It’s Time to Upgrade Your Mask, Experts Say. Here’s Why

With the rapid spread of Omicron, many countries are rethinking their COVID mask advice for the community. Respirators have been mandatory in public places in Austria for a year. Now, the United States Centers for Disease Control and Prevention suggests respirators be considered for greater protection, for instance, on public transport or in enclosed crowded … Read more

Cryptocurrencies: Ethereum delays emissions-slashing upgrade again

Ethereum is using almost as much electricity as Ecuador, according to a new analysis, and a long-awaited upgrade to slash its energy use has been delayed once again Technology 15 December 2021 By Matthew Sparkes A coal-fired power plant in Germany Hans Blossey/Alamy A long-awaited upgrade to the Ethereum network which developers promise will slash … Read more