US president says he will look for a permanent director ‘with experience in National Security’ after backlash against Bill Pulte’s lacking record

• Sign up for the Breaking News US email

Donald Trump’s immigration crackdown is largely targeting people from the countries most vulnerable to displacement from climate-driven disasters, a Guardian analysis shows.

As the Trump administration pushes policies to boost planet-heating fossil fuels, millions of people are being forced to flee their homelands due to storms, floods and droughts worsened by the climate crisis.