Earlier this year, the social media website Facebook announced that it would work with several news organizations — including The New York Times, The Guardian, and the BBC — to place news stories directly into users' personal Facebook webpage.  Stories published using Facebook Instant will load more quickly and keep the style of the original publisher, who will keep all the advertising income the stories earn — at least for now. The deal shows how important social media has become to news organizations, and is a clear sign of how the world of news is changing — and has been for a while.

    When Google News began in 2002, many saw it as the death of the newspaper. It had no human editor. Instead Google used, and still uses, a secret computer program that selects and displays news stories according to the reader's personal interests. More recently, Associated Press and Yahoo! have been publishing computer-written articles. Both use special software to automatically produce stories about company financial results and sports reports — areas where the quality of writing is felt to be of secondary importance to the accuracy of the data.

    Should we be worried about such developments? I think we should. One concern is that facebook, Google and other social media websites see journalism as a sideline, a way of putting people in front of advertisements. It isn't their primary function — so if it stops making them lots of money, they're likely to stop doing it.

    There's also a concern that computer-written articles are not actually journalism at all, because what a human news team produces is actually quite complex. A well-written news story puts information in context, offers a voice to each side of an argument and brings the public new knowledge.

    Though economics and speed of delivery mean readers will probably choose a computer-written story over a carefully shaped article — at least for daily news — I don't think the computers will be writing any in-depth articles for a while yet.

    Herbal medicine (草药), which has been used for medicinal purposes, is the use of plants to treat diseases. Many herbalists use the entire plant, from the flowers, stems, leaves, and roots, in the form of everything from teas to pills. These plants contain natural, chemical things that can treat the body for a variety of diseases- such as allergies, asthma, rheumatoid arthritis, migraine, chronic fatigue, and cancer, among others.

    Nowadays an increasing number of people prefer to adopt these plants to treat their diseases because, compared with chemical medicine, herbal medicine has its own advantages. Herbal medicine and remedies (治疗) are more effective than chemical medicine for certain diseases. The chemical medicine given by a chemist could have certain negative side effects. However, many of the herbal medicine and remedies do not have negative side effects. If any, they are softer than chemical medicine. Obesity is the cause of many of the health problems. Herbal medicine can help weight-loss more effectively and improve overall health.

    However, the cure using herbal medicine and supplements (营养品) would take some time, and therefore people are supposed to possess enough patience. Worse still, herbal medicine contains a variety of ingredients (成分) and people have to be sure that their body agrees with the ingredients and that it is not allergic (过敏).

    A point worth mentioning here is herbal remedies and medicine for certain illnesses may have negative side effects. These side effects may not be shown at once, but would take months or even years. In the early stages, if the herbal medicine is not agreeing with you, it is wise to stop using it.

    When used correctly and directed by doctors, herbs can help treat a variety of diseases. But keep in mind that the herbal medicine industry is not regulated, so herbal products are often misleading and may contain additives (添加剂) and that are not listed on the label (标签). Some herbs may cause allergic reactions or interact with other drugs, and some are poisonous if used improperly or at high doses (剂量). Taking herbs on your own increases your risk.

    Scientists from the University of East Anglia have identified four new man-made gases that are contributing to the damage to the ozone(臭氧) layer. Two of the gases are accumulating at a rate that is causing concern among researchers.

    Worries over the growing ozone hole have seen the production of chlorofluorocarbon (CFC) gases restricted since the mid 1980s. But the precise origin of these new, similar substances remains a mystery.

    Lying in the atmosphere, the ozone layer plays a critical role in blocking harmful UV rays, which cause cancers in humans and reproductive problems in animals.

    Scientists from the British Antarctic Survey were the first to discover a huge “hole” in the ozone over Antarctica in 1985. The evidence quickly pointed to CFC gases, which were invented in the 1920s, and were widely used in refrigeration. Extraordinarily, global action was rapidly agreed to deal with CFCs and the Montreal Protocol to limit these substances came into being in 1987. A total global ban on production came into force in 2010.

    Now, the newly discovered four new gases can destroy ozone and are getting into the atmosphere from as yet unidentified sources. Three of the gases are CFCs and one is a hydrochlorofluorocarbon (HCFC), which can also damage ozone.

    The research has shown that four gases were not around in the atmosphere at all until the 1960s, which suggests they are man-made. The scientists discovered the gases by analyzing polar snow pack. Air from this snow is a natural archive of what was in the atmosphere up to 100 years ago. There searchers also looked at modern air samples, collected at remote Cape Grim in Tasmania.

    They estimate that about 74,000 tonnes of these gases have been released into the atmosphere. Two of the gases are accumulating at significant rates. However, they don't know where the new gases are being released from and this should be investigated. Possible sources include chemicals for insecticide (杀虫剂)production and solvents (溶液) for cleaning electronic components. The three CFCs are being destroyed very slowly in :the atmosphere—so even if emissions (散发)were to stop immediately, they will still be around for many decades to come.

    Of the four species identified, CFC-113a seems the most worrying as there is a very small but growing emission source somewhere, maybe from agricultural insecticides. We should find it and take it out of production.

