1 . Mandara seemed to know something big was about to happen. So she let out a yell, caught hold of her 2-year-old daughter Kibibi and climbed up into a tree. She lives at the National Zoo in Washington D.C..

And on Tuesday, August 23rd, witnesses said she seemed to sense the big earthquake that shook much of the East Coast before any humans knew what was going on. And she’s not the only one. In the moments before the quake, an orangutan (猩猩) let out a loud call and then climbed to the top of her shelter.

“It’s very different from their normal call,” said Brandie Smith, the zookeeper. “The lemurs (monkey like animals of Madagascar) will sound an alarm if they see or hear something highly unusual.”

But you can’t see or hear an earthquake 15 minutes before it happens, can you? Maybe you can——if you’re an animal.

“Animals can hear above and below our range of hearing,” said Brandie Smith. “That’s part of their special abilities. They’re more sensitive to the environment, which is how they survive.”

Primates weren’t the only animals that seemed to sense the quake before it happened. One of the elephants made a warning sound and a huge lizard (蜥蜴) ran quickly for cover. The flamingoes (a kind of birds) gathered before the quake and stayed together until the shaking stopped.

So what kind of vibrations (震动) were the animals picking up in the moments before the quake? Scientist Susan Hough said earthquakes produce two types of waves——a weak “P” wave and then a much stronger “S” wave. The “P” stands for “primary”. And the “S” stands for “secondary”. She thinks the “P” wave might be what sets the animals off.

Not all the animals behaved unusually before the quake. For example, Smith said the zoo’s giant pandas didn’t jump up until the shaking actually began. But many of the other animals seemed to know something was coming before it happened. “I’m not surprised at all,” Smith said.

2 . Sports can help you keep fit and get in touch with nature. However, whether you are on the mountains, in the waves, or on the grassland, you should be aware that your sport of choice might have great influence on the environment.

Some sports are resource-hungry. Golf, as you may know, eats up not only large areas of countryside, but also tons of water. Besides, all sorts of chemicals and huge amounts of energy are used to keep its courses （球场） in good condition. This causes major environmental effects. For example, in the dry regions of Portugal and Spain, golf is often held responsible for serious water shortage in some local areas.

There are many environment-friendly sports. Power walking is one of them that you could take up today. You don’t need any special equipment except a good pair of shoes; and you don’t have to worry about resources and your purse. Simple and free, power walking can also keep you fit. If you walk regularly, it will be good for your heart and bones. Experts say that 20 minutes of power walking daily can make you feel less anxious, sleep well and have better weight control.

Whatever sport you take up, you can make it greener by using environment-friendly equipment and buying products made from recycled materials. But the final goal should be “green gyms”. They are better replacements for traditional health clubs and modern sports centers. Members of green gyms play sports outdoors, in the countryside or other open spaces. There is no special requirement for you to start your membership. And best of all, it’s free.

3 . It's not always easy to run an energy efficient house. But there are some simple things anyone can do.

Go LED with your lighting.

There are sevenal benefis to switching to energy efficient light bulbs. One of them is saving money- though the LED bulbs might cost more than traditional bulbs, the average saving on LED bulbs is $ 75a year._    1    LED bulbs can last years or even decades.

Don't run your air conditioner constantly

As the weather starts to warm, you might be thinking about the right time to turrn on your air conditioner. _    2    Air conditioner units are among the most energy-consuming appliances in your home. Using electrical fans instead of your air conditioner is much more efficient and it's a big money saver, too.

    3    

On those days when you treat a large crowd and are low on time，don't beat yourself up if you have to use disposable(一次性的) dishware. This method reduces your water usage and saves energy. And as a bonus, if your city offers roadside recycling, your paper plates may qualify.

Update your insulation(隔热)

All that work you're doing to save energy in your home could go to waste if it's not properly insulated. If you can't insulate the whole house, pay special attention to the roof: it reduces air flow from outide. By updating your insulation,you're saving money.    4    

Take showers instead of baths

A full bathtub requires about 70 gallons of waler.    5    Showers are quite different---taking a five-minute shower uses only 10 to 25 gallons!

5 . Every year, over 7.72 trillion kilograms of plastic is washed into the oceans. There are five huge areas in the world’s oceans that are a “soup” of floating rubbish. One of these areas, the Great Pacific Garbage Patch (GPGP), is three times as large as France.

Over a year ago, a group called Ocean Cleanup began using a huge floating screen to try to clean up plastic pollution in the ocean. After several failures, the group is now collecting plastic in the Great Pacific Garbage Patch. But the plastic is spreading out over a large area, so it's impossible to collect it piece by piece. So, the Ocean Cleanup had a plan. They got a long floating U-shaped tube with a screen hanging below it. As the tube and screen are pushed by the water and the winds, the U is meant to collect plastic rubbish, making it easy for a ship to collect and remove the plastic. The system uses the power of the wind and ocean, so it doesn’t need fuel.

