We produce 500 billion of plastic bags in a year worldwide and they are thrown away polluting oceans, killing wildlife and getting dumped in landfills where they take up to 1,000 years to decompose. Researchers have been unsuccessfully looking for a solution.

    The 16-year-old Canadian high school student, Daniel Burd, from Waterloo Collegiate Institute, has discovered a way to make plastic bags degrade(降解) in as few as 3 months, a finding that won him first prize at the Canada Wide Science Fair, a ＄10,000 prize, a ＄20,000 scholarship, and a chance to revolutionize a major environmental issue.

    Burd's strategy was simple: Since plastic does eventually degrade, it must be eaten by microorganisms(微生物)．If those microorganisms could be identified, we could put them to work eating the plastic much faster than under normal conditions.

    With this goal in mind, he grounded plastic bags into a powder and concocted(调制) a solution of household chemicals, yeast(酵母) and tap water to encourage microbes growth．Then he added the plastic powder and let the microbes work their magic for 3 months．Finally, he tested the resulting bacterial culture on plastic bags, exposing one plastic sample to dead bacteria as a control．Sure enough, the plastic exposed(暴露) to the live bacteria was 17% lighter than the control after six weeks.

    The inputs are cheap, maintaining the required temperature takes little energy because microbes produce heat as they work, and the only outputs are water and tiny levels of carbon dioxide.

    “Almost every week I have to do chores and when I open the closet door, I have piles of plastic bags falling on top of me．One day, I got tired of it and I wanted to know what other people are doing with these plastic bags．The answer: not much．So I decided to do something myself.” Said Daniel Burd.

    As soon as the Thanksgiving holiday is over, Santa Clauses start appearing everywhere. It takes more than red clothing and a white beard to be a professional Santa In fact many successful Santas attend special classes.

    The CW Howard Santa School, one of the oldest Santa Claus school in the world, is in Midland, Michigan. It celebrated its 80th anniversary last year. Over 250 Santas gathered at the school to prepare for their seasonal work. Charlie Howard was the Santa Claus in the Macy*s Thanksgiving Day Parade for 17 years. He started the school in 1937.

    “At that time, there was a great need for good Santas. Santas didn't portray the character that we want. Santa Claus stands for all good things hut some of the gentlemen's images (形象) weren't up to the expectation,” said Charlie.

    The three-day Santa workshop teaches people “Santa sign language”, facts about deer and clothing and make-up style. The future Santas also become familiar with the newest wish list toys, gain (获得) interview experience for radio and television and even get advice on how to do their business taxes.

    It's said that about 15,000 students have graduated from the Santa school. They come from all over North America, Europe，Africa and Australia to study. Last year the school welcomed Santas from all 50 states as well as many other countries.

    The Santas never claim (声称) to be the one and only “real” Santa. Instead, they describe themselves as “the spirit of Christmas”. At the school's opening-night activity, they tell visiting children they are the “cousins of Santa”.

    Robert Davis says they also never promise children anything. Instead, they say they will try their best.

    After all, as Charlie Howard liked to say, “He is wrong who thinks Santa enters through the chimney (烟囱). Santa enters through the heart.''

    Singapore's public transport system is one of the best in the world, so you should have no problem finding your way around like a local. There are three main forms of public transport that you would find in any other major city－trains, buses and taxis.

TRAINS

    Trains run from 6:00 am to midnight. Single trip tickets start at 80 cents. If you buy an EZ-Link card for $15, you can ride the trains and buses as you like.

If you need more information, just call Transit Link on 1800 767 4333.

BUSES

    There are several bus services in Singapore and fares start at 80 cents. Be sure always ask the driver the cost of your ticket as he cannot give change.

If you need help, just call Transit Link on 1800 767 4333.

TAXIS

    There are three main taxi companies－City Cab (6552 2222), Comfort (6552 1111) and Tibs (6552 8888). Booking can also be easy by calling the numbers listed above.

RENTAL CARS

    Driving in Singapore is a pleasure and if you like to travel at your own pace, renting a car is a good choice. Renting takes away the hassle of getting to places around Singapore. Just sit back and enjoy the city. It also means you'll get to see a lot more that a trains or a bus won't let you see.

    For car rental, call Avis on +65 6737 1668.

    When he was a kid, Alex Vardakostas began working in the grill (烧烤店)alongside adult employees. He estimates he has cooked 50,000 burgers (汉堡包).