    A few years ago, Darla Hoff painted a pumpkin face onto a round straw bale(捆)at A1 and Karen Goldman's farm in Idaho Palls to advertise her U-pick pumpkin field. While Darla has stopped growing pumpkins, the annual tradition of straw bale art lives on at the farm and has drawn friends and neighbors to participate in it. Past creations have included an owl, Minions, tractors and a teddy bear.

    To make the tractors, A1 baled round straw bales in two different sizes smaller ones for the tractor's front tires and larger ones for the rear(尾部). Large square bales made up the bodies. Jerry Kienlen used his farming equipment to arrange the bales in the shape of two tractors. Then it was time to bring the tractors to life. Karen and her daughter. Lana Hedrick, secured some green paint, and A1 got some red paint. Darla's husband, James, sprayed the creation with a paint gun. For the finishing touches, Steven donated two shiny exhaust stacks (排气管),and A1 and Karen donated two steering wheels from their farm parts.

    The farm's annual straw bale art projects have now become a way for everyone to celebrate the end of another growing season. It's just something fun to do together after harvest. This neighborhood has always been close. Generations of these families have grown crops in this soil. Raised on the farms where they live now, they grew up together as their elders did before. A1 and Karen are truly super neighbors. Every year they also grow about two acres of corn to give away. Anyone can pick some, or A1 and Karen will even deliver. And during long Idaho winters, everyone gathers at the farm to enjoy fresh coffee and cookies.

    This year's straw hale creation theme is Straw Wars. And all eyes will be on A1 and Karen's farm as their creation takes shape.

    Everyone knows about New York City's most popular attractions, but here are some activities you might not think about doing on your NYC( New York City) vacation. Surprise yourself with some great things to do in New York City.

    Looking for something thrilling to do while you visit New York City? For over ten years, Trapeze school New York has been teaching people how to fly on the trapeze. Their beginner classes last two hours and cost $50-70, plus one-time $22 registration fee. From April to October, their outdoor location on the Hudson River offers a spectacular setting for the experience, but they also have an indoor location that is open year-round.

    Learn to Surf

    Rockaway Beach is a popular destination for East Coast surfers, but even if you've never surfed, there are plenty of folks happy to teach you at Rockaway Beach. Locals Surf School offers two-hour group lessons starting at $80, including all the vehicles you need. Frank from Rockaway Beach also offers surfing lessons.

    Get Kissed by a Sea Lion

    Sign up for a Sea Lion Encounter at the New York Aquarium, and you'll have the chance to get to get up close and personal with the Sea Lions after the show. After a short orientation, participants will each get a chance to pose for a photo and get a kiss from a sea lion. Sea Lion Encounters cost $20 and are offered after Sea Lion Celebration shows. Participants must be at least 5 years old, and those who're 5-7 years old must be held by their parents/caregivers during any animal interaction (互动).

    Experience Fall Leaves

    Although New York City doesn't have as many colorful leaves as New England, there are still some great ways to enjoy the changing leaves during a fall visit to New York City, both in the city and beyond. Whether you want to walk around one of New York City's great parks or take a fall leaves sightseeing cruise up the Hudson River, you can get a taste of the beautiful fall colors when you visit New York City.

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    PARIS—A scaffolding(脚手架) firm that has worked on the roof of Notre Dame said some of its workers had smoked on the site, but ruled out that a cigarette butt(烟蒂) might have started the fire that destroyed the cathedral's oak－framed roof last week.

    A spokesman for family－owned Le Bras Freres, confirming a report in French weekly Le CanardEnchaine, told Reuters that some workers of its Europe Echafaudage scaffolding unit had informed police that they had "sometimes" smoked on the scaffolding, despite a smoking ban on the site.

    "We blame it. But the fire started inside the building...so for company Le Bras Frères this is not a hypothesis(假设), it was not a cigarette butt that set Notre Dame de Paris on fire, " Le Bras Frères spokesman Marc Eskenazi said. TheCanardEnchaine reported that police had found the remains of seven cigarette butts in the burnt－out cathedral."This is not wrong, " said a source close to the investigation, who declined all other comment. Eskenazi said it was impossible to set a log on fire with a cigarette butt and questioned how cigarette butts could have been found on the site."If cigarette butts have survived the fire, I do not know what material they were made of." he said.

    Europe Echaffaudage also ruled out the possibility that the fire might have been started by an electricity incident at one of the two lifts on the site."The lifts' electricity was perfectly within specifications and well maintained, " he said. He added that the two lifts were on the outside of the building, situated at 45 and 65 metres from the base of the spire(尖顶), where the first smoke and flames had been spotted and that the workers had cut the power to the lifts at 17:50 when they had left the site for the day.

    TheCanardEnchaine also reported that electrical wiring ran through the roof of the cathedral, but the church administration denied that safety norms had not been respected."Nothing was ever done without the approval of the state...There were no wires dangling, everything was properly installed," Notre Dame spokesman Andre Finot said.In 2012, electrical engines had been installed to sound the bells in the spire.