Our warming planet is expected to face serious water crisis（危机）in the coming decades — which means each nation's natural resource will be more important than ever.

    LIANG TAO sold 80 pink Givenchy bags in 12 minutes. Becky Fang sold 100 Mini Cooper cars in just five. Both are wanghong, literally “red-hot on the web”. Every day millions of Chinese search social media for wanghong posts or tune in to live-streams for wanghong's opinions on everything. The fans are helping this new Chinese Internet star to make money out of their popularity—and to shake up the country's e-commerce industry in the process.

    A few of wanghong have been hired by luxury brands. Jaeger-LeCoultre, a Swiss watchmaker, hired Papi Jiang for a video ad targeting young urbanites (都市人), including her 27m fans on Sina Weibo, a Twitter-like microblog. Zhang Yi of iiMedia Research, a consulting firm, estimates that up to 15% of sales on shopping sites like Taobao or social-media apps such as WeChat are influenced by wanghong's public support. The length of a dress might be decided by a survey of a wanghong's fans; its launch date might be based on the number of hits, shares or comments it collects, some of which can cause last-minute design changes.

    This poses a new challenge for retailers(零售商), whose supply chains must respond ever more quickly to wanghong's opinions. Whereas previously a company would look for a celebrity to match its image, wanghong and their admirers are shaping goods.

    Another challenge comes directly from wanghong themselves. They increasingly make money not merely from online support or advice but by launching their own e-commerce stores. Sales of goods accounted for just under half of wanghong earnings of 53bn yuan ($8bn) in 2016, estimates Analysys, a Chinese market-research firm (the rest came mostly from live-show tips and adverts).

    Some wanghong are going a step further. In November Becky Fang launched her own clothing line. Part of her motivation, she says, was that the brands she supported did not always match the trends she was sharing with her followers. By creating her own brand, Becky's Fantasy, she have full control of the quality. She also gains a new income. For the time being only 3-5% of wanghong follow Becky Fang's example, iiMedia Research estimates. But it expects the model to become an industry in its own right, including entertainment and e-commerce, and driven by online data.

    Where will you go to escape the stress of life and the noise of traffic? To find out, we turned to question-and-answer site Quora, where users have been sharing their opinions. From an Alpine palace in Germany to some amazing English views, these dreamy destinations are so magical that it's hard to believe they're real.

    Gaudi's otherworldly imagination

    Designed by one of Spain's most famous architects, Antoni Gauldi, the Roman Catholic church Sagrada Familia is a legend in itself Construction began in 1882, but less than a quarter of the project was complete when Gaudi died in 1926. Since then, work has progressed slowly. How about the ending? Architects plan to complete the project in 2026, the centenary of Gaudi's death.

    As Barcelona's most popular tourist site, Sagrada Familia attracts three million visitors every year for one good reason: It's a masterpiece unlike anything else in the world which is largely responsible for the city's lively personality.

    A setting that could steal the spotlight from any storybook hero

    With its valleys surrounded by lakes, rivers, hills and peaks, the Lake District in England's northwest is quite literally taken out of fairy tales. This place was Beatrix Potter's inspiration for Peter Rabbit and the residence（居所）of the Lake Poets, including William Wordsworth, Samuel Taylor Coleridge and Robert Southey.

    One of nature's most magical illusions

    Once upon a time in the faraway land of the Faroe Islands, Lake Leitisvatn became known as the most striking of all the islands' lakes. At more than 6km long, it is the biggest in the Faroe Islands. In reality, Lake Leitisvatn is actually no more than about 30m above sea level. A steep cliff in front of the lake and a clever camera angle make the lake appear to be much higher than it really is.

    Do you often feel tired? Is it really because of the large amount of mental work you do? Here is an astonishing and significant fact: Mental work alone can't make us tired. It sounds absurd. But a few years ago, scientists tried to find out how long the human brain could labor without reaching a stage of fatigue (疲劳). To the amazement of these scientists, they discovered that blood passing through the brain, when it is active, shows no fatigue at all! If we took a drop of blood from a day laborer, we would find it full of fatigue toxins(毒素) and fatigue products. But if we took blood from the brain of an Albert Einstein, it would show no fatigue toxins at the end of the day.

    So far as the brain is concerned, it can work as well and swiftly at the end of eight or even twelve hours of effort as at the beginning. The brain is totally tireless. So what makes us tired?

