Share this on WhatsApp Massive wildfires that raged across southeast Australia in 2019–20 unleashed chemicals that chewed through the ozone layer, expanding and prolonging the ozone hole. A study, published today in Nature, describes how smoke combined with chlorine-containing molecules in the stratosphere — remnants of chemicals that are now banned — to cause the destruction. […]
Share this on WhatsApp If everyone had to rely on flash memory—the data-storage system used in memory cards and thumb drives—the amount of information that the world is estimated to produce by 2040 would exceed the planet’s expected supply of microchip-grade silicon by up to 100 times. To prevent such a crisis, researchers have been […]
Share this on WhatsApp Earlier this month the U.S. Centers for Disease Control and Prevention recommended a pause in the use of the Johnson & Johnson (J&J) COVID-19 vaccine following reports that, within two weeks of getting it, six women developed blot clots, and one of them died. About 6.8 million people had received that […]