President Trump seems to conceive of domestic counter-terrorism efforts as analogous to a police roadblock. Potential terrorists, like vehicles, wait in single file, pull up to the checkpoint, are evaluated, and either stopped or allowed to proceed depending on whether they pose a threat. If only our vetting can be made “extreme” enough, we can apprehend those intending us harm.

“We are seeing floods, droughts, extreme weather events, migration of people across borders, as well as sea-level rise, and we are going to see increasing challenges,” says Wilson Center Senior Fellow Sherri Goodman in an interview with the German think tank, adelphi.

The effects of climate change combined with breakdowns in governance are leading to food insecurity “on a scale that we’ve rarely seen,” said Alex de Sherbinin, associate director of Columbia University’s Center for International Earth Science Information Network, at the Wilson Center on January 26.

Large-scale land acquisitions, otherwise known as “land grabbing,” are often believed to lead to resistance from affected local communities. According to an article by Ruth Hall et al. in The Journal of Peasant Studies, however, “political reactions ‘from below’ to global land grabbing have been vastly more varied and complex than is usually assumed.”

In the first half of last year, 26,000 unaccompanied children were apprehended by U.S. law enforcement trying to cross the southern border. Most came from Central American states like El Salvador, Guatemala, and Honduras. Such displacement is just the tip of the iceberg in terms of migration in the region. Many more are moving from rural to urban areas and into neighboring countries seeking opportunity and fleeing violence.

During the 2016 campaign President Trump stated that clean water would be a top priority of his administration, telling ScienceDebate.org “it may be the most important issue we face as a nation for the next generation.” Now is the time to make good on that commitment.