Today, the world's diversity (多样性) of food crops is quickly decreasing. But scientists around the world are taking action. They are building seed banks. At seed banks, scientists store the seeds of many different crops.

    There are now 1,400 seed banks around the world. However, some banks are in warm countries. If the electricity fails, the seeds will get too hot and die. Other seed banks are in countries troubled by war. Sometimes people damage the seed banks. If this happens, valuable seeds can be lost forever!

    The organization Global Crop Diversity Trust decided they wanted to deal with this problem. So, they decided to build a global seed bank. This seed bank would contain a back-up, or extra copy, of all the world's seeds. Smaller seed banks would still collect and keep local seeds. But they would also send copies of their seeds to the global bank.

    Scientists from the Global Crop Diversity Trust chose the cold, snowy mountains of Svalbard, Norway to build the global seed bank — the Svalbard Global Seed Vault (斯瓦尔巴全球种子库). Organizations, farmers, or local seed banks store their extra seeds there. And the people who place their seeds in the vault are the only people who can take them out. They pay to ship their seeds to Norway, but it does not cost them any money to store their seeds. The Global Crop Diversity Trust pays for this.

    Cary Fowler is a scientist who heads the Global Crop Diversity Trust. He said, “If the Seed Vault simply supplies seed banks with copies of seeds that those banks lost by accident, the Seed Vault will be worth more than it cost.”

    The Maldives faces the threat of extinction from rising sea levels, but the government said on Thursday it was looking to the future with plans to build homes and a golf course that can float.

An increase in sea levels of just 18 to 59 centimeters would make the Maldives — a nation of a number of tiny coral islands in the Indian Ocean — not suitable for humans to live in by 2100, the UN's climate change experts have warned.

    President Mohamed Nasheed has declared a fight for survival, and last month he signed a deal with a Dutch company to study suggestions for a floating structure that could support a conference centre, homes and an 18-hole golf course.

    The company, Dutch Docklands, is currently building floating developments in the Netherlands and Dubai. Its website said it undertook projects that make “land from water by providing large-scale floating constructions to create similar conditions as on land”.

    The Maldives began to work on an artificial island known as the Hulhumale near the crowded capital island of Male in 1997 and more than 30,000 people have been settled there in order to ease crowdedness. The city, which has a population of 100,000, is already protected from rising sea levels by a 30-million-dollar sea wall, and the government is considering increasingly imaginative ways to fight climate change.

    Nasheed, who held the world's first underwater cabinet (内阁) meeting in October to highlight his people's serious and difficult situation, has even spoken of buying land elsewhere in the world to enable Maldivians to relocate if their homes are completely covered.

    He has also promised to turn his nation into a model for the rest of the world by becoming “carbon neutral (碳中和)” by 2020. His plan involves ending fossil fuel use and powering all vehicles and buildings from “green” sources such as burning coconut husks.

    All over the world people enjoy sports. Sports help to keep people healthy, happy and help them to live longer.

    Sports change with the seasons. People play different games in winter and summer.

    Games and sports often grow out of people's work and everyday activities. The Arabs use horses or camels in much of their everyday life; they use them in their sports, too.

    Some sports are so interesting that people everywhere go in for them. Football, for example, has spread around the world. Swimming is popular in all countries near the sea or in those with many rivers.

    Some sports or games go back thousands of years, like running or jumping. Chinese boxing, for example, has a very long history. But basketball and volleyball are rather new. Neither one is a hundred years old yet. People are inventing new sports or games all the time.

    People from different countries may not be able to understand each other, but after a game they often become good friends. Sports help to train a person's character. One learns to fight hard but fight fair, to win without pride and to lose with grace.

    It had been a long winter. Bitter cold, snowy days had hit us again and again. On the warmer days there had been little sunshine, but only cold, icy rain. The sun had become such a rare sight that I had to look at a picture of it on my wall calendar from time to time to remember what it looked like. The grass had remained brown and dormant（潜伏的）in the grassland. My own backyard had turned into a muddy mess that tried to steal the shoes right off my feet as I walked on it. My heart ached and longed for spring, and my own good cheer had trouble rising up against the continuous, cold, gray days.

