News That Matters

Tag: source

Researchers find the source of black carbon in the Arctic

Researchers find the source of black carbon in the Arctic

Science
Feb. 15 (UPI) -- When black carbon coats the surface of snow and ice in the Arctic, it reduces the surface's reflectivity, causing the snow and ice to absorb more of the sun's energy, amplifying melt rates and accelerating global warming. Now, scientists have an accurate picture of where most of the Arctic's black carbon comes from. The soot that falls as black carbon is produced by wildfires, diesel engines, kilns and wood burning stoves. To better understand where the region's black carbon deposits originate from, scientists conducted a chemical analysis of soot samples from across the Arctic. By measuring the isotopic ratios in the black carbon samples, researchers can determine during which season it was deposited and where it came from. "The significance of studying atmospheric poll...
Scientists sound alarm over radiation in crucial Middle East water source

Scientists sound alarm over radiation in crucial Middle East water source

Technology
This is an Inside Science story. People in Egypt's western desert are drinking groundwater with naturally high levels of radium, a radioactive element, according to research presented last week at the American Geophysical Union meeting in Washington. Experts disagree on the cancer-related health risks, but babies who rely on the most radioactive wells could get more than 100 times the maximum levels recommended by the World Health Organization for long-term exposure from drinking water, according to the researchers. Many communities across the Middle East and northern Africa are likely also using water with elevated levels of radiation. Identifying the danger Most people in Egypt get their water from the Nile River. But in the adjacent deserts and the Sinai Peninsula, people rely inste...
Turkish source says Pompeo heard recording of Khashoggi murder, State Dept denies

Turkish source says Pompeo heard recording of Khashoggi murder, State Dept denies

World
Secretary of State Mike Pompeo has heard an alleged audio recording of Washington Post columnist Jamal Khashoggi's murder inside the Saudi consulate in Istanbul, according to a senior Turkish official. Speaking exclusively and on condition of anonymity to ABC News, the official claimed the recording was played in meetings in Turkey on Wednesday, and that Pompeo was given a transcript of the recordings. Separately, ABC News has also learned that Turkish officials believe that Khashoggi was killed inside the Saudi consulate following a struggle that lasted eight minutes and that they believe he died of strangulation. The White House referred questions to the State Department which denied Pompeo had heard the recording or seen a transcript. "Secretary Pompeo has neither heard a tape no...
John Oliver, not bots, a source of FCC’s negative net neutrality repeal comments

John Oliver, not bots, a source of FCC’s negative net neutrality repeal comments

Technology
The Federal Communications Commission acknowledged Wednesday that bots were not responsible for the agency's website slowdown after it sought public comment last year on its controversial plan to repeal net neutrality. After people were temporarily unable to contest the proposal, the FCC at the time put out a statement blaming the issue on an "attack" by bots coordinated by "external actors." "Beginning on Sunday night at midnight, our analysis reveals that the FCC was subject to multiple distributed denial-of-service attacks (DDos)," said Chief Information Officer David Bray in the statement. "These actors were not attempting to file comments themselves; rather they made it difficult for legitimate commenters to access and file with the FCC." However, the slowdown was likely due to ...
Source of cosmic 'ghost' particle revealed

Source of cosmic 'ghost' particle revealed

Science
Ghost-like particles known as neutrinos have been puzzling scientists for decades.Part of the family of fundamental particles that make up all known matter, neutrinos hurtle unimpeded through the Universe, interacting with almost nothing. The majority shoot right through the Earth as though it isn't even there, making them exceptionally difficult to detect and study.Despite this, researchers have worked out that many are created by the Sun and even in our own atmosphere. But the source of one high energy group, known as cosmic neutrinos, has remained particularly elusive.Now, in the first discovery of its kind, it turns out that a distant galaxy powered by a supermassive black hole may be shooting a beam of these cosmic neutrinos...