 Welcome to Spotlight. I'm Liz Wade. And I'm Bruce Gulland. Spotlight uses a special English method of broadcasting. It is easier for people to understand no matter where in the world they live. Dr. David Vaughn works in his laboratory. It is located at Moat Tropical Research Center in Florida in the United States. Dr. Vaughn's laboratory is not a small room like other laboratories. He works outside, by the ocean. Vaughn is a marine biologist. He works with very small creatures that live in the sea. People may not think this work is very important. But Dr. Vaughn has a question for such people. He asks, Do you like to breathe? All life on Earth depends on life in the ocean. Human activities have been destroying ocean life for many years. But now there is some good news for the oceans. Today's Spotlight is on Dr. Vaughn's work with underwater animals called corals. Many people think that coral is a plant or a shell. But corals are small animals that live under the ocean. These animals group together. They create beautiful shells made of minerals. This shell can grow in many colors and shapes. It can look like a wrinkled brain or a cabbage. It can even look like a tree or grow into tall, round pillars. Many coral shells together are called a coral reef. Reefs are found in more than 100 countries around the world. The largest and most famous is the Great Barrier Reef. It is off the northeastern coast of Australia. This reef is thousands of kilometers long. Coral reefs can be large but they are also very delicate. It is easy to destroy them. A lot of the world's coral has died. This is mostly because of changes in the environment. People pollute the water and cause changes to the oceans. Rising carbon dioxide levels are making the ocean hotter and more acidic. People also overfish. They catch and remove the fish that support coral. The World Resources Institute did a study of coral reefs in 2011. They found that 60% of the world's coral reefs are threatened. And they think that by 2030 more than 90% will be in danger. This would be very bad for the earth. Coral reefs are not just beautiful underwater areas. They are also homes for thousands of different species of creatures. This includes many kinds of fish, plants and other underwater animals. Reefs are important to land too. Corals provide a barrier for many coastlands. Reefs protect land from high water and strong winds. They can stop damaging forces before they hit the coast. And reefs are good for people too. Recently, scientists have found that parts of coral can be used to treat diseases such as cancer, arthritis, asthma and heart disease. Finally, creatures on land, including humans, need underwater creatures like coral to be able to breathe. The plants in the ocean produce most of the world's oxygen gas. These plants depend on coral for protection and particular chemicals. Scientists like David Vaughn have worked for decades to find ways to protect the coral reefs. Vaughn is over 60 years old. He has seen the coral reefs decrease over his lifetime. This made him very sad. But one day, he discovered something new to him. It was a very simple technology and it changed everything for him. In a video published by The Atlantic, Dr. Vaughn said, Ten years ago, I was planning to work for two more years. But when we saw that there was this new technology for restoration, I had to stay working until it was done. The new technology that Dr. Vaughn discovered is called microfragmentation. This technology works with microfragments, very small broken up pieces. Scientists break the corals into small pieces. The coral grows very quickly using its own natural healing process. Using microfragmentation, corals grow 25 to 50 times faster than they would in other situations. Dr. Vaughn discovered this process accidentally. One day he broke an old piece of coral apart. He thought it would die, but it did the opposite. Vaughn told the Herald Tribune about it. I picked up the coral, expecting to see it was worse. But it had completely grown over a hole the size of a large coin. From birth, it took that coral two years to grow to that size, and it had grown back in two weeks. Dr. Vaughn's team is now producing thousands of corals by microfragmentation. They work mostly with the coral in Florida Reef Tract on the southeastern coast of the US. They grow the coral in large tanks of water in his research laboratory. Then they put them back into the ocean. They attach the new corals to old corals that have died. Some of the new planted coral has died. But most of it continues to grow. And Dr. Vaughn and his team are learning more every day about how to make the new coral successful. These fast-growing corals are an amazing new hope for oceans. But Dr. Vaughn himself also brings hope. Many people who are Dr. Vaughn's age stop working and retire. But he is continuing to work. Lindsay Eric works with Dr. Vaughn. She talked to the AARP, an organization in the United States for people over 50 years old. In a video, she said, Dr. Vaughn has seen the coral reef destroyed even more than any of us has. He saw it when it was beautiful. Now I may see it when I am Dr. Vaughn's age, the way he saw it when he was my age. So we're going to switch the generations. I can finally see what the reef looked like 60 years ago compared to now. Dr. Vaughn says that he will not stop working until there are a million corals back on the reef. He thinks this can be done in three to five years. He tells the AARP why he thinks his method will be successful. He says, People think that we have ruined this planet with technology. But with technology, we can bring it back. Have you ever seen coral in real life or pictures? What do you think people can do to protect areas of coral? Tell us what you think on our website or email us at radio at radioenglish.net You can also comment on Facebook at facebook.com slash spotlight radio. The writer of this program was Reena Dam. The producer was Michio Osaki. The voices you heard were from the United States and the United Kingdom. All quotes were adapted for this program and voiced by spotlight. You can hear this program again and read it on the internet at www.radioenglish.net This program is called Hope for the Oceans. Look for our free listening app in the Google Play Store and in iTunes. We hope you can join us again for the next Spotlight Program. Goodbye.