One of the best pieces of news in years is that China’s finally getting serious about cleaning up its environment. Renewable energy use is growing rapidly while coal use is declining. Air pollution targets are being tightened. Contaminated farmland is finally getting high-level attention. Yet all that good could be undermined if China simply exports its environmental problems elsewhere. A …

Beneath a photograph of an AR-15 with all the trimmings, an online petition calling for the open carry of firearms at the Republican National Convention in Cleveland in July (and possibly intended as parody) has acquired more than 40,000 signatures. USA Today reported that the petition is “of unknown origin.” Because extreme gun culture excels at self- parody, it’s dangerous …

BLOOMBERG Oil led commodities lower, pulling down the currencies of raw-material producing nations and helping lift government bonds. Futures on the Standard & Poor’s 500 Index retreated as crude slipped through $39 a barrel in New York in a fourth day of losses. Euro-area sovereign securities climbed as lower energy prices dimmed the outlook for inflation and the European Central …