    Now, Vardakostas co-owns a burger joint called Creator, in San Francisco, California. But he doesn't stand over a grill flipping burgers, and neither do his employees. At Creator, burgers are cooked and assembled entirely by machine. And because it costs less to maintain the machine than to pay a kitchen's worth of employees, burgers cost less.

    Creator is just one example of a growing phenomenon: Automation is taking over more and more jobs. That means work is done by machines or computers instead of people.

    According to a report from McKinsey Global Institute, about 800 million people could be forced out of their jobs by 2030. McKinsey predicts that as technology improves, some tasks will be done more quickly or cheaply by machine, so businesses will install robots or computer Programs to perform them.

    Some jobs are more likely to be automated than others. Machines can do jobs that have three characteristics: They are routine, repetitive, and predictable. Some of these jobs pay low wages and require little education. But others pay well and demand an advanced college degree. Taxi drivers, cashiers, lawyers, and doctors all perform some tasks that can be done by machines.

    So what jobs are safe from automation? Answers include coming up with new ideas or work that involves interacting with other people and building relationships. Jobs in engineering, science, the arts, therapy, and nursing are examples.

    At Creator, Vardakostas hired people to do just that kind of work. Instead of repetitive burger prepping, workers interact with customers and advise them on flavor pairings, like mushroom sauce with pickles and onion jam. "In our world at Creator, all the work is creative and social," Vardakostas says. "And I think that is what we're going to see more of the future."

My Favourite Books

    Jo Usmar is a writer for Cosmopolitan and co­author of the This Book Will series(系列)of lifestyle books. Here she picks her top reads.

Matilda

Roald Dahl

    I once wrote a paper on the influence of fairy tales on Roald Dahl's writing and it gave me a new appreciation for his strange and delightful words. Matilda's battles with her cruel me parents and the bossy headmistress, Miss Trunchbull, are equally fumy and frightening, but they're also aspirational.

After Dark

Haruki Murakami

    It's about two sisters­Eri, a model who either won't or can't stop sleeping, and Mari, a young student. In trying to connect to her sister. Mari starts changing her life and discovers a world of diverse "night people" who are hiding secrets.

Gone Girl

Gillian Fynn

    There was a bit of me that didn't want to love this when everyone else on the planet did but the horror story is brilliant. There's tension and anxiety from the beginning as Nick and Amy battle for your trust. It's a real whodunit and the frustration when you realize what's going on is horribly enjoyable

The Stand

Stephen King

    This is an excellent fantasy novel from one of the best storytellers around. After a serious flu outbreak wipes out 99.4% of the world's population, a battle unfolds between good and evil among those let. Randall Flagg is one of the scariest characters ever.

    Traditional Chinese medicine (TCM) is gaining global popularity. According to a government white paper, TCM has been introduced in 183 countries and regions around the world.

    Westerners' understanding of TCM, however, may be limited to acupundure，cupping and massage (针灸，拔罐和按摩). For instance, the purple, injury-like marks left on US.swimmer Michael Phelps' back from cupping for the purpose of relaxing his muscles and reducing pain became the center of attention during the Rio Olympics in 2016.

    As a matter of fact, Chinese herbs play a more important role in getting rid of diseases and keeping the body in good condition in the TCM treatment system than physical treatment. It is therefore disheartening to know that-while 103 World Health Organization member countries have given approval to the practice of acupuncture，not many recognize Chinese herbal medicine TCM falls far behind Western medicine owing partly to the slow development of Chinese herbs.

    Herbs, are made into pills, powder and soup, and the kind of herbs uscd1 their quality and quantity, and the processing of the ingredients jointly determine the effectiveness of the prescription. Compared with Western medicine, which has standardized drug production processes and treatment methods, TCM lacks standardization, with the chemical composition and functions of its medicines being unclear and their effects being unstable. Fortunately, standardization has improved in recent decades, with an increasing number of factories producing patented TCM drugs.

    Another factor that has prevented the development of TCM prescription drugs is the lack of creativity, While Western medicine-making companies come up with new products every year, TCM drug producers tend to make medicines according to prescriptions handed down from the past. Chinese chemist Tu You your's winning the 2015 Nobel Prize in Physiology or Medicine for her research into malaria(疟疾）treatment may drive creativity to some extent in China's TCM industry. However, the current state of affairs cannot be changed within a short time.