Economies are growing rapidly across the developing world, which is producing a dramatic increase in energy demand. A central challenge facing leaders is how to meet that growing demand — and deliver electricity to the nearly 1 billion people who still lack it — while also phasing out the power source that is a primary driver of climate change ...

  A new study that mined health records from the Department of Veterans Affairs hints that the drug Paxlovid might be useful in preventing long Covid. Scientists have been urging the government and the drug’s manufacturer, Pfizer, to study the idea that lingering virus could be the culprit behind some people’s long-term symptoms, and finally having data is a welcome ...

  Restructuring is a horrible time for the staff of any company, but it’s also an opportunity to concentrate on what reliably makes money. Elon Musk has made cuts so deep at Twitter Inc. that his team has started asking dozens of workers to return after being laid off last Friday, when about half of them were shown the door. ...