An anonymous reader quotes a report from the BBC: A large facility capable of extracting significant amounts of carbon dioxide from the air is being planned for north east Scotland. The proposed plant would remove up to one million tonnes of CO2 every year -- the same amount taken up by around 40 million trees. The extracted gas could be stored permanently deep under the seabed off the Scottish coast. This Direct Air Capture (DAC) plan is a joint project between UK firm Storegga and Canadian company Carbon Engineering. It's at a very early stage of development -- today's announcement is the beginning of the engineering and design of the plant. A feasibility study has already been carried out and if everything goes well, the facility would be operational by 2026. Storegga say up to 300 jobs would be created in the construction phase. However there are many hurdles, including planning and finance -- and a site for the plant won't be selected until next year. If it does go ahead it would be the biggest DAC facility in Europe and depending on the final configuration, could be the biggest in the world. Why Scotland? The companies cite the country's skilled workforce needed to operate a DAC facility, given their abundant renewable energy sources. The country also has pipelines going out under the sea to allow the permanent burial of the captured carbon.

The New York Times reports that for years, Uber and other ride-hailing companies "offered the promise of entrepreneurship to drivers" to drivers eager to set their own schedules. "But some drivers never received the control and independence they had expected." They struggled with the costs of vehicle maintenance, loans and insurance, and they questioned whether Uber and Lyft paid a fair wage. Legislative efforts to grant them employment benefits were thwarted.

Now, dissatisfied drivers and labor advocates are forming worker-owned cooperatives in an attempt to take back some of the money — and power — in the gig economy.

The Drivers Cooperative, which opened for business in New York this week, is the most recent attempt. The group, founded by a former Uber employee, a labor organizer and a black-car driver, began issuing ownership shares to drivers in early May and will start offering rides through its app on Sunday. The cooperative has recruited around 2,500 drivers so far and intends to take a smaller commission than Uber or Lyft and charge riders a lower fare.

It is an ambitious plan to challenge the ride-hailing giants, and it faces the same hurdles that tend to block other emerging players in the industry: Few have the technical prowess, the venture capital dollars or the supply of readily available drivers to subvert an established company like Uber. Still, drivers who joined the effort said even a small cooperative could make a big difference in their work, allowing them to earn more money and have a say in the way the company was run. The Drivers Cooperative said it planned to pay 10 percent above the wage minimums set by the city's Taxi and Limousine Commission, and return profits to drivers in the form of dividends.
One of the labor organizers who founded the Drivers Cooperative tells the Times that "I've never seen this hunger for change that exists with drivers."

Regulators in Brussels are struggling to gather enough evidence to bring antitrust charges against Amazon, despite working on the landmark case for nearly two years,
Financial Times reported Thursday, citing people with direct knowledge of the matter. From a report: In July 2019, EU regulators accused the online retailer of manipulating its algorithm to boost its own products "artificially" over its rivals'. As a result, they alleged, users often end up buying lower-quality products at a higher price. But EU officials are still struggling to understand how Amazon's algorithm works, despite sending a series of detailed questions to the company about the criteria used to boost a product's visibility, according to people familiar with the matter.

These people added that officials are also unlikely to be able to view the online retailer's proprietary code directly to build their case, owing to legal barriers around trade secrets. Antitrust investigators frequently face hurdles in navigating the "black boxes" of technology companies' code. "Cases involving algorithms are complex," said a Brussels-based legal expert. "But the EU doesn't have to dictate how a computer code works. It is for the company that uses the algorithm to deliver a fair result." However multiple people noted that the EU's case against Amazon is proceeding more slowly than other comparable investigations. The bloc is already set to bring charges against Apple over alleged abuse of its dominant platform in music streaming, for instance, after a two-year-long probe.

LG's battery division is planning to build advanced battery cells for Tesla's electric vehicles in 2023 and is considering potential production sites in the U.S. and Europe, according to Reuters. From the report: Tesla has not yet agreed to a deal that would expand LG's role in its supply chain beyond China, one of the sources said. Last week, the Korean battery maker told Korean reporters it plans to build a U.S. factory where it would make battery cells for EVs and energy storage systems, to cater to U.S. and global customers as well as startups. It did not identify potential customers then, but one of the sources said it was hoping Tesla would buy the batteries.

