2 . A new study shows that U.S. teens see more television commercials (广告) for alcohol than for jeans, sneakers, or other teen products, the New York Times reported Dec. 18.

For the study, the Center on Alcohol Marketing and Youth (CAMY) at Georgetown University studied the 208,909 alcohol commercials on television. They found that nearly 25 percent of the ads were viewed mainly by teenagers, rather than adults.

Furthermore, 12-to-20-year-olds viewed more commercials for beer and other alcoholic drinks than products marketed directly to young people, such as gum, snacks, and juice. “No one is watching what the industry is doing, and the industry is in denial (拒绝承认),” said David A. Kessler, dean of the School of Medicine at Yale and an adviser to CAMY.

The alcohol industry uses voluntary rules to reduce the number of ads seen by those under age 21. The rules say that ads should not air during programs where at least half of the audience is underage (未成年的).

“We do not forgive illegal underage drinking under any circumstances,” said Jeff Becker, president of the Beer Institute. “This industry does not, and never has, targeted our advertising to people who can’t legally buy our products.”

However, the report found that alcohol ads ran during 13 of the 15 most popular shows for teenagers, including “Seventh Heaven,” “Gilmore Girls, ” “Dark Angel,” “That ‘70s Show,” “Friends,” “E.R.,” and sporting events.

Jim O’Hara, executive director of CAMY, said the industry rules are false. He added, “These standards do not protect youth from exposure and overexposure to alcohol advertising and marketing.”

3 . A team of leading environmental experts have warned that the current war on plastic is detracting from the bigger threats to the environment. In an article, they say that while plastic waste is an issue, its prominence in the general public’s concern for the environment is overshadowing greater threats, for example, climate change and biodiversity loss.

The team argue that much of the bad talk about plastic waste is based on data that is not always representative of the environments that have been sampled. The dislike of plastic associated with this could encourage the use of alternative materials with potentially harmful effects.

The authors warn that plastic pollution dominates the public’s concern for the environment and has been exploited politically, after capturing the attention of the world, for example, through the images of wildlife caught in plastic was alarmist headlines. They say small political gestures such as law banning cosmetic microplastics, taxing plastic bags, and financial rewards for using reusable containers, as well as the promotion of products as “green” for containing less plastic than alternatives, make people neglect other environmental problems that are not as noticeable as plastic pollution.

The article also highlights that plastic is not the only type of polluting materials, originating from human activity that pollutes the environment. Other examples include natural textile fibres such as cotton and wool, and brake-wear particles from vehicles — all of which are present in different places. The authors note that these materials are often much more abundant than microplastics and some are associated with “plastic alternatives” that are marketed as solutions to plastic pollution. The impacts of these materials are less well-known than plastic and microplastic pollution, yet they could have huge impacts.

The article states that solutions are likely to come from a greater focus on designing materials and products that can be recycled, that have their end-of-life, and that markets and facilities exist to recycle.

4 . Saodat Sadikova is an English teacher in Jizzakh, Uzbekistan. As a young girl, she dreamed of becoming a flight attendant (空乘人员) and traveling the world, so she learned at least three languages. Although she was not able to become a flight attendant, Sadikova could speak Uzbek, Russian, English and Turkish. Sadikova has never traveled abroad but reports feeling connected to people around the world.

American Trina Bright worked in education for nearly 25 years and she traveled to many countries, including China and South Africa. Bright used stories from her travels to help her students in the U. S. understand their place in the world and see value in their own cultures. But Bright, unlike Sadikova, does not report feeling connected to people around the world.

Bright is not alone. Pew Research Center recently asked people in 24 countries a series of questions about how connected they feel to the world to see how travel experience relates to feelings of connectedness.

The study found that respondents (调查对象) who had traveled to at least one other country feel more connected to people around the world. 99 percent of respondents in the Netherlands reported having visited at least one other country and 77 percent of respondents from the Netherlands said they feel at least somewhat close to people all over the world. But international travel does not always mean a person feels a closeness to people around the world. 99 percent of Swedish respondents said they had visited at least one other country. Yet a much smaller number of Swedish respondents—47 percent—report feeling close to people all over the world.