    Some scientists declare that most of our fatigue comes from our mental and emotional attitudes. One of England's most outstanding scientists, J.A. Hadfield, says, “The greater part of the fatigue from which we suffer is of mental origin. In fact, fatigue of purely physical origin is rare.” Dr. Brill, a famous American scientist, goes even further. He declares, “One hundred percent of the fatigue of a sitting worker in good health is due to emotional problems.”

    What kinds of emotions make sitting workers tired? Joy? Satisfaction? No! A feeling of being bored, anger, anxiety, tenseness, worry, a feeling of not being appreciated —— those are the emotions that tire sitting workers. Hard work by itself seldom causes fatigue. We get tired because our emotions produce nervousness in the body.

    It had been some time since Jack had seen the old man. College, career, and life itself got in the way. In fact, Jack moved clear across the country in pursuit of the dreams. There, in the rush of his busy life, Jack had little time to think about the past and often no time to spend with his wife and son. He was working on his future, and nothing could stop him.

    Over the phone, his mother told him, “Mr. Belser died last night. The funeral is Wednesday.” Memories flashed through his mind like an old newsreel as he sat quietly remembering his childhood days.

    “Jack, did you hear me?”

    “Oh, sorry, Mom. Yes, I heard you. It's been so long since I thought of him. I'm sorry, but I honestly thought he died years ago,” Jack said.

    “Well, he didn't forget you. Every time I saw him he'd ask how you were doing. He'd reminisce (回忆) about the many days you spent over 'his side of the fence' as he put it, ” Mom told him.

    “I loved that old house he lived in,” Jack said.

    “You know, Jack, after your father died, Mr. Belser stepped in to make sure you had a man's influence in your life,” she said.

    “He's the one who taught me carpentry. I wouldn't be in this business if it weren't for him. He spent a lot of time teaching me things he thought were important. Mom, I'll be there for the funeral.” Jack said.

    Busy as he was, he kept his word. Jack caught the next flight to his hometown. Mr. Belser's funeral was small and uneventful. He had no children of his own, and most of his relatives had passed away.

    The night before he had to return home, Jack and his Mom stopped by to see the old house next door one more time, which was exactly as he remembered. Every step held memories. Every picture, every piece of furniture … Jack stopped suddenly.

    “What's wrong, Jack?” his Mom asked.

    “The box is gone,” he said.

    “What box?” Mom asked.

    “There was a small gold box that he kept locked on top of his desk. I must have asked him a thousand times what was inside. All he'd ever tell me was 'the thing I value most',” Jack said.

   It was gone. Everything about the house was exactly how Jack remembered it, except for the box. He figured someone from the Belser family had taken it.

    “Now I'll never know what was so valuable to him,” Jack said sadly.

    Returning to his office the next day, he found a package on his desk. The return address caught his attention.

    “Mr. Harold Belser” it read.

    Jack tore open the package. There inside was the gold box and an envelope. Jack's hands shook as he read the note inside,

    “Upon my death, please forward this box and its contents to Jack Bernett. It's the thing I valued most in my life.” A small key was taped to the letter. His heart racing, and tears filling his eyes. Jack carefully unlocked the box. There inside he found a beautiful gold pocket watch. Running his fingers slowly over the fine cover, he opened it.

    Inside he found these words carved: “Jack. Thanks for your time! Harold Belser.”

    “Oh. My God! This is the thing he valued most …”

    Jack held the watch for a few minutes, then called his assistant and cleared his appointments for the next two days. “Why?” his assistant asked.

    “I need some time to spend with my son,” he said.

    High school was a hard time for Me in the beginning because I had just moved to a small town and knew basically no one. I loved to play basketball but was afraid to go to tryout (选拔)for the school's team because I didn't know anyone. One day all that changed when I missed the bus home and decided to shoot baskets on the school playground to kill time. The coach Mr Colbath had been watching me make various baskets and was pretty impressed with my moves.

    He came up to me and asked me who had taught me to play like that. I told him that my dad had taught me how to play basketball. He asked me if he would see me at the tryout on Friday, but I said no and told him why. He told me to have a try because I played very well and would maybe make some friends on the court. After thinking for a few minutes. I finally decided to have a try.

    On the day of the tryout, the coach came, found me and helped me practice before the tryout. He helped me a lot and I did very well at the tryout and many members of the team were quite impressed. I did make the team and over the next few years the coach helped me both on and off the court. He helped me do my math which I had such a difficult time with and he even taught me how to live independently.

    I will never forget Mr Colbath. He really inspired me and changed my life. I would not be the person that I am today if he had not taken such an interest in me when I was in high school.