In September, Tesla Chief Executive Elon Musk announced an ambitious plan to develop new cells in-house, prompting suppliers like LG and Panasonic to embrace the unproven technology or face risks of losing a major customer for the longer term. The Korean supplier, a unit of LG Chem, has made samples for the so-called 4680 large-format cylindrical cells, said the sources, who asked not to be identified. It faces technological hurdles and the challenge of scaling up production, people familiar with the matter said.

"LG plans to produce 4680 cells at its new U.S. factory. They plan to build a new 4680 cell line to supply Tesla's Giga Berlin in Europe," one of the sources said, adding Spain is one of candidate for the European plant. One of the sources said LG has never mass produced such large-format cylindrical cells, although increasing battery capacity is the correct call. "Tesla is a major customer, and LG can take risks," another source said. He said LG has not yet secured orders from Tesla for the 4680 cells, still under development. For now, Tesla is sharply boosting orders for 2170 cells used in the Model 3 and Model Y vehicles made in China, the source said.

An anonymous reader quotes a report from Reuters: Bitcoin rose nearly 7% on Monday as risk assets rallied after last week's bond rout cooled, with Citi saying the most popular cryptocurrency was at a "tipping point" and could become the preferred currency for international trade. With the recent embrace of the likes of Tesla and Mastercard, bitcoin could be at the start of a "massive transformation" into the mainstream, the investment bank said. Goldman Sachs, meanwhile, has restarted its cryptocurrency trading desk and will begin dealing bitcoin futures and non-deliverable forwards for clients next week, a person familiar with the matter told Reuters.

Bitcoin, which hit a record high of $58,354 in February, could in the future become the preferred currency for international trade or face a "speculative implosion," Citi said. "There are a host of risks and obstacles that stand in the way of bitcoin progress," Citi's analysts wrote. "But weighing these potential hurdles against the opportunities leads to the conclusion that bitcoin is at a tipping point."

Bitcoin's recent performance has come with the growing involvement of institutional investors in recent years, contrasting with its heavy retail investor focus for most of the past decade, Citi said. If businesses and individuals gain access via digital wallets to planned central bank digital cash and so-called stablecoins, bitcoin's global reach, traceability and potential for quick payments would see it "optimally positioned" to become the preferred currency for international trade, Citi added. Such a dramatic transformation to the de facto currency of world trade -- a status currently held by the dollar -- would depend on changes to bitcoin's market to allow wider institutional participation and closer oversight by financial regulators, Citi said. Still, shifts in the macroeconomic environment could also make the demand for bitcoin less pressing, it added.

The Bay Area Newsgroup reports: Despite high salaries and world-class amenities, San Jose is the least affordable place for tech workers to buy a home. [Alternate URL here] A new analysis by the American Enterprise Institute found the typical tech worker and his or her partner — with two incomes totaling $200,000 — can afford just 12 percent of the homes for sale in the San Jose metro area.

The picture in San Francisco and the East Bay is nearly as bad, with just 21 percent of homes for sale fitting in the budget of an average tech couple. The high-hurdles to home ownership are fueling a Bay Area exodus that has contributed to the state's sluggish population growth in recent years, researchers say. Study author Ed Pinto, director of the AEI Housing Center, said tech workers can afford their pick of homes in almost every other U.S. city. "But in those places like San Jose, San Francisco and Los Angeles," he said, "that is not the case."

The analysis gives another explanation for the Bay Area exodus. And it's not only workers who are leaving. Tech heavyweights HPE and Oracle have announced moves of their headquarters from Silicon Valley to Texas. Pinto believes the spread of remote work will only accelerate migration from the Bay Area. With new workplace flexibilities, tech workers have a choice between high-cost regions near their offices and low-cost regions with bigger houses and remote work. "Work from home is winning," he said.

Apple's first crack at a headset is designed to be a pricey, niche precursor to a more ambitious augmented reality product that will take longer to develop, Bloomberg reported Thursday, citing people with knowledge of the matter. From the report: The initial device has confronted several development hurdles and the company has conservative sales expectations, illustrating how challenging it will be to bring this nascent consumer technology to the masses. As a mostly virtual reality device, it will display an all-encompassing 3-D digital environment for gaming, watching video and communicating. AR functionality, the ability to overlay images and information over a view of the real world, will be more limited. Apple has planned to launch the product as soon as 2022, going up against Facebook's Oculus, Sony's PlayStation VR and headsets from HTC, the people said. They asked not to be identified discussing private plans.

