Corredor Seco

Phil Laubner / Catholic Relief Services

Last week President Trump threatened to close the U.S. southern border because record numbers of Central American migrants are arriving there – including 100,000 apprehended in March. “I’m not playing games,” Trump warned. “We can’t hold people anymore.”

But what’s lost in Trump’s border-security bluster is that there’s something unusual about this wave of Central American migrants. Most are not from Honduras or El Salvador. Most are instead from Guatemala. And immigrant advocates say the main force driving them to flee here is climate change.