THE BEST

Shark Populations Dropped 71 Percent Since 1970 Scientists have known for decades that the numbers of some shark  species  are decreasing. But a new study shows just how severely worldwide populations have dropped in the past 50 years. The numbers of oceanic sharks and rays fell more than 70 percent worldwide between 1970 and 2018. The information comes from a study that appeared recently in the publication  Nature . Stuart Sandin is a marine biologist who works at the Scripps Institution of Oceanography. He says that sharks are great hunters, fast swimmers, and have extraordinary senses. Sandin adds that they can identify any changes in the ocean from a great distance, such as smells or tiny changes in water flow. Their ability to quickly sense anything outside the norm in their environment helps them find food in the open ocean. But it also makes them especially at risk in the face of increased international fishing pressure. “You drop a fishing line in the open ocean,...

From VOA Learning English, this is the Health & Lifestyle report. When Dr. Stanley Fineman started as an  allergist , he told patients to start taking medications and prepare for  pollen  season in the middle of March. That was about 40 years ago. Today, he tells them to start around the middle of February. Since 1990, pollen season across the United States and Canada has been starting earlier, about 20 days earlier. And pollen loads, the amount of pollen released by plants, are 21 percent higher. The main reason for this, a new study found, is global warming. Other studies have shown North America’s allergy season getting longer and worse. But this one, published in the  Proceedings of the National Academy of Sciences , has the most complete information coming from 60 reporting stations. It is also the first study to make scientific connections between an earlier and more intense pollen season with human-caused climate change. The study says the warmer the E...

Scientists Study How Ocean Seagrasses Can Fight Climate Change   Scientists say ocean seagrasses can be a valuable tool in fighting climate change. But many of these plants are being harmed by pollution linked to human activities such as mining and fishing. In March, scientists went on an  expedition  to an area in the Indian Ocean thought to contain the largest field of underwater seagrass in the world. The team collected data to learn more about what affects the health of seagrasses. Studies have shown that a big  benefit  of seagrass is that it can store up to two times the amount of carbon that forests do. If seagrasses can stay healthy and grow, they can remove carbon dioxide, or CO2, from the environment. CO2 is one kind of  greenhouse gas  that scientists have linked to rising temperatures in Earth’s atmosphere. Blades of seagrass float in the ocean above the world's largest seagrass meadow and one of the biggest carbon sinks in the high seas, ...

  Khmer nationalism From Wikipedia, the free encyclopedia Jump to navigation Jump to search Flag of Cambodia Khmer nationalism or Cambodian nationalism (Khmer: ជាតិនិយម, Chéat Nĭyôm) is a form of nationalism found in Cambodia, which asserts that Cambodians are a nation and that promotes the cultural unity of the Cambodian race. Contents 1 "Young Monks" Movement 2 Emergence of Khmer nationalism 3 Khmer Nationalism and Buddhism 4 Khmer Rouge "Young Monks" Movement Another division in the Cambodian sangha can be seen in what has been called the "young monks" movement, a small group of politically active monks (primarily Maha Nikaya) voicing public opposition to the current government. The "young monks" are primarily junior members of the clergy, drawn from temples in and around Phnom Penh. Unlike the Engaged modernists, their interest is not in using the authority of the sangha to aide social development programs, but rather to express direct opposi...

  The  National Museum of Cambodia   ( Khmer :  សារមន្ទីរជាតិ ,  French :  Musée national ) is  Cambodia 's largest museum of cultural history and is the country's leading historical and archaeological museum. It is located in  Chey Chumneas ,   Phnom Penh . Contents 1 Overview 2 History 3 Collections 4 Gallery Overview The museum houses one of the world's largest collections of Khmer art, including sculptural, Khmer ceramics, bronzes, and ethnographic objects. Its collection includes over 14,000 items, from prehistoric times to periods before, during, and after the Khmer Empire, which at its height stretched from Thailand, across present-day Cambodia, to southern Vietnam. The National Museum of Cambodia is located on Street 13 in central Phnom Penh, to the north of the Royal Palace and on the west side of Veal Preah Man square. The visitors' entrance to the compound is at the corner of Streets 13 and 178. The Royal University of Fine Arts is...

  Education   Universities and colleges Buddhist Institute Royal University of Phnom Penh Campus II Institute of Foreign Languages Institut de Technologie du Cambodge English Khmer University of Cambodia (UC) សាកលវិទ្យាល័យកម្ពុជា Phnom Penh International University (PPIU) សាកលវិទ្យាល័យភ្នំពេញអន្តរជាតិ École Royale d'Administration (ERA) សាលាភូមិន្ទរដ្ឋបាល Royal University of Phnom Penh (RUPP) សកលវិទ្យាល័យភូមិន្ទភ្នំពេញ Royal University of Law and Economics (RULE) សាកលវិទ្យាល័យភូមិន្ទនីតិសាស្រ្ត និង វិទ្យាសាស្រ្តសេដ្ឋកិច្ច Royal University of Fine Arts (RUFA) សាកលវិទ្យាល័យភូមិន្ទវិចិត្រសិល្បៈ Royal University of Agriculture (RUA) សាកលវិទ្យាល័យភូមិន្ទកសិកម្ម National University of Management (NUM) សាកលវិទ្យាល័យជាតិគ្រប់គ្រង Institute of Technology of Cambodia (ITC) វិទ្យាស្ថានបច្ចេកវិទ្យាកម្ពុជា Buddhist Institute វិទ្យាស្ថានពុទ្ធសាសនបណ្ឌិត្យ Royal Academy of Cambodia រាជបណ្ឌិត្យសភាកម្ពុជា Cambodian Agricultural Research and Developme...