Apple's typical playbook involves taking emerging consumer technology, such as music players, smartphones, tablets and smartwatches, and making it reliable and easy to use for everyone. This time, though, Apple isn't looking to create an iPhone-like hit for its first headset. Instead, the company is building a high-end, niche product that will prepare outside developers and consumers for its eventual, more mainstream AR glasses. The plans suggest that Apple's first headset will be far more expensive than those from rivals, which cost about $300 to $900. Some Apple insiders believe the company may sell only one headset per day per retail store. Apple has roughly 500 stores, so in that scenario, annual sales would be just over 180,000 units -- excluding other sales channels. That would put it on par with other pricey Apple products, such as the $5,999 Mac Pro desktop computer.

An anonymous reader quotes a report from The Guardian: In one of its last strikes against the American wilderness, Donald Trump's administration will on Wednesday auction off portions of the Arctic national wildlife refuge to oil drillers. The lease sales are the climax to one of the nation's highest-profile environmental battles. The lands on the northern coastal plain of Alaska are home to denning polar bears and migrating herds of Porcupine caribou that indigenous communities depend on and consider sacred. But the oil industry has long suspected that the ground beneath the plain holds billions of barrels of petroleum.

Once the leases in the refuge, known as ANWR, are sold to energy companies, they would be difficult to claw back. The incoming president, Joe Biden, could, however, discourage development in the refuge by putting regulatory hurdles in the way of drillers. The refuge has become central to America's debate over how quickly to stop drilling for and burning fossil fuels as the climate crisis accelerates. Climate experts say there should be no new oil and gas extraction, as the world is already more than 1C hotter than pre-industrial times. Even if humans stopped using fossil fuels today, the planet would continue to heat. [...] On Monday, the Trump administration also dramatically expanded the area where the government can lease public land for oil drilling to the west of ANWR. The plan would allow drilling in 82% of the National Petroleum Reserve-Alaska, an area bigger than the state of West Virginia, according to environmental groups, though the Biden administration could reverse that decision more easily than it could hold off drilling in ANWR.

Residents of Shenzhen saw truly driverless cars on the road today. From a report: AutoX, a four-year-old startup backed by Alibaba, MediaTek and Shanghai Motors, deployed a fleet of 25 unmanned vehicles in downtown Shenzhen, marking the first time any autonomous driving car in China tests on public roads without safety drivers or remote operators. The cars, meant as robotaxis, are not yet open to the public, an AutoX spokesperson told TechCrunch. The milestone came just five months after AutoX landed a permit from California to start driverless tests, following in the footsteps of Waymo and Nuro. It also indicates that China wants to bring its smart driving industry on par with the U.S. Cities from Shenzhen to Shanghai are competing to attract autonomous driving upstarts by clearing regulatory hurdles, touting subsidies and putting up 5G infrastructure. As a result, each city ends up with its own poster child in the space: AutoX and Deeproute.ai in Shenzhen, Pony.ai and WeRide in Guangzhou, Momenta in Suzhou and Baidu's Apollo fleet in Beijing, to name a few. The autonomous driving companies, in turn, work closely with traditional carmakers to make their vehicles smarter and more suitable for future transportation.

Facebook will soon be the latest tech giant to enter the world of cloud gaming. Their approach is different than what Microsoft or Google has built, but Facebook highlights a shared central challenge: dealing with Apple. From a report: Facebook is not building a console gaming competitor to compete with Stadia or xCloud; instead, the focus is wholly on mobile games. Why cloud stream mobile games that your device is already capable of running locally? Facebook is aiming to get users into games more quickly and put less friction between a user seeing an advertisement for a game and actually playing it themselves. Users can quickly tap into the title without downloading anything, and if they eventually opt to download the title from a mobile app store, they'll be able to pick up where they left off. Facebook's service will launch on the desktop web and Android, but not iOS due to what Facebook frames as usability restrictions outlined in Apple's App Store terms and conditions.

[...] For a user downloading a lengthy single-player console epic, the short pitstop is an inconvenience, but long-time Facebook gaming exec Jason Rubin says that the stipulations are a non-starter for what Facebook's platform envisions, a way to start playing mobile games immediately without downloading anything. "It's a sequence of hurdles that altogether make a bad consumer experience," Rubin tells TechCrunch.

