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    Is there link between humans and climate change or not? This question was first studied in the early 1900s. Since then, many scientists have thought that our actions do make a difference. In 1997, the Kyoto Protocol explained our role in the Earth's changing atmosphere and set international limits for gas emissions(排放) from 2008 to 2012. Some countries have decided to continue these reductions until 2020. More recently, the Paris Agreement, stuck by nearly 200 countries, also aims to limit global warming. But just now how much warmer it will get depends on how deeply countries cut carbon emissions.

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    Being mistreated at work can out their negative emotions on loved ones at home. But a new study suggests that getting more exercise and sleep may help people better pope with them by, leaving them at work where they belong.

    Previous research shows that employees who are looked down on or insulted by colleagues are likely, go express their frustrations and behave angrily toward people outside of work, says study co-author Shannon Taylor, a management professor at the University of Central Florida's College of Business.

    The new study backs up this idea, but offers a bit of good news as well: Employees who averaged more than 10.500, steps a day or burned at least 2, 100 calories were less likely to mistreat their cohabitants than those who averaged fewer steps of burned fewer calories.

    The findings also revealed that when employees felt they had a bad night's sleep because of work issues, they, were more likely to be grouchy at home. “When you're tired, you're either less able or less motivated to regulate yourself” says co-author Larissa Barber, a professor of psychology at Northern Illinois University.

    Physical activity seems to counterbalance poor sleepy, Barber says, because it promotes healthy brain functions needed to properly regulate emotions and behaviors. “This study suggests that high amounts of exercise can be at least one way to improve the situations brought by sleep troubles that lead to negative behaviors at home,” she says.

    Barber acknowledges that finding time to work out and get a full night's sleep can be difficult when work pressure is mounting, and that often, job stress can be directly related to sleep quality. But, she says, making the effort to burn some extra calories and blow off some steam can be worth it. It's not only good for you, says Taylor,/ but it can benefit the people you live with as well.

    Many people want to grow their own garden, but they simply do not have the room. Do not worry. There is a solution. Consider container gardening.

    The great thing about container gardening is that you can use a variety of different containers. You simply have to use your imagination. You could create a beautiful garden with things such as cement blocks, hanging baskets, clay pots, or window boxes. There are so many options when it comes to container gardening; it is only limited by your imagination.

    Of course, you will want to take the following into consideration when you are ready to begin container gardening, in order for it to be successful.

    First, you should avoid any containers that have been used to store chemicals, as well as treated wood. This could lead to the sudden death of your flowers and lead to the failure of your container gardening.

    With any container that you choose, you need to ensure that it allows the water in it to drain when necessary. So it may be essential for you to create holes in the container to help this along. You should also make sure the containers are placed on a raised surface, not upon the floor, to ensure the best possible drainage.

    Ensure that the containers you choose are appropriate in size for the plants you choose. You need to prevent the roots from overgrowing the container.

    If you like fresh veggies, you could consider container gardening with vegetables. This requires a process that differs from that of flower gardening. Talk to an employee at a supply store in your area. They can help you choose the right containers for the vegetables you are wishing to grow.

    A research project jointly carried out by scientists from several British universities and institutes has drawn people's attention to the toothbrush again.

    Researchers have found that your toothbrush is home to more than 100 million bacteria. But there are hundreds of microorganisms in the mouths and your toothbrush probably won't make you sick unless there is an unhealthy balance of bacteria. Our immune system can usually take care of bacterial invaders. However, if others use your toothbrush, or you use someone else's, bacteria can be spread.

    They have also found the toothbrush holders are the third-most dirty household items (behind dish sponges and kitchen sinks), thus advocating cleaning the toothbrush holder regularly.

    The storage of your toothbrush in your bathroom is also important. Here are some storage tips from the researchers to keep your toothbrush as healthy as possible:

    Put your toothbrush as far away as possible from the toilet flushing.

    Let your toothbrush dry thoroughly between brushings.

    Don't use toothbrush covers, which can create a perfect breeding ground for bacteria.

    Keep your toothbrush upright in a holder rather than lying down.

    Keep toothbrushes separate. If toothbrushes touch, they can exchange and spread bacteria.

    There are products available that claim to sanitize（消毒）your toothbrush. While some of these products do kill some bacteria, there is no evidence that using them will reduce your risk of illness, according to the researchers.

    They recommend replacing your toothbrush every three to four months or more often if you are sick or if you have a weakened immune system. Children's toothbrushes may need to be replaced more often than adult brushes.

    A bright yellow “M” tells you that it's a McDonald's restaurant; we also associate the cheerful theme tune “I'm Lovin' It” with the famous US fast food.

A brand's music has a similar effect on its customers as its logo. “It appeals directly to the heart, where consumers' decisions are really made,” wrote Marketing Week.

This is probably why companies from around the world have recently focused more on building a “sonic (声音的) identity”.

    An example is the software company Tencent QQ. Since 2014, this Chinese company has been trying to trademark (申请商标权) its “Di-Di-Di-Di-Di-Di” notification sound. The trademark was finally approved on Nov 15, which means that Tencent's “Di-Di-Di-Di-Di-Di” notification sound is now protected by law and can only be used by QQ.

    Sound and music can also help tell stories. In Game of Thrones (《权力的游戏》) there are so many characters that it is difficult to memorize them all. So, they wrote melodies (旋律) specific to each family. The result is that characters do not only look familiar, but sound familiar too.

    “I think a huge reason why sound inspires action is that, on an unconscious level, we are always listening,” Lauren Nagel, executive creative director at Pandora Media, told GeoMarketing. “You can close your eyes, but you can't shut your ears.”