President Donald Trump announced the U.S. would pull out of the Paris Climate Agreement that the Obama administration ratified. As of May 2017, 144 countries had ratified the agreement and 195 countries had signed it.
After the agreement was negotiated, Tower Center Academic Director Jim Hollifield and Tower Center Associate Idean Salehyan wrote an article for the Wilson Center on an unspoken consequence of climate change: the displacement of millions of people.
Read what our experts had to say here.