An anonymous reader shares a report: The first requests that upended Seesaw, a popular classroom app, came in January from teachers and education officials abroad. Their schools were shutting down because of the coronavirus, and they urgently wanted the app adjusted for remote learning. The company figured it could do that with a single short hackathon project. "We were so naive," said Emily Voigtlander Seliger, a Seesaw product manager. Weeks later, reality hit: The virus spread to the United States, where more of the app's users are. Seesaw had been designed for students in a classroom to submit an audio comment or a digital drawing after a lesson. But thousands of teachers suddenly wanted it to work as a full-featured home learning tool. Rather than using Seesaw for a couple of assignments a week, they were using it for hours each day. It seemed like every start-up's dream: racing to keep up with demand from people desperate for your app. And in many ways, that has worked out well for Seesaw, a San Francisco company. The number of student posts on its app increased tenfold from February to May, Seesaw says, and the paid customer base has tripled from last year. The app is now used in more than three-quarters of American schools, including big districts like Dallas and Los Angeles.

[...] But Seesaw's experience also shows the kinds of hurdles that a company must jump in such extreme circumstances, going through years' worth of growing pains in a few months. Other digital education products, like Zoom and Google Classroom, experienced similar growth spurts and ran into their own problems -- such as unwelcome strangers who dropped into those early weeks of Zoom school. But they are public companies with resources to spare. Seesaw had just 60 employees in February, when the coronavirus hit the United States, and was trying to prove that it deserved a tryout for the big leagues. Small issues that the company knew about but hadn't addressed before the pandemic became significant problems. Teachers begged for app reliability, but some changes Seesaw made for at-home use didn't always work smoothly. While Seesaw executives wanted the app to be interesting for students, it had to be streamlined enough for frazzled parents suddenly running at-home school.

A coalition of technology companies used a federal court order unsealed Monday to begin dismantling one of the world's most dangerous botnets in an effort to preempt disruptive cyber-attacks before next month's U.S. presidential election. From a report: The takedown is a highly coordinated event, spearheaded by the software giant Microsoft and involving telecommunications providers in multiple countries. If the operation succeeds, it will disable a global network of infected computers created by a popular malicious software known as Trickbot. Beginning early Monday, Trickbot operators are expected to began losing communication with the millions of computers they had painstakingly infected over a period of months, even years. The loss of the botnet -- as a network of infected computers is known -- will make it more difficult for Russian-based cybercriminals and other digital marauders to do their work. It will likely take months or years for the criminals to recover, if at all.

By dramatically dismantling Trickbot's network, Microsoft and its partners believe they will likely head-off ransomware attacks that could compromise voting systems before the U.S. presidential election on Nov. 3, said Tom Burt, vice president of Microsoft's customer security and trust division. "They could tie-up voter registration roles, election night reporting results and generally be extremely disruptive," Burt said. "Taking out one of the most notorious malware groups, we hope, will reduce the risk of ransomware's impact on the election this year." Coordinated takedowns like the one Monday have become increasingly common in the last several years, although the legal and technical hurdles involved are substantial. In this case, Microsoft and its partners were able to obtain a federal court order founded on Trickbot's infringement of Microsoft's trademarks, but ultimately aimed at disconnecting communications channels the attackers use to control the malicious software.

The Xen Project has ported its hypervisor to the 64-bit Raspberry Pi 4. The Register reports: The idea to do an official port bubbled up from the Xen community and then reached the desk of George Dunlap, chairman of the Xen Project's Advisory Board. Dunlap mentioned the idea to an acquaintance who works at the Raspberry Pi Foundation, and was told that around 40 percent of Pis are sold to business users rather than hobbyists. With more than 30 million Arm-based Pis sold as of December 2019, and sales running at a brisk 600,000-plus a month in April 2020, according to Pi guy Eben Upton, Dunlap saw an opportunity to continue Xen's drive towards embedded and industrial applications.

Stefano Stabellini, who by day works at FPGA outfit Xilinx, and past Apache Foundation director Roman Shaposhnik took on the task of the port. The pair clocked that the RPi 4's system-on-chip used a regular GIC-400 interrupt controller, which Xen supports out of the box, and thought this was a sign this would, overall, be an easy enough job. That, the duo admitted, was dangerous optimism. Forget the IRQs, there was a whole world of physical and virtual memory addresses to navigate. The pair were "utterly oblivious that we were about to embark on an adventure deep in the belly of the Xen memory allocator and Linux address translation layers," we're told. [The article goes on to explain the hurdles that were ahead of them.]

