Climbers at Qomolangma are being asked to clean up after themselves.

Qomolangma has earned the nickname（绰号）the World's Highest Garbage Dump（垃圾场）.

    Climbing Qomolangma,the world's highest mountain,just becomes more challenging.The government of Nepal is telling climbers they cannot leave trash on the trails.Each climber will have to come down the mountain with at the least 18 pounds of garbage.That's the average amount of trash a climber leaves behind on Qomolangma.

    Officials say climbers are responsible for their own trash.“We are not asking climbers to pick up trash left by someone else,”said the Nepal Tourism Ministry.“We just want them to bring back what they took up.”

    More than 4,000 people have reached the 29,035-foot summit（顶峰）in more than 60 years.Leaving trash along the way helps climbers keep their bags light so they have energy to reach the summit.“The trash problem in Qomolangma is not new.”Burlakoti says.“When the people started to climb the mountain,they started to leave their garbage there.”They have left behind bottles,food boxes and equipment.

    The new rule came into effect in April,2014.To make sure it is followed,climbers will have to deposit money（交保证金）before they climb.Once they climb back down the mountain,officials will check climbers at a return camp to make sure they have the required 18 pounds of trash.If they do,their money will be returned to them.If they do not,climbers will not receive their deposit and they will not be given a permit the next time they want to climb Qomolangma.

    The goal is to make sure no more litter will be left on Qomolangma."As we offer Qomolangma to all the people of the world they should take responsibility to clean it."Burlakoti says,“After seeing the results from this,we will also apply this rule to other mountains.”

    Eating spicy foods frequently may be tied to a slightly lower risk of an earlier death, according to a new study. However, more research is needed to confirm the link, experts say.

    The researchers found that the people in the study who ate spicy foods one or two days a week were 10 percent less likely to die during the study, compared with those who ate spicy foods less than once a week, according to the study published today(Aug. 4) in the journal The BMJ. Moreover, the people in the study who ate spicy foods three or more days a week were 14 percent less likely to die during the study, compared with those who ate spicy foods less than once a week.

    However, the study was observational, and so it is too early to tell whether there is a causal relationship between eating spicy food and lower mortality, said study author Lu Qi, an associate professor at Harvard School of Public Health in Boston, Massachusetts. "We definitely need more data from other populations," Qi told Live Science. “The researchers don't know why exactly the consumption of spicy food may be linked to lower mortality, but previous research on cells and animals has suggested several possible mechanisms,” Qi said.

    “It is unclear whether the observed associations are the direct result of spicy food intake, or whether spicy foods are simply a marker for other beneficial but unmeasured dietary components(成分),” said Nita Forouhi, a nutritional expect. At this point, researchers don't know for sure whether eating spicy foods can have a beneficial effect on human health and mortality, Forouhi wrote. "Future research is needed to make sure whether spicy food consumption has the potential to improve health and reduce mortality directly, or if it is merely a marker of other dietary and lifestyle factors," she said.

    Whether in the home or the workplace, social robots are going to become a lot more common in the next few years. Social robots are about to bring technology to the everyday world in a more humanized way, said Cynthia Breazeal, chief scientist at the robot company Jibo.

    While household robots today do the normal housework, social robots will be much more like companions than mere tools. For example, these robots will be able to distinguish when someone is happy or sad. This allows them to respond more appropriately to the user.

    The Jibo robot, arranged to ship later this year, is designed to be a personalized assistant. You can talk to the robot, ask it questions, and make requests for it to perform different tasks. The robot doesn't just deliver general answers to questions; it responds based on what it learns about each individual in the household. It can do things such as reminding an elderly family member to take medicine or taking family photos.

    Social robots are not just finding their way into the home. They have potential applications in everything from education to health care and are already finding their way into some of these spaces.

Fellow Robots is one company bringing social robots to the market. The company's “Oshbot” robot is built to assist customers in a store, which can help the customers find items and help guide them to the product's location in the store. It can also speak different languages and make recommendations for different items based on what the customer is shopping for.

    The more interaction the robot has with humans, the more it learns. But Oshbot, like other social robots, is not intended to replace workers, but to work alongside other employees.“We have technologies to train social robots to do things not for us, but with us,” said Breazeal.

    Businesses are witnessing a difficult time, which has in turn produced influence on consumers, desire to go green. However, shoppers are still laying stress on environmental concerns.

