Jeff Bezos is stepping down as chief executive of Amazon. AMZN 1.11% com Inc. to become executive chairman, marking the biggest change in leadership of the tech giant since he started it in a Washington…

Timetables for vaccinating enough people to effectively curb Covid-19 are slipping in many countries, raising fears that a large portion of the world will still be battling the pandemic and its economic effects well into 2022 or…

The biggest threat to the global economy in a century is mutating—literally. More-virulent and potentially deadlier variants of Covid-19 first identified in Britain, South Africa and Brazil are spreading, just as the rollout of vaccines…

The auto industry’s quickening shift to electric cars is spurring investment in another emerging industry in the U.S.: manufacturing lithium-ion batteries for those vehicles. China currently dominates the market for producing electric-vehicle batteries. But as…

HONG KONG—President Biden has said he plans to work with allies to keep pressure on China, but at the World Trade Organization the U.S. will be facing a rival in Beijing that has become a…

OVER THE EAST CHINA SEA—“Go back,” the Chinese air controller warned. “You are now approaching Chinese airspace. Turn around immediately or you will be intercepted.” The crew of the B-52 lumbering 100 miles off China’s…

Access to Covid-19 testing remains limited in many lower-income areas of the U.S. nearly a year into the pandemic, complicating efforts to contain the spreading virus. Nearly 20% of U.S. counties, or more than seven…

WUHAN, China—In the original center of the coronavirus pandemic, there is a monument to China’s fight against Covid-19. The former site of an emergency field hospital that treated hundreds of patients at the peak of…

When the daily demands of pandemic management subside, researchers will want to survey the damage wreaked by Covid-19 and assess how health-care systems and policy makers responded to the scourge. The exercise will help prepare…

JOHANNESBURG—Three new laboratory studies are raising concerns that the immune response triggered by a Covid-19 infection or vaccination may be less effective at protecting against the new strain of the coronavirus that first emerged in South…

Influenza, usually raging throughout the Northern Hemisphere this time of year, has become virtually invisible. It is a small bright spot amid Covid-19, although the number of people saved from a flu death pales next…

WASHINGTON— Joe Biden was sworn in as the 46th president of the United States on Wednesday, calling for unity as he assumed leadership of a nation battered by a once-in-a-century pandemic and the recent deadly…

WASHINGTON— Joe Biden is set to become the 46th president of the U.S., assuming charge of a nation ravaged by a pandemic and shaken by the recent storming of the U.S. Capitol, where he plans…

BEIJING—China’s geopolitical rise over the past four decades has been fueled by sizzling economic growth that regularly featured years of double-digit percentage-point gains. In 2020, China advanced its aspirations by simply emerging with its growth…

Oil and gas prices are rebounding from their pandemic lows, but the road ahead for the industry remains challenging amid new competitive threats and demands from investors. Global spending on oil and gas production is…

Rising temperatures last year capped the world’s warmest decade in modern times, federal climate scientists said Thursday. In a new climate study, the National Aeronautics and Space Administration ranked 2020 in a dead heat with 2016…

Iran has taken a significant new step toward possible atomic-weapons production, starting work on an assembly line to manufacture a key material used at the core of nuclear warheads, the United Nations atomic agency said…

With rioters ransacking the Capitol, Rep. Jim Himes hunkered in the visitors’ gallery overlooking the House chamber. He watched colleagues below rush to exit the floor, heard the reverberation of a single shot from somewhere…

A new army of social media-enabled day traders is helping push stocks to records and turning companies into market sensations. As trading by individual investors boomed during the coronavirus pandemic, so has the popularity of…

JAKARTA, Indonesia—Authorities believe they have identified the location of the two so-called black boxes of the Sriwijaya Air jet that crashed into the Java Sea carrying 62 people. Soerjanto Tjahjono, head of Indonesia’s national transportation…