"Once Linux 5.9 is out, we will have Xen working on RPi4 out of the box," the pair said. [...] Stefano Stabellini told The Register that an official Xen-on-RPi port will make a difference in the Internet-of-Things community, because other Arm development boards are more costly than the Pi, and programmers will gravitate towards a cheaper alternative for prototyping. He also outlined scenarios, such as a single edge device running both a real-time operating system alongside another OS, each dedicated to different tasks but inhabiting the same hardware and enjoying the splendid isolation of a virtual machine rather than sharing an OS as containers. George Dunlap also thinks that an official Xen-on-RPi port could also be of use to home lab builders, or perhaps just give developers a more suitable environment for their side projects than a virtual machine or container on their main machines. Stay tuned to Project EVE's Github page for more details about how to build your own Xen-for-RPi. Hacks to get it up and running should also appear on the Xen project blog.

sciencehabit writes: Every year, mining and industrial activity generates billions of tons of slurries, gravel, and other wastes that have a high pH. These alkaline wastes, which sit either behind fragile dams or heaped in massive piles, present a threat to people and ecosystems. But alkaline wastes could also help the world avert climate disaster. Reacting these wastes with carbon dioxide (CO2) from the air converts gaseous carbon into minerals and neutralizes the wastes' alkalinity. Carrying this out on a global scale could trap between 310 million to 4 billion tons of CO2 annually, according to recent surveys. That could provide the world with a much needed means of lowering atmospheric CO2. But there are major hurdles. Governments will need to offer incentives for mineralization on the massive scale needed to make a dent in atmospheric carbon. And engineers will need to figure out how to harness the wastes while preventing the release of heavy metals and radioactivity locked in the material.

The United Arab Emirates has successfully launched a spacecraft towards an orbit around Mars, reports the New York Times. Built by a space physics lab at the University of Colorado, the Hope Mars probe was tested in Dubai, before being shipped to Japan's Tanegashima Island, where it was launched by Mitsubishi Heavy Industries. The launch is being streamed on the web and on YouTube. It will join a fleet of six other spacecrafts studying the red planet from space, three operated by NASA, two by the European Space Agency (one shared with Russia) and one by India. Each contains different instruments to help further research of the Martian atmosphere and surface.

The Hope orbiter is carrying three instruments: an infrared spectrometer, an ultraviolet spectrometer and a camera. From its high orbit — varying from 12,400 miles to 27,000 miles above the surface — the spacecraft will give planetary scientists their first global view of Martian weather at all times of day. Over its two-year mission, it will investigate how dust storms and other weather phenomena near the Martian surface have either speed or slow the loss of the planet's atmosphere into space.
"You'll be hearing a lot about Mars this summer," the Times adds. "Three missions are launching toward the red planet, taking advantage of the way Earth and its neighbor get closer every 26 months or so, allowing a relatively short trip between the two worlds." The next expected launch will be China's Tianwen-1, which could occur between later this week through early August... On July 30, NASA is scheduled to launch Perseverance, a robotic rover that will be the fifth wheeled American vehicle to explore Mars... A fourth mission, the joint Russian-European Rosalind Franklin rover, was to launch this summer, too. But technical hurdles, aggravated by the coronavirus pandemic, could not be overcome in time to meet the launch window. It is now scheduled to launch in 2022.
If the other three spacecraft all launch successfully, they should arrive at Mars early next year.

Researchers have found that soap bubbles can carry pollen grains and deposit them on flowers. CNET reports: "It sounds somewhat like fantasy, but the functional soap bubble allows effective pollination and assures that the quality of fruits is the same as with conventional hand pollination," said Eijiro Miyako, associate professor at the Japan Advanced Institute of Science and Technology and lead author of a study published in the journal iScience on Wednesday.

The researchers first worked out that soap bubbles could indeed carry pollen. They then tested out different bubble formulations and settled on lauramidopropyl betain, a compound sometimes used in shampoos, as a good vehicle. Now comes the fun part. The researchers used a bubble gun on a pear orchard, "producing fruit that demonstrated the pollination's success," iScience publisher Cell Press said in a release. They also tested out the use of a drone to direct bubbles at flowers, which proved to be an accurate way to deliver the bubbles. The early experiments are promising, but there are still some hurdles around figuring out the most precise way to aim the bubbles and how to deal with potential weather issues like rain or wind.