Sadikova said she felt connected to the world because of media, which makes it quite easy to get to know events and news.

6 . In Sweden, many teachers have been putting emphasis (强调) on printed books, quiet reading time and handwriting practice, and devoting less time to tablets, independent online research and keyboarding skills.

The return to more traditional ways of learning is a response to experts questioning whether Sweden’s comprehensive (全面的) digitalised approach to education had led to a fall in basic skills.

Sweden’s minister for schools, Lotta Edholm, is one of the biggest critics (批评者) of the comprehensive acceptance of technology. “Sweden’s students need more textbooks,” he said, “Physical books are important for student learning.”

Although Sweden’s students score above the European average for reading ability, an international assessment of fourth-grade reading levels, the Progress in International Reading Literacy Study (PIRLS), showed a drop among Sweden’s children between 2016 and 2021. In 2021, Swedish fourth graders averaged 544 points, a drop from the 555 average in 2016.

This may suggest a growing number of immigrant (移民) students who don’t speak Swedish as their first language, but overuse of screens during school lessons may cause youngsters to fall behind in subjects, education experts say.

The rapid adoption (采用) of digital learning tools also has drawn concern from UNESCO. In a report published in August, UNESCO issued a call for proper use of technology in education. The report calls countries to speed up Internet connections at schools, but at the same time warns that technology in education should be used in a way that never takes the place of in-person, teacher-led instruction.

In the Swedish capital, Stockholm, Liveon Palmer, a third grader at Djurgardsskolan elementary school, agreed with the idea of spending more school hours offline. “I like writing more in school, like on paper, because it just feels better,” he said.

7 . California has been using recycled wastewater for many years. A team has used it to make ice surfaces for the game of hockey(冰球运动). It has been used to make snow for the sport of skiing. And farmers use it to water their crops. But it has not been used directly for drinking water.

Recently, California officials approved new rules to let water agencies recycle wastewater and put it right back into the pipes that carry drinking water to homes, schools, and businesses. It is a big step for California.

California’s new rules would let—but not require—water agencies to take wastewater, treat it, and then put it right back into the drinking water system. That means proving to people that recycled water is not only safe to drink but also not dirty. California would be just the second US state to permit this, following Colorado. It has taken officials more than 10 years to develop these rules, a process that included several studies by independent groups of scientists.

A project in San Diego is aiming to produce nearly half of the city’s water through recycling wastewater by 2035. And the Metropolitan Water District of Southern California aims to produce up to nearly 570 million liters(升)a day for its 19 million people. Adel Hagekhalil is with Metropolitan Water. He said the new rules will permit new projects that have not yet been considered.

California’s new rules require the wastewater be treated for all bacteria and viruses, even if they are not present in the wastewater. In fact, the treatment is so intense that it removes all of the minerals that make fresh drinking water taste good. That means the minerals need to be added back at the end of the process. Polhemus is a director of the drinking water group for the California Water Resources Control Board. “It’s at the same drinking water quality, and probably better in many instances,” he said, adding that it takes time and money to build these treatment centers. So, they will only be available for bigger cities at first.

8 . Traditionally, the number of meaningful social relationships one can maintain is around 150. This concept finds its roots in the natural development of the human brain. However, in the digital age, where our social connections extend far beyond the geographical boundaries (界限), we easily create more connections with the help of the rising online platforms. Then, a question arises: Does the digital age rewrite the rules of social connection?

A study published in Cyberpsychology, Behavior, and Social Networking explored the effect of social media usage on the size of social circles and the closeness of relationships. The researchers found that more time spent on social media made for a larger number of online “friends,” but not a larger number of offline friends. Further, the findings were not linked to feelings of closeness towards online or offline friends.

Another study from the European Journal of Information Systems studied the link between social media usage and “social overload” — the feeling that too much of the energy for socializing is being used up by online relationships. The authors found that social media usage directly contributed to the experience of social overload, related to digital tiredness and dissatisfaction with social media.

