Digest

WASHINGTON — Bill Gates will announce the creation of a multibillion-dollar clean energy fund on Monday at the opening of a Paris summit meeting intended to forge a global accord to cut planet-warming emissions, according to people with knowledge of the plans. The fund, which one...

Drone maker Parrot's new flying gizmo, the Bebop 2 Quadricopter drone, will make its landing next month, just in time for holiday shoppers. According to the company, it’s a smaller, lighter, and easier-to-use model than the previous Bebop drone—which should please consumers interested in tossing...

Silicon Valley efforts in the biology and health domains have recently seen increased public interest because of the questions around the legitimacy of Theranos’ technology and medical claims and the recent FDA approvals for a number of 23andMe’s genetic screens. These data points are just two...

To study the graph of Amazon’s stock performance in 2015 is to witness a series of stepwise lurches toward commanding new heights. Over all, the stock market has been flat this year, and technology companies, as a group, haven’t fared much better. Then there’s Amazon, which...

VINCE VANNELLI’S flat tire came at a bad time — just as he was on his way to the San Francisco airport for a flight to Los Angeles. He parked his Tesla, jumped in an Uber car and contacted Tesla service. Once in Los Angeles, Mr....

SAN FRANCISCO — The worth of hot technology start-ups seemed for years to go in only one direction: straight up. Now there are signs of growing unease over the dizzying valuations of some of the most richly priced private companies....