1 . Why do farmers grow crops outside in fields when we can arrange them vertically (垂直地)? The idea of vertical farming was first proposed in 1999. It was seen as a way to save space, reduce air miles and transform old and abandoned buildings, like warehouses. In 2021, Fortune Business Insights valued the global vertical farming market at 3.47 billion dollars. Now, however, this industry is under threat, partly due to rising energy costs.

According to the magazine Science Focus, vertical farming gives ten times the yield (产量) of conventional outdoor farming. However, in order for crops to grow using this method, plants are placed in a controlled environment, grown not under the Sun, but under LED lights and watered with recycled water pumped on a closed-loop system (闭环系统).

Unfortunately, energy prices have risen across the globe. Therefore, this reliance on electricity has meant the last few years have not been easy for the industry. Cindy van Rijswick, from the Dutch research firm RaboResearch, has estimated that operational costs for a vertical farm are around 15% higher now compared to 18 months ago. Infarm, Europe’s largest vertical farming company, made around500 employees redundant (被裁员的) in November 2022 because they needed to downsize. They blamed higher operating costs due to energy increases as one reason for the layoffs.

Another issue related to the cost-of -living crisis and affecting vertical farming is the type of produce grown. This includes herbs such as basil, as well as salad leaves and leafy greens. Compared to traditionally farmed plants, like onions and carrots, these products tend to be more expensive, which could lead to reduced demand as consumers become more cautious about their spending.

So, it seems that a future with food grown under LED lights is looking less and less bright.

2 . Hawaii lawmakers are considering legislation (立法) that would require visitors to pay for a year-long license or pass to visit state parks. Josh Green is the state’s governor. He said, “We get between 9 and 10 million visitors a year, but we only have 1.4 million people living here.” He added, “Those 10 million travellers should be helping us sustain our environment.” Lawmakers still debating how much they would charge.

The governor campaigned in 2022 on the idea of having all tourists pay a $50 fee to enter the state. Legislators think this would violate US constitutional protections for free travel. They instead think visitors should pay to enter parks and trails. Either policy would be a first of its kind for any US state. Hawaii’s leaders are following the example of other popular tourist areas with similar fees or taxes. They include Venice, Italy, and Ecuador’s Galapagos Islands.

Hawaii State Representative Sean Quinlan is the leader of the House Tourism Committee. He said changes in the activities of travellers are part of Hawaii’s push. He said golf rounds per visitor per day have dropped 30 percent over the past 10 years while hiking has increased50 percent. People are also seeking out isolated places they have seen on social media. The state does not have the money to oversee and protect all these places, he said.

Most state parks and trails are currently free. Some of the most popular ones already charge, like Diamond Head State Monument. That trail leads hikers from the floor of a 300,000-year-old volcano up to the top. It gets 1 million visitors each year and costs $5for each traveller.

A bill currently before the legislature would require visitors over the age of 15to buy a yearly pass to visit forests, parks, trails or “other natural area on state land”. People who live in Hawaii would not need to pay.

4 . Would you take a trip if you couldn’t use your cellphone? A new tour company called Off the Grid is asking travellers to put their cellphones away and not even use them for photos. The company founder, Zach Beattie, is developing his business, using money he saved from a tech job at a mapping company. He’s hired guides for every trip but will help lead the first few himself.

The first trip is to Lisbon, Portugal, in July. It takes 7 to 10 days, with small groups of up to 16 people. Prices range from $1,500 to $1,650, including accommodations, meals and ground transportation. The plan includes at least three excursions (远足) and two social events, with an emphasis on unique experiences over bucket-list sightseeing. The tour also includes surfing lessons, yoga on the beach, a day of sailing and dinner with a local family.

“When you’re somewhere new, there’s a lot to see and a lot of cool and interesting people to meet,” Beattie said. “Your phone can distract (使分心) you.” The phone ban won’t be enforced quite as strictly as it seems at first glance. “We want it to be voluntary,” he said. “We’re not collecting phones and throwing them in a locked trunk. It’s held by you, but put in your pocket, and you state your intentions for the week, whether that’s checking your social media once or twice a day or a total blackout.”

Tour-goers also get a “dumbphone” without Internet access that’s loaded with numbers for group leaders and other participants, both for emergencies and to promote socializing. Participants may bring regular cameras, but Beattie is hiring a photographer for each tour so there will be plenty of photos to remember the trip. Once the trip is over, participants will have access to those photos for use in social media posts.

8 . Romantic attachment is one of the best predictors of happiness that social scientists have identified. For example, my review of the General Social Survey finds that although 27 percent of married Americans said they were “very happy” with their lives, only 11 percent of those respondents who were never married, divorced, separated, or widowed answered this way. And research in the Journal of Research in Personality has shown that marriage can protect happiness in adulthood.

These findings may help explain the well-documented decline in American happiness, especially among young adults. The percentage of adults who are currently married has fallen from almost 70 in 1960 to about 50 today. The solution to the happiness deficit (赤字) — for the nation as well as among individuals — is simply to encourage more people to pair off. However, a closer look at the singles trend suggests that the problem is not a lack of available partners, but that young adults may unintentionally be avoiding romantic attachment.

Psychologists commonly measure the health of attachment through two dimensions: anxiety and avoidance the latter meaning a resistance to intimacy (亲密). To score lower on each dimension is better. An insecure bond can involve someone being anxious but not avoidant, avoidant but not anxious, or both, while secure attachment is on the other hand. Unfortunately, insecure attachment is becoming more and more common. Over the past two decades, successive groups of studied college students have shown an increasing likelihood of experiencing one of the insecure styles. One particular insecure style-avoidance-is associated with a greater preference for singlehood. That tells us that the underlying problem is chiefly one of greater avoidance.

The popularity of avoidant attachment is a more reasonable explanation for the increase in unhappiness among young adults than their simply being uncoupled. After all, we also know that singlehood can make some people happier, and that a bad romantic partnership is clearly worse than no relationship at all. But in contrast to that mixed picture, many studies show that avoidant attachment is associated with lower satisfaction with life.

So what is causing this mass romantic avoidance? Two psychologists provided clues in a paper published in 2022 that was based on surveys of university students in Cyprus, including what led them to prefer being single. Strongly predictive of singledom, the researchers found, was not only a preoccupation with work and career but also the wide spread of so-called Dark Triad(narcissism, Machiavellianism, and psychopathy). In other words, people may avoid romantic commitment if they are especially self-centered or work-focused.