Just when the European Union seemed to have recovered some of its free-trade zeal, it now faces the prospect of a mutually destructive trade war with its biggest economic partner, the US. Escalation has risks for both sides. The US from counter-tariff measures and the EU from a fragmented response as some member states are tempted to accept US offers ...

The public is set to hear from Mark Zuckerberg soon to address the latest company crisis. Given how Facebook has mishandled its response so far, the company’s boss could use some advice. Here’s what no one needs from Zuckerberg: A pledge to “do better” or an attempt to recast Facebook as the victim of the political consulting firm Cambridge Analytica. ...

Climate change is profoundly unfair: By failing to address it, today’s leaders are imposing what could prove to be an unbearable burden on future generations. But how can they be made to recognize the danger and act? Using the US legal system, a group of children has found a novel way to do so. The 2015 Paris Agreement on reducing ...