growing mountain of electronic waste like computers and personal digital assistants. The electronic waste stream is

increasing three times faster than traditional garbage as a whole.

        Electronic devices contain valuable metals such as gold and silver. A Swiss study reported that while the 

weight of electronic goods represented by precious metals was relatively small in comparison to total waste, the 

concentration (含量) of gold and other precious metals was higher in            So-called e-waste than in naturally 

occurring minerals.

         Electronic wastes also contain many poisonous metals. Even when the machines are recycled and the harmful 

metals removed, the recycling process often is carried out in poor countries, in practically uncontrolled ways which 

allow many poisonous substances to escape into the environment.

         Creating products out of raw materials creates much more waste material, up to 100 times more, than the 

material contained in the finished products. Consider again the cell-phone, and imagine the mines that produced 

those metals, the factories needed to make the box and packaging(包装) it came in. Many wastes produced in the

producing process are harmful as well.

        The U.S. Environmental Protection Agency notes that most waste is dangerous in that “the production, 

distribution, and use of products — as well as management of the resulting waste — all result in greenhouse gas 

release.” Individuals can reduce their contribution by creating less waste at the start — for instance, buying 

reusable products and recycling.

        In many countries the concept of extended producer responsibility is being considered or has been put in place 

as an incentive (动机) for reducing waste. If producers are required to take back packaging they use to sell their 

products, would they reduce the packaging in the first place?

Governments' incentive to require producers to take responsibility for the packaging they produce is usually

based on money. Why, they ask, should cities or towns be responsible for paying to deal with the bubble wrap (气

泡垫) that encased your television?

From the governments' point of view, a primary goal of laws requiring extended producer responsibility is to

transfer both the costs and the physical responsibility of waste management from the government and tax-payers 

back to the producers.

Holidays

    The UN refugee agency (难民署) is heaping pressure on Europe to help Italy defuse (平息) the “unfolding tragedy” of tens of thousands of migrants flooding its shores. Italy needs more international support to deal with a growing number of migrants who have braved a risky Mediterranean crossing to reach Europe this year, UN High Commissioner for Refugees Filippo Grandi said on Saturday.

     “What is happening in front of our eyes in Italy is an unfolding tragedy,” Grandi said in a statement. “In the course of last weekend, 12,600 migrants and refugees arrived on its shores, and an estimated 2,030 have lost their lives in the Mediterranean since the beginning of the year.” Italy, he said, was “playing its part” in taking in those rescued and offering protection to those in need. “These efforts must be continued and strengthened. But this cannot be an Italian problem alone.”

    Separately, a source in Paris said the interior ministers of France, Germany and Italy would meet in the French capital on Sunday to discuss an approach to help Rome.

    Violence in Calais

    Europe has been dealing with the worst migration crisis since the end of World War II with the arrival of large numbers of people fleeing the wars in Syria and Iraq while others from Africa are seeking an escape from poverty or political persecution (迫害).

    In the northern French port city of Calais, police stepped in over the past two days to break up fighting among African migrants armed with sticks and rocks. Calais has for years been a magnet (磁铁) for migrants and refugees hoping to cross the Channel to Britain.

    Last October, France broke up the disreputable tent camp known as “the Jungle” transferring thousands of migrants to centers around the country. But hundreds remain near the port, mostly Africans and Afghans, who fight sporadically with police as they make nightly attempts to stow away (偷乘) onto trucks heading across the Channel to Britain.

    While you might not realize it, the environment where you sleep can make a great difference in the actual quality of sleep that you get every night. With a few simple lifestyle changes, you can create a healthy sleep environment that helps improve your sleep quality.

    Go to bed and get up at the same time every day, even on weekends, holidays and days off. Studies show that people who do so are more rested than those who sleep irregularly (不规律地).

    Go to sleep only when you start to feel sleepy. If you don't fall asleep within about 15 minutes, get up and do something relaxing. Go back to bed when you are tired.

    Pay attention to what you eat and drink. Don't go to bed either hungry or stuffed. Your discomfort might keep you up. Avoid caffeine (咖啡因) 6 hours before you sleep. Having a cup of coffee within a few hours of bed time can keep you awake for hours when you are trying to sleep. Coffee isn't the only product containing caffeine. Avoid chocolate and tea, too. Also limit (限制) how much you drink before bed to prevent trips to the toilet at night.

    Many people turn on the TV before they go to bed. TV influences your natural sleep habits by making you stay up longer than you usually would, especially if you are watching something exciting. Instead of turning on the TV, read a book. Light reading before bed can help you fall into a deep sleep quickly.

    If you suffer from serious sleep problems, go to your doctor. Your doctor will help treat the problem or may advise you to see a sleep specialist.

    Recently, a 1935 letter in which Ernest Hemingway detailed his catch of a 500lb blue marlin(青枪鱼), an adventure that is believed to have partly inspired his novel The Old Man and the Sea, has been sold for﹩28, 000 (£22, 000).

    The handwritten letter was sent by Hemingway on 8 May to the fishing editor of the Miami Herald, laying out in great detail how the author and his friend Henry Strater battled to keep sharks away from the marlin after catching it off the Bahamian island of Bimini.

    Nate D Sanders, the auction(拍卖) company which sold the letter, said it documented for the first time in Hemingway's own words not only the size of the marlin, but also the attack by sharks, reflecting the plot of the novel.

    The company added that Hemingway's account of the marlin catch differed from other anecdotes of it, one of which described Hemingway using a machine gun on the sharks, which is said to have attracted more sharks rather than frightened them away.

    The Old Man and the Sea was also inspired by an anecdote told by Hemingway's Cuban friend Carlos Gutierrez. In 1936, Hemingway wrote in a magazine that Carlos had told him about an old fisherman who caught a great marlin alone.

    Three years later, Hemingway told his editor Max Perkins that he was planning a short story about the old commercial fisherman who fought the swordfish all alone in his sailing boat. Instead, he ended up writing For Whom the Bell Tolls, not returning to the story about the old fisherman until January 1951. It won him the Pulitzer in 1953, and was specifically cited when he was awarded the Nobel Prize in 1954.

    When I was a kid, I was the girl who kept the training wheels on my bike as long as possible. Even my younger sister had got rid of them much earlier than me. But as I began to grow older, this changed.

    All this happened on the Bike Safety Day. It is supposed to be a fun day at school when all of us kids bring our bikes to school and the school provides us with the opportunity to ride outside and learn proper bike safety. Sounds like fun, right? No. In fact, it caused me to panic. What was I going to say when my friends asked me about my training wheels?

    With the pressure of everyone seeing my training wheels, I determined to let them go. This was the first big change I'd ever made on my own.

    I went to my parents and told them all about my dilemma. They were more than happy to help. We went outside and got my bike. Instead of running away and hiding behind, I stood in front of my bike and took great pride in my decision as my dad removed the training wheels.

    I got on and steadied myself. My heart raced but my feet and hands were calm. My dad started to push before my feet even moved and suddenly I was off. The fear faded away and a relaxed mind came into its place. It was crazy to think how quickly I learned something that took so long for me to even try!

    My confidence soared. This was going to be the start of a brand new world for me. My accomplishment would carry me forth to new goals and wins. I realized that if I set my mind to something, I could achieve it.