The equivalent of one garbage truck full of waste plastic is dumped into the world’s oceans every minute – or 8 million metric tons a year. New research suggests that the vast majority of that waste is transported to the oceans by just a handful of major river systems – and tackling the pollution at source would go a long way to cleaning up our seas. Henry Ridgwell reports from London.
The U.S. state of California is experiencing its largest person-to-person outbreak of hepatitis A in the United States since a vaccine to prevent the liver disease became available in 1996. More than 600 cases have been reported in the state and 21 people have died. According to the California Department of Public Health, most of those infected are homeless or use drugs. Elizabeth Lee reports from Los Angeles.
Scientists in Hungary have measured brain activity in dogs, which they say shows the animals learn while they sleep. The study is part of broader research to understand how dogs' cognitive ability and memory change with age. As we hear from VOA's Deborah Block, the research may have implications for humans, too.
The oceans and lakes are full of life, and most of it is not visible to the naked eye. In most bodies of water, every cubic centimeter contains many microorganisms — bacteria, zooplankton as well as single-cell plants called phytoplankton — all of them important links in the natural food chain. Scientists are now using satellites to observe and study these tiny creatures. VOA's George Putic reports.
This weekend, TV viewers across America will again be watching advertisements sponsored by major tobacco companies, but quite different from the ones pulled from the airwaves nearly 50 years ago. Instead of attractive people enjoying a smoke, these ads will lay out in plain text and narration the dangers of using tobacco. VOA's George Putic reports.