The group began testing the first version, called “System 001”, last September. But it soon became clear that the screen was just moving with the plastic, not collecting it. Sometimes plastic would wash over the top of the tube. Even worse, System 001 got broken by surging seas and had to be towed to Hawaii for repairs.

But Mr. Slat, who got the idea for the Ocean Cleanup system, sees the project as an experiment, which means a failure is a chance to learn. The team collected and studied lots of information about what worked well and what didn’t. Then they changed the design. In June, an improved version, called “System001/B” was towed back to the GPGP.

The new version has a parachute (降落伞) attached to it. This makes the system move slightly slower than the plastic, allowing the plastic to be collected inside, as planned. But this success is still just the beginning of the work of the Ocean Cleanup. They want a better and larger system.

6 . Carbon dioxide emissions from transportation are now thought as the top source of green-house gases. One of the most effective ways to reduce your carbon footprint is to reconsider how much, and how often, you travel.

Going car free for a year could save about 2. 6 tons of carbon dioxide, according to a study from the University of British Columbia. How can you stop using a car? Try taking a train, bus or better yet, riding a bike.

But let’s be realistic. You will likely need to use a car this year. So, when you do, here are some tips to make your trip more climate-friendly. Driving efficiently can help to reduce emissions. Go easy on the gas and brakes and drive like you have an egg under your foot. Regularly service your car to keep it more efficient. Keeping your tires pumped correctly can re-duce emissions. Low tire pressure will hurt your fuel economy. Air conditioning and frequent city driving can make emissions go up. So cut down on these as often as possible. Use cruise control (定速巡航) on long drives-in most cases, this can help to save gas. Don’t weigh your car down with extra things that you don’t need on your trip.

Fly often? Taking one fewer long round-trip flight could reduce your personal carbon footprint significantly. If you use public transportation often and fly less, your carbon foot-print might still be relatively sustainable, but if you drive and fly a lot, your emissions will be sigher. If you can’t avoid flying, you can offset them by donating money to sustainable proacts, such as supplying efficient stoves to rural homes, or projects which help farmers deal with crop waste environmentally.

9 . Different ways have been applied to dealing with waste paper, specifically used newspapers. Some people put them in the recycling area, while others keep them as wrappers (包装纸). While these are both good measures, a Japanese publishing company had a better idea for their end use.

The Mainichi Newspapers Co., Ltd. invented the “Green Newspaper”, which allows people to grow plants with it. This unique newspaper was published on Greenery Day, which is focused on environmental news and made of green paper with seeds placed into it. What makes it even more special is the ink (油墨) used to print words and photos, which is made from plants. The publisher advises readers to tear the used newspaper into small pieces and plant them in a container with soil. They should water them, like they would do for any plant. Within a few weeks, the seeds will grow into plants.

This brilliant concept was invented by Dentsu Inc., one of Japan’s most famous advertising companies, which works with the publishing company on the initiative (倡议). The publisher’s belief is environmental sustainability (持续性). As its mission statement says, “The Mainichi doesn’t take action only through information, but also by solving global issues.” With joint efforts, this initiative has reached the corners of Japan and sold around millions of copies daily. Other such initiatives producing plantable paper are also seen in India and the US.

About 95 million trees are lost for producing newspapers every year. The Internet, the number of whose users stands for 62.5 percent of the population worldwide, has influenced how people read news and the print readership has dropped greatly. However, the reinvention and reimagination of this newspaper will bring about a change in the publishing industry as well as having an environmental influence.

10 . There has been a dramatic increase in the number of natural disasters over the past few years, and it is assumed that global warming and climate change could cause even more disasters in the future. Some of the world’s leading cities are facing disasters like floods and heat waves.

London

London’s flood defences are getting older. Since 1982, the Thames Barrier(水闸)has protected the city from the threat of flooding, but it was only designed to last until 2030 and close once every two or three years. About 26 years later, the barrier now closes five or six times a year and according to Environment Agency predictions, by 2050 the barrier will be closed on almost every tide if the problem is not addressed.

There are 26 underground stations, 400 schools, 16 hospitals, an airport and 80 billion worth of property in London’s flood risk area, so large scale flooding would be disastrous.

Paris

Over a six­week period in July and August 2003, more than 11, 400—mainly elderly people—died in France from dehydration(脱水)and extremely high body temperature in a deadly heat wave. Heat waves of similar intensity(强度)are expected every seven years by 2050, so what can be done to make sure such a disaster does not happen again?

One solution is to have air­conditioners installed in elderly care homes. But this is considered a short­term solution, as the increase in demand for electricity also increases carbon emissions(排放)．

In Paris the local authorities are encouraging architects to design new types of buildings such as the building “Flower Tower”, which uses a covering of bamboo to act as a natural air­conditioner.

Shanghai

Shanghai is one of the fastest growing cities on Earth. It has a population of 18 million and is only 4 meters above sea level. Sea levels are predicted to rise by 20 cm within the next century.

An estimated 250，000 people move to Shanghai every year in search of work, placing extra demands on energy consumption. China relies heavily on coal­fired power stations, but these emissions increase temperatures and, in turn, warmer seas increase the risk of typhoons.