    Two thirds of customers say that environmental considerations inform their purchases to the same degree as they did a year ago, while more than a quarter say that they are now even better aware of the environmental effect on what they buy.

    This may help to influence how shops store goods on their shelves. And the companies should still make efforts to become more environmentally friendly. Two out of three people think it is important to buy from environmentally responsible companies, with about one in seven saying that they had even decided to take their custom elsewhere if they felt a company's environmental reputation was not good enough.

Harry Morrison, chief executive (主管) of the Carbon Trust, sympathizes: "I understand this situation where survival is very important now. But from environmental considerations, the clock is ticking—we don't have much time. In addition, cutting carbon has an immediate effect as costs drop and a medium-term benefit for the brand."

    Larger companies have an extra motivation to look at reducing their carbon footprint, as new rules next year will require businesses to buy carbon allowances to make up for their emissions (排放). Those that have taken early action will have a head start. More than two thirds of consumers are not clear about which companies are environmentally responsible. This suggests that firms that are able to relay clearly their message to the public will be in a pole position to attract shoppers.

The Carbon Trust believes that it can help by informing customers about the good work companies are doing. "When companies are granted (授予) the standard, they can use a logo (标识) in all their marketing which makes it clear that they are working towards cutting emissions," Mr. Morrison said.

    October 15th is the Global Hand washing Day. Activities are planned in more than 20 countries to get millions of people in the developing world to wash their hands with soap（肥皂）. For example, donators（捐献者）will give 150,000 bars of soap to schools in Ethiopia.

    Experts say people around the world wash their hands every day, but very few use soap at so-called important moments. These include after using the toilet, after cleaning a baby and before touching food.

    Global Hand washing Day is the idea of the Public-Private Partnership for Hand washing with Soap. Partners include the United Nations Children's Fund, American government agencies, the World Bank and soap makers Unlever and Procter and Gamble. The organizers say all soaps are equally effective at removing disease-causing germ（细菌）. They say the correct way to wash is to wet your hands with a small amount of water and cover them with soap. Rub it into all areas, including under the fingernails. Rub for at least twenty seconds. Then rinse well under running water. Finally, dry your hands with a clean cloth or wave them in the air.

    The Partnership for Hand washing says soap is important because it increases the time that people spend in washing hands. Soap also helps to break up the dirt that holds most of the germs. And it usually leaves a pleasant smell. The Partnership for Hand washing also says washing with soap before eating or after using the toilet could save more lives than any vaccine（疫苗）or medicine. Hand washing could also prevent the spread of other diseases. When people get germs on their hands, they can infect（传染）themselves by touching their eyes, noses or mouths. Then they can infect others.

    Every month we look at a different artist. We think Haroshi is super cool—he makes sculptures(雕塑) from skateboards.

    Haroshi is in his late 30s. He's a skateboarder but he also makes things from wood. He began skateboarding when he was 15 years old and he loved it. He used to skate every day. Now, if you know anything about skateboarding, you'll know that skateboards don't last forever because they break. But Haroshi didn't throw his out because he was fond of them. Over time he built up a big collection and at the same time he learnt about all the different types of skateboard. Surprisingly, not all skateboards are of the same shape and actually they are often built in different ways. By the time he was 25, he had an enormous collection of old skateboards.

    He decided he had to do something with them so he started to cut them up. As he was doing that, he noticed some interesting patterns in the wood. He then cut more and stuck them on top of each other. The first thing he created from the wood was a piece of jewelry. He created something new from something old.

    Nowadays, however, he is known for his extremely large 3D wooden sculptures. His ideas generally come from skateboarding culture, ranging from skateboarding cats to cool trainers, but also everyday topics such as hurting yourself, getting better, being crazy about something and of course, growing up. All skateboarders will understand these. Haroshi has made over 40 pieces and each piece takes a very long time. There is no doubt that he is very talented but he's had no formal art training. He taught himself.

    Haroshi held an exhibition in London last month and three of us from @teenattack went along. As we entered the first room, we saw a huge bird that covered one wall. It was absolutely enormous! There was also a sculpture called Ordinary life. It looked like a broken leg—a very common problem, of course. It's incredible to think that these sculptures are all made from broken skateboards. But there's something else that is really interesting about Haroshi's work.

    In the twelfth century a sculptor called Unkei placed a glass ball in each of his works to show the heart of the piece. Haroshi also places something inside his sculptures—a piece of broken skateboard. In this way, he gives his sculptures life. We think that is just awesome!