year. Now, an organization is deploying an unexpected ally to find mines: the giant pouch rat, whose sharp sense of smell can detect explosives. Mark Shukuru is head rat trainer in Cambodia for the Belgian non-profit APOPO. He is from Tanzania, where this species is also native, and he learned early that they have some of the most sensitive noses in the animal kingdom. Each comes out of a rigorous program in Tanzania that trains them to distinguish explosives from other scents. Each time they sniff out TNT buried in this test field, a trainer uses a clicker to make a distinct sound, and they get a treat. Since 2016, APOPO's hero rats have found roughly 500 anti-personnel mines and more than 350 unexploded bombs in Cambodia. They're the second animal to be deployed in mine clearance. Dogs were first. Animals can work much faster than humans, although, when the land is densely mined, metal detectors are considered more efficient. APOPO plans to bring in some 40 more rats to expand the force and replace retirees. Each animal works about eight years, and then lives out the rest of its days alongside fellow heroes, all working toward the day when they can broadcast to the world that Cambodia has destroyed the last unexploded bomb.
Note: Don't miss the cute video of these hero rats at work, available at the link above. Explore a treasure trove of concise summaries of incredibly inspiring news articles which will inspire you to make a difference.
Biomimicry is grounded in the concept that nature, with its 3.8 billion years of evolution, has already solved many of the problems we grapple with today. Animals, plants, and microbes are the consummate engineers. Rather than designing new technology from scratch, scientists and engineers often look to nature for inspiration. In its approach, biomimicry involves three essential aspects: Emulating natural forms, mimicking natural processes, and imitating ecosystems. Nature operates under specific principles: it runs on sunlight, uses only the energy it needs, fits form to function, recycles everything, rewards cooperation, banks on diversity, demands local expertise, curbs excesses from within, and taps the power of limits. By aligning our technologies and practices with these principles, we can create not only innovative but also sustainable solutions to our challenges. Architects and engineers are designing buildings that mimic termite mounds, which maintain constant temperature despite external fluctuations. This biomimetic approach reduces energy consumption for heating and cooling. The self-cleaning properties of lotus leaves have inspired a whole range of products. The microscopic structure of a lotus leaf repels water and dirt particles. Today, we have self-cleaning paints and fabrics based on this principle. The bumps on the fins of humpback whales, called tubercles, increase their efficiency in water. Applying this concept to the design of wind turbines has led to blades that produce power more efficiently. Corals can heal themselves by producing an organic mineral in response to physical damage. Scientists have mimicked this process to create a type of concrete that can "heal" its own cracks.
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