Does Recycling Work For Plastic?
Dealing with plastic waste is always a tough problem. According to the Organization for Economic Co-operation and Development (OECD), half of the world’s plastic waste ends up in a landfill, 19% burned, and another 22% escapes waste management systems and goes into uncontrolled dumpsites.
So environmentalists suggest plastic waste should be recycled properly, which proves an effective way to handle other waste like paper, cardboard, metal and glass. However, a new study by Greenpeace, and reporting in the Boston Globe, suggests that recycling plastic is a “myth” and raises a major question about the future: does recycling work? Unfortunately, the short answer is “not really.”
There’s been a lot of debate over what really happens to recycled plastic. But scientists say that recycling plastic waste has mostly failed because it’s very difficult to collect and nearly impossible to sort. Because plastic is often made from harmful materials, it can be harmful to the environment to reprocess.
Much of the solution falls on big companies to change the way they do business. The way forward seems to be mostly to cut down on companies’ reliance on plastic packaging, and to move toward reusable packaging and packaging-free alternatives. Above all, companies need to phase out all single-use plastics. For the consumer, living more plastic-free is the only real solution available. Avoiding drinks in plastic containers, using a travel mug or reusable water bottle, bringing your own reusable bag, buying in bulk and cutting back on pre-packaged foods are all a good start.
But in the end, corporate America needs a deeper commitment to the plastic waste problem. “Companies must take action now to get rid of single-use plastics and packaging and not rely on false solutions such as recycling,” says Greenpeace.
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Are Oceans Silent?
Most sea creatures, from whales and dolphins to fish, sharks and shrimps, respond to sound, and many can produce it. They use it to hunt and to hide, find mates and food, send messages and give warnings, establish territories, warn off competitors, confuse their targets, deceive enemies, and sense changes in water and conditions. Marine animals click bones, grind teeth and belch gases (磨牙打嗝); use special organs to make various noises. Far from the ‘silent deep’, the oceans are so noisy.
Into this age-long confused noise, in the blink of an evolutionary eye, has entered a new thunder: the trembling sound of mighty engines as 46,220 large ships passed the world’s shipping courses. Scientists say that background noise in the ocean has increased roughly by 15 decibels (分贝) in the past 50 years. It may not sound like much in overall terms, but it is enough, according to many marine biologists, to mask the normal sounds of ocean life going about its business. At its most intense, some even say noise causes whales to become disoriented, dolphins to suffer from ‘the bends’, fish to go deaf, leave their breeding grounds or fail to form groups—enough to disorganize the basic biology of two thirds of the planet.
“Undersea noise pollution is like the death of a thousand cuts”, says Sylvia Earie, chief scientist of the U.S. National Oceanic and Atmospheric Administration. “Each sound in itself may not be a matter of critical concern, but taken all together, the noise from shipping, earthquake-related surveys, and military activity is creating a totally different environment than existed even 50 years ago. That high level of noise is bound to have a hard, sweeping impact on life in the sea.
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91. The Problem of Packaging
A large source of rubbish is packaging material. It often makes up more than 30 percent of the total. To understand why this is true, think of the packaging commonly used for a simple product, such as toothpaste. The packaging includes not only the tube for the toothpaste, but also the box for the tube. This box is put into a plastic wrapper. Then, the boxes are transported in a cardboard container.
Most packaging material ends up in a landfill after it is thrown away. Though necessary, landfills take up valuable space, often stink, and can leak harmful substances into the soil. Landfills not included, the production of packaging material itself is a major source of air and water pollution.
People are now trying to solve the problems caused by packaging materials. In 1991, Germany took the lead by requiring companies to recycle the packaging used for their goods. To do this, the companies set up recycling bins in every neighborhood. Consumers now separate their rubbish into three categories—metal, plastic and paper cartons. They then put it into the appropriate bin. The rubbish sorted, it is transported to recycling company for processing.
The programme worked well at first. However, the amount of rubbish has begun to increase again. One reason for this is that many consumers no longer reduce waste because they think the problem is solved. It seems that to properly deal with the problem of rubbish, everyone must remain alert and do their part.
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Does Kilimanjaro Still Have Its Beauty?
Kilimanjaro is a watershed (分水岭)between Tanzania and Kenya. It is a volcano and a snowy mountain. Surrounded by mountain forests, Kilimanjaro is home to numerous mammals, some of which are endangered. Kilimanjaro was established as a national park in 1968 and was added to the World Heritage List in 1981. In the Tanzanians’ mind, Kilimanjaro is not just a bright mountain, and it is also an interesting mountain. Kilimanjaro is a world-famous tourist resort with the world's explorers and mountain enthusiasts gathering there.
Every year about 40,000 people attempt to climb Kilimanjaro, the highest mountain in Africa. They bring with them lots of waste. The crowds might damage the beauty of the place. The glaciers are disappearing, changing the face of Kilimanjaro. Hearing these stories, I’m wondering about the place-other destinations are described as purer natural experiences.
However, I soon discover that much has changed since the days of disturbing reports of camps among tons of rubbish. I find a clean mountain, with toilets at camps and along the paths. The environmental challenges are significant but the efforts made by the Tanzania National Park Authority seem to be paying off.
The best of a Kilimanjaro experience, in my opinion, isn’t reaching the top. Mountains are regarded as spiritual places by many cultures. This view is especially evident on Kilimanjaro as climbers go through five ecosystems in the space of a few kilometers. At the base is a rainforest. It ends suddenly at 3, 000 meters, giving way to lands of low growing plants. Further up, the weather changes—low clouds envelope the mountainsides covered with thick grass. I count twelve shades of green from where I stand. Above 4, 000 meters is the highland desert: gravel (砾石)，stones and rocks. Finally, you climb into an arctic-like zone with permanent snow and the glaciers that may soon disappear.
Does Kilimanjaro deserve its reputation as a crowded mountain with lines of tourists ruining the atmosphere of peace? I found the opposite to be true.
