Let’s be clear: America is an undertaxed society. Our wants and needs from government — the two blur — exceed our willingness to be taxed. This has been true for decades, but it’s especially relevant now because the number of older Americans, who are the largest beneficiaries of federal spending, is rising rapidly. Unless we’re prepared to make sizable …

  A third strongman has managed to do what the two before him couldn’t: Sever the link between the stock markets of China and India. The correlation between the CSI 300 and the Nifty 50 indexes survived Xi Jinping’s ascent to power in 2012 and Narendra Modi’s election in 2014. Donald Trump, however, has succeeded in driving through a wedge. …

  Smokestacks and tailpipes may be the biggest and most obvious sources of greenhouse gases, but they’re not the only ones to worry about. An invisible, underappreciated one is right in America’s front yards: leaking pipes that carry natural gas into people’s homes. The good news is that scientists have devised a clever way to find these leaks, by attaching …