    The rain poured down on me as I walked my dogs, holding their leashes in my icy fingers. I looked up at the sky hoping to see the sun smiling down with its warm, golden face. But it was no use. It was then, however, that I saw it. It wasn't the smiling face of the sun in the sky but a little, yellow face peeking（微露出） through the mud. It was a tiny flower, and it filled my heart with hope and joy. I smiled and thanked God for this little sign that winter would soon be over and that spring would arrive. I felt my good cheer rising up at last and I promised God that I would share it with everyone I could.

    One day that tiny flower's seeds will fill the grassland with little, yellow faces smiling up from the ground. Its work will make this world a better and more beautiful place. May we all do the same. May we all shine our light and share our love even on the coldest and grayest days. May we all help to share a bit of spring in winter. May we all work to make this world better and brighter even when it is at its darkest.

    My elephant adventures began in 1984 when, with our one-year-old daughter, my husband and I crossed the jungle in a jeep, slicking behind a lorry for comfort and company. The elephants standing like watchers on either side of the forest highway had us praying for our safety. One elephant made loud noise and angrily pawed (抓) the ground, warning us off. We raced away before they could attack.

    It was wise to keep elephants at a distance. We heard stories of tourists whose jeeps were overturned, and a couple of photographers were killed because they moved too close. Elephants are misleading animals. They give people an impression of being quiet and kind, so tourists think it's safe to picnic in the jungle (丛林). Yet angry elephants have knocked them down in seconds before they could take off.

    Elephants might make life unpredictable and dangerous. It's difficult for inexperienced environmentalists to even, begin to grasp this reality. I've heard city people say " We humans are encroaching (侵害) on their forests." But what's the solution?

    When a poor farmer borrows heavily to plant a crop, he'll do anything to protect it His life depends on it Elephants ruining an about-to-be-harvested corn field cannot expect to be welcomed like special guests. The battle between beast and farmer is violent.

    Experts are working on solutions to human-elephant conflicts (冲突). Some are sure to fail to like the plans to build electric fences around human settlements. Elephants rapidly figure them out and come in, around and over them.

    There are more questions than answers, for sure. But as my husband said, "More people die in car accidents every single day, in every city on the earth. But they won't take cars off the roads, will they?" So we need to seek practical ways of preventing elephant accidents.

    From whale watching to shopping, the activities are as varied as the scenery along Queensland's Great Sunshine Way.

    Day 1

    Morning

    The Sunshine Way begins in Queensland's Gold Coast. Start the day with a visit to one of the Gold Coast's world-class theme parks. Then see stunt (特技) shows at Warner Bros Movie World. You can also jump on exciting rides and visit the new Lego Store at Dreamworld.

    Afternoon

    While the drive to Brisbane only takes an hour, enjoy a trip inland into the Gold Coast hinterland and explore the rainforest hikes and waterfalls in Tamborine, Lamington and Springbrook national parks.

    Day 2

    Morning

    Wake early to climb Brisbane's famous Story Bridge, where you can see the sun rise over the city. From the top, you'll be rewarded with full views over the snaking river, out to Moreton Bay in the east and the green hills of the Scenic Rim to the west.

    Afternoon

    Drive 144 kilometers north to Noosa. Hastings Street is thick with designer fashion stores and impressive restaurants. Explore one of the walking trails that run through Noosa National Park. The Coastal Track is a popular choice. Look out for dolphins and whales between May and November.

    Day3

    Morning

    Continue 185 kilometers north, through the gold rush towns of Gympie and Maryborough to the whale watching capital of the world, Hervey Bay. About 10,000 humpback whales visit it every year, making it the best place to see the ocean giants up close.

    Afternoon

    From River Heads, catch a 50-minute ferry to the world's largest island completely made of sand, Fraser Island. Alternatively, continue 110 kilometers north to Bundaberg. Then travel just east of the city to Mon Repos Beach in time for the sunset.