Bad news sells. If it bleeds, it leads. No news is good news, and good news is no news. Those are the classic rules for the evening broadcasts and the morning papers. But now that information is being spread and monitored(监控) in different ways, researchers are discovering new rules. By tracking people's e-mails and online posts, scientists have found that good news can spread faster and farther than disasters and sob stories.

    “The 'if it bleeds' rule works for mass media,” says Jonah Berger, a scholar at the University of Pennsylvania. “They want your eyeballs and don't care how you're feeling. But when you share a story with your friends, you care a lot more how they react. You don't want them to think of you as a Debbie Downer.”

    Researchers analyzing word-of-mouth communication—e-mails, Web posts and reviews, face-to-face conversations—found that it tended to be more positive than negative(消极的), but that didn't necessarily mean people preferred positive news. Was positive news shared more often simply because people experienced more good things than bad things? To test for that possibility, Dr. Berger looked at how people spread a particular set of news stories: thousands of articles on The New York Times' website. He and a colleague analyzed the “most e-mailed” list for six months. One of his first findings was that articles in the science section were much more likely to make the list than non-science articles. He found that science amazed Times' readers and made them want to share this positive feeling with others.

    Readers also tended to share articles that were exciting or funny, or that inspired negative feelings like anger or anxiety, but not articles that left them merely sad. They needed to be aroused(激发) one way or the other, and they preferred good news to bad. The more positive an article, the more likely it was to be shared, as Dr. Berger explains in his new book, “Contagious: Why Things Catch On.”

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Biography

    When Salinger learned that a car park was to be built on the land , the middle-aged writer was shocked and quickly bought the neighboring area to protect it… The townspeople never forgot the rescue and came to help their most famous neighbor.

    J. D.  Salinger：A  Life by Kenneth Slawenski（Random House,$27）

Mystery（疑案小说）

     “You're a smart boy.  Benny's death was no accident, and you're the only who saw it happen. Do you think the murderer should get away with it ? ”The boy was starting stubbornly at his lap again.

    A thought suddenly occurred to Annika ,“Did you …You recognized the man in the car , didn't you?”

    The boy hesitated, twisting his fingers ,“Maybe ,”he said quietly.

    Red Wolf by Liza Marklund（Atria Books, $25. 99）

Short Stories

    She wants to say to him what she has learned , none of it in class. Some women are borm stupid,and some women are too smart for their own good. Some women are born to give ,and some women only know how to take.  Some women learn who they want to be from their mothers,some who they don't want to be.  Some mothers suffer so their daughters won't.  Some mothers love so their daughters won't.

    You Are Free by Danzy Senna （Riverhead Books,$15）

Humor

    Do your kids like to have fun? Come to Fun  Times! Do you like to watch your kids having fun? Bring them to Fun Times! Fun Times! 's “amusement cycling ”is the most fun you can have , legally , in the United States right now. Why spend thousands of dollars flying to Disney World when you can spend less than half to that within a day's drive lf most cities?

    Happy And Other Bad Thoughts by Larry Doyle（Ecco,$14. 99）

Protect Children from Cyber-bullying

    When you think about bullying, you might think of a child being bullied by another in the schoolyard. As more young people have access to computers and cell phones, traditional bullying has gone digital, which has not yet gained awareness in Chinese parents.

    Cyber-bullying, first invented by Canadian educator Bill Belsey, is the use of the Internet and related technologies to harm other people, in an intentional, repeated, and unfriendly manner. It involves threatening text messages, the spread of online rumors on social networking sites, and intentionally keeping someone out of an online group. Cyber-bullying is at an all-time high in the US. According to a study from the US Department of Justice, more than 43% of teenagers report being victims（受害者）of cyber-bullying.

    Compared to face-to-face bullying, cyber-bullying is considered to have a worse emotional effect on the victims, and kids could feel more desperate and depressed. Severe, long-term or frequent cyber-bullying can leave victims at greater risk for anxiety, depression, and other disorders. Research says that cyber-bullying victims were almost twice as likely to have attempted suicide compared to youths who had not experienced it.

In traditional schoolyard bullying, at least home is a safe place for the victims. But cyber-bullying is endless—it could happen anytime. Moreover, in the digital world, bullying is much easier, as a bully can pick on people with a much lower risk of being caught.

    Actually, cyber-bullying has become a worldwide issue. In the US, as several teens committed suicide because of cyber-bullying, some schools set rules to punish cyberbullies. Laws to punish cyber-bullying have been introduced in some states. In China, cyber-bullying is still considered by many parents and educators as a problem that involves physical contact. However, as cell phones and laptops are becoming common equipment for teenagers, social interactions have increasingly moved from personal contact to virtual contact. Cyber-bullying is spreading faster than expected.

    For schools and parents, safety rules should be set in the virtual world for kids, such as telling them not to let out anything to a stranger. Active steps should be taken to make the public aware of the seriousness of this problem, because it would be too late to take measures after tragedy strikes.

    Chocolate could soon be a thing of the past, after scientists warned that the cacao plant, from which chocolate is made, could be extinct within 32 years.