Nintendo is telling partner developers it's not going to hold one of its Nintendo Direct video events in June. From a report: The publisher has had a June Direct to correspond with E3 (Electronic Entertainment Expo) every year since 2013. And before that, it held annual stage presentations. But complications brought about from Japan's work-from-home order as part of its attempts to mitigate COVID-19 are forcing Nintendo to push back its schedule. Nintendo was putting together a June event. The company was lining up partners and was planning to unveil its first-party schedule for the rest of 2020. That included highlighting the Mario franchise's 35th anniversary, which it's going to celebrate with the release of some classic 3D Mario games on Switch, according to various reports. But now, the company is far less certain. If it holds another Direct, it may not come until the very end of summer.

An anonymous reader quotes a report from The Verge: Lambda School, the controversial coding bootcamp, is threatening a former employee for speaking out about problems at the school. In an article published on February 11th, Sabrina Baez, Lambda's former head of career services, told The Verge that she was called a "feisty Latina" and a "bulldog" when she pushed for a diversity initiative at the school. Baez had signed a severance agreement when she left Lambda after the incidents; the school sent her a letter claiming she violated that agreement by speaking to reporters and is demanding the return of her severance money (roughly $36,000). The Verge has seen that letter, which also says Lambda is prepared to file a lawsuit to collect.

Baez claims that Lambda tried to fire her in 2018 for not living up to a performance plan. When she told her manager she hadn't received any documentation about this plan, she claims he walked back his comments and said she could stay. Baez says she decided to leave anyway because she no longer felt supported in her role. She was five months pregnant at the time and signed a nondisclosure agreement to get severance. Because of this agreement, The Verge agreed not to use Baez's name in the article. She has decided to come forward publicly in this piece since the school is threatening legal action. [...] The Verge's reporting went beyond Baez's experience, detailing ongoing issues Lambda faces with unhappy students and regulatory hurdles. In January, students from the school's User Experience Design program wrote a letter to the school calling the program "a very bad experience" and "not worth the money." They asked to get out of their income sharing agreements (ISAs), which are the bedrock of Lambda's program. The school is also operating without state approval in California, meaning the Bureau for Private Postsecondary Education cannot step in to help students if there is a dispute with the school. In the case of the User Experience program, the agency didn't have to: Lambda let the students out of their ISAs.

While civic leaders believe AI could help reinvent government services, they are also aware of citizens' profound privacy concerns. To navigate this challenge, the Finnish city of Espoo is conducting experiments that mix consultations, transparency, and limited use cases to demonstrate the potential of civic AI. From a report: Espoo has already conducted AI trials that initially required overcoming technical hurdles but ultimately improved city services. Over the long-term, the city is crafting a model that places ethics at the center of its AI plans by ensuring citizens can understand how these systems work and participate in debates about their implementation. Though the plan is still very much in its early stages, the city hopes to blaze a trail that other governments can follow. "I think Finns trust the government and the public sector more than [citizens] in any country in Europe," said Tomas Lehtinen, data analyst consultant for Espoo. "We wanted to keep that trust in the future. And so we wanted to be transparent about this project for citizens, but also because many of our employees also don't understand AI."

Helsinki, Los Angeles, Shanghai, Singapore, and other metros have been experimenting with on-demand buses -- and not seeing a lot of success. From a report: Since September, commuters using Shanghai's Number 9 bus route have had a new way of catching a ride. Rather than stand at a designated stop, they open a smartphone app and book a ride to wherever they're going. The service, provided by Alibaba, takes those reservations into account and calculates where the bus should go, using the company's artificial intelligence to customize the route. The idea is to boost ridership -- and curb traffic --by making public transit more convenient. Shanghai is just the latest city to give this sort of scheme a try. From Helsinki, Finland, to Sydney, cities around the world have spent the past few years trying to implement AI-fueled, on-demand bus services. Few have succeeded. Earlier this year, Singapore decided against renewing a pilot for on-demand buses. In Germany, microtransit company CleverShuttle -- which bills itself as more of a ride-pooling service than a bus -- pulled out of three of the eight cities it was operating in, citing economic and bureaucratic hurdles.

In a pilot project with shared rides company Via, bringing underserved residents to public transit nodes, Los Angeles Metro is spending $14.50 per trip -- twice what it spends on a regular bus trip. On-demand buses have been a thing for decades. Public transit agencies often call them demand-responsive buses, and deploy them to serve users who lack easy access to standard routes because they live especially far away, or may have special needs. Because they reach relatively few people, they're expensive to operate. They're inefficient too, often making riders wait undetermined amounts of time for a ride. So cities must strike a balance between making public transit accessible to the largest number of residents, and meeting their budget goals.