LOGICAL SOLUTION TO MASSIVE BEE DIE-OFFS? WHY ROBOT BEES, OF COURSE
all in the name of muh carbon footprint
Robotic Bees Could Support Vertical Farms Today and Astronauts Tomorrow
The buzzy industry of robotic pollinators is setting its sights on indoor farms for urban—and extraterrestrial—environments
In vertical farming operations, artificial lights and artificial intelligence coax plants, stacked densely on towering shelves rather than spread over a field, to grow indoors with minimal human intervention. That’s the goal. But despite lofty promises of bringing fresh produce to local markets, these systems have not yet provided a climate-friendly way to feed the world’s growing population. Can robotic “bees,” a buzzy technology straight out of science fiction, rescue these high-tech operations?
The world’s first commercial vertical farm opened in Singapore in 2012. More businesses cropped up in the following years, with major players such as Infarm and AeroFarms securing hundreds of millions in funding over the next decade. With the help of sustainable systems such as hydroponics, as well as artificial intelligence to closely monitor plant growth and water usage, some companies and experts claim these futuristic farms could tackle global food insecurity—without the massive land and water footprint of conventional operations.
These farms “have the potential to contribute a meaningful amount to our diets,” says Thomas Graham, who researches controlled environment agriculture at the University of Guelph in Ontario. And companies can place them nearly anywhere.
Many vertical farms’ hopes have dried up over the past year, however. Recent inflation and worldwide skyrocketing energy prices, fueled by Russia’s invasion of Ukraine, rendered these farms’ near-constant electricity demand unaffordable. This past fall Infarm announced it was laying off more than half of its employees, and AeroFarms recently filed for bankruptcy. Meanwhile other vertical farm ventures are also facing financial challenges.
It doesn’t help that vertical farms currently have a limited range of offerings; most grow only greens such as lettuce and herbs because they use low amounts of water and are relatively easy to cultivate indoors via hydroponics thanks to their speedy development. “Some of the work we’re doing is moving past just leafy greens,” Graham says. “You can’t feed the world on lettuce.”
To truly take on food insecurity, vertical farms must expand their offerings, and that means finding a way to bring pollinators into high-tech indoor farming operations. Around one third of the crops we eat require pollinators such as bees and bats to grow. It’s difficult to get the job done in a vertical farm because domesticated honeybees, one of the most popular pollinators for commercial growers, have trouble navigating under artificial light, and pollinating by hand is extremely time intensive and thus expensive. To solve the problem, researchers have been working on robotic pollinators for more than a decade. But such pollinators have only recently made their way to universities and commercial operations.
Bee Bots to the Rescue
Bots aren’t new to farms. Since the mid-20th century researchers have explored ways to automate agriculture, including tractors with automated steering. By the 1980s and 1990s, engineers had begun tinkering with task-specific devices such as a robotic melon harvester and tomato-picking robots. Companies are now developing autonomous bots to harvest a variety of produce, and some devices can also accomplish additional tasks, including weeding, pesticide spraying and disease monitoring. Artificial intelligence helps most of these tools organize and process information from their onboard sensors—often multispectral cameras, which can pick up on differences in the types of light reflected by plants. Those differences provide clues about a crop’s health, such as ripeness in fruit or signs of damage.
Although most agricultural-machine research still focuses on produce-picking bots, more teams are now aiming to automate pollination as well, says Mahla Nejati, a research fellow at the University of Auckland in New Zealand, who works on farming-oriented robotics and AI systems. For her Ph.D. project, Nejati developed the computer vision system for an autonomous kiwi- and apple-picking bot designed for orchards. Eventually, her colleagues had a revelation: because they were already picking robotically, it would have been “better to have started earlier with the pollination,” Nejati says.
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https://www.scientificamerican.com/article/robotic-bees-could-support-vertical-farms-today-and-astronauts-tomorrow/