    Over half of the world's chocolate comes from just two countries in West Africa­Cote d'Ivoire and Ghana­where the temperature, rain, and humidity provide the perfect conditions for cacao to grow. But the threat of rising temperatures over the next three decades caused by climate change, is expected to result in a loss of water from the ground, which scientists say could upset this balance.

    According to the related data, a temperature rise of just 2.1℃ could spell an end for the chocolate industry worldwide by 2050. Farmers in the region are already considering moving cacao production areas thousands of feet uphill into mountainous area­much of which is currently preserved for wildlife. But a move of this scale could destroy ecosystems that are already under threat from illegal farming and deforestation.

    Part of the problem, according to Doug Hawkins, is that cacao farming methods have not changed for hundreds of years. "Unlike other tree crops that have benefited from the development of modern, high yielding strains and crop management techniques to realize their genetic potential, more than 90% of the global cocoa crop is produced by small farms with unimproved planting material," he said. "It means that we could be facing a chocolate decrease of 100,000 tons a year in the next few years."

    Now scientists at the University of California at Berkeley have teamed up with American candy company Mars to keep chocolate on the menu. Using the controversial(有争议的) gene-editing technology known as CRISPR they are trying to develop a type of the cacao plant capable of surviving in dryer, warmer climates. If the team's work on the cacao plant is successful, it could remove the need for farmers in West Africa to relocate to higher ground, and perhaps even allow cacao to be grown elsewhere in the world.

On a chilly autumn morning in the Italian countryside near Larderello, Tuscany, the misty landscape reminded me why the area is nicknamed the Devil's Valley. The land here is a web of natural cracks in the rock that let a mix of steam and gases reach the surface.

Unlike the rolling hills and cypress-lined roads of other parts of Tuscany, the landscape here is covered with dozens of grey cooling towers puffing white vapors. The deafening roar of a turbine (涡轮机) at the Valle Secolo geothermal (地热的) plant breaks the quietness, but its violent spinning transforms steam rising from underground into energy for 150,000 families in the region. About 30% of Tuscany's electricity comes from this energy source. After producing electricity, the leftover steam heats water for nearby districts.

This underground energy has recently proved a vital resource. Italy greatly depended on Russian fossil fuels and in 2023 Italians bore the world's highest household electricity bills. Factories cut down production and households had to turn down their heaters. But residents of the Larderello area spent the winter in warm homes, thanks to the local geothermal plants working 24/7.

Bruno Della Vedova, president of the Italian Geothermal Union, hopes that in the future other Italian regions could benefit from such a resource, which is extremely important when the whole world looks to transition to renewable energy.

While countries like Iceland and Kenya are taking advantage of their geothermal resources, the industry's growth has made slow progress in Italy. High set-up costs and difficulties in extraction present significant barriers. And new plants often run into opposition from nearby communities over health concerns.

Italy sits on a geothermal sweet spot. Especially below Larderello, as Della Vedova says. A vast reservoir (储备) of steam and water is trapped between Earth's inner heat and a layer of clay-heavy rocks. High temperatures lead to the formation of steam directly inside the reservoir, providing a significant source of energy.

But while heat from Earth's core is practically endless, the water it heats within the planet are not. So Della Vedova says restoring underground water supplies and using them sustainably is critical for the future. "We can't take advantage of a geothermal resource at will," he says.

Natural silence—the kind when you hear nothing but the sound of nature around you—is becoming increasingly scarce.The rumblings of man-made noise can be heard even in the remote corners of national parks and deep in the Arctic Ocean.

 This is having a troubling effect.In humans,noise pollution has been linked to cardiovascular diseases,mental health problems and cognitive impairment in children.In wildlife,it's disrupting navigation,mating rituals,communication and can cause hearing loss."We're losing the ability to listen to nature without noise pollution," says sound recordist Matt Mikkelsen.He's part of the non-profit organization Quiet Parks International,which aims to identify and preserve the planet's last quiet places.

 Recently,this took him to Boundary Waters Canoe Area Wilderness in northeastern Minnesota.No cars,motor boats,electricity or telephone lines are allowed in the 1-million-acre area,making it a strong candidate for Quiet Park status.But listening back to the recording,Mikkelsen can hear the low hum of a commercial jet flying far away.

 Quiet Parks hasn't yet decided if Boundary Waters meets its criteria—it's one of 260 potential sites around the world that the organization is currently exploring.The team will analyze the sound recordings from each location and consider them alongside other data.

 In recent years,the world has been getting louder,with cities and towns expanding and an increasing number of beeping cars,whooshing airplanes and cargo ships with blasting horns.But during the pandemic,there has been momentary respite.In 2020,global air travel was down by 60% and road transport decreased by almost half.Scientists in Europe found that noise caused by humans fell by up to 50% after lockdowns were imposed.

"People relished the silence," says Mikkelsen."There were no airplanes in the sky and cars weren't on the street...It was a miraculous thing to be able to hear the world,all of a sudden,free from noise pollution,"he says.Since the start of the pandemic,Quiet Parks says it has experienced a huge surge in interest for quiet places."I hope that we can take that desire for a world with less noise forward," says Mikkelsen,"and appreciate the spots we have,where we can go and not experience noise pollution."