With social media platforms rising, one’s ability to connect with people challenges the traditional concept. The brain, used to manage a limited number of relationships, now fights against the difficulties of dealing with a large number of digital connections, leading to a less attention and feeling investment (投入) in a relationship. And the online shallow connections can not develop meaningful, lasting relationships that stand the test of digital distance.

Therefore, in the digital age’s social whirlwind, instead of drowning (淹没) in a sea of weak interaction (互动), choose to engage in meaningful conversations and focus on the handful of relationships that truly fit your heart. Hug the beauty of face-to-face connections, allowing the richness of human interaction to flower beyond the digital world. By doing so, we create digital and physical spaces that truly improve our well-being.

9 . The project, called Nemo’s Garden, is the brainchild of Sergio Gamberini, a chemical engineer who runs a scuba (水肺) diving business. In 2013, he was chatting with local farmers when he came up with the idea. Several days later, he dived to the bottom of Noli’s bay and placed a vase with seeds inside a plastic balloon. After 48 hours, the seeds were coming up and Gamberini decided to scale up the experiment.

Nemo’s Garden’s key innovation, a sub-water biosphere, is a unique type of underwater greenhouse. It can use the ocean’s positive environmental factors, temperature stability, evaporative water generation, CO₂ absorption, the abundance of oxygen, and inherent protection from pests, to create an environment ideal for crop cultivation. The plants are fed by a hydroponic (水耕法) system. Water is generated from salt-water evaporating and then condensing (冷凝), so no additional fresh water source is required. Additional power for lighting, pumps and sensors is provided by wind generators and solar panels situated on the surface. This makes the entire set-up completely eco-friendly and self-sustaining.

Inside the biosphere, it is even more impressive. Each dome has a shelf running the entire circumference on which plants, equipment and tools can be placed. There is oxygen, carbon dioxide and humidity sensors, radio communication, lights, a fresh-water hose and to top it all off, Wi-Fi. You can control everything in the dome via an app on your phone from the surface. You can turn the lights on, check the conditions and even watch a live video stream of the plants growing.

Gianni Fontanesi, Nemo’s Garden project manager, has logged nearly a thousand dives to perform underwater farming. He says that being inside the greenhouse is like being in an aquarium turned inside out: “You are the fish looking out into the outside world.”

10 . A new study from the Netherlands has found that an important factor in a child’s ultimate level of education, even more important than their own family’s economic situation, is whether they grow up with rich neighbors nearby.

Researcher Agata Troost and her colleagues at Delft University of Technology used a national database to track the address of every Dutch baby born in 1995, a total of 140,338 people, from birth to age 23. Using geolocating software, they drew up a socioeconomic profile (概况) for each child's immediate neighborhood, figuring the percentage of neighbors who were rich, middle class or disadvantaged.

After controlling a number of other factors, including parents’ earnings and levels of education, the researchers found that a child's own experience of wealth or poverty mattered less to their ultimate level of schooling than exposure to well-off neighbors. The data suggest that growing up in a rich area, with well-maintained parks, libraries and soccer fields, as well as interactions with educated neighbors, could boost a poor child's ability to see beyond their immediate horizons (眼界).

“Rich families create neighborhoods and activities that create opportunities,” said Ms. Troost, and these advantages are shared with other children who happen to live nearby. The finding echoes an earlier study by Mr. Chetty and his colleagues, which showed that having even one inspiring teacher in middle school can improve a student’s career prospects. Whether in the classroom or on the street, it seems that social interactions outside the family can start a young person's motivation and ambition.

At the same time, the study also stressed the importance of the home environment. When parents are well educated, children are likely to be, too. And that's the moral of the story: Neighborhoods can have different effects on different children, depending on how educated their parents are, whether they are male or female, and how much casual contact they have with people who are different from their own families. “Location, location, location” may be a old saying for buying a house, but we're learning that it also holds true for children's development.