See Candidate Page Pete Buttigieg, Climate, National Security Climate tweets on Buttigieg 4/14/19 “No region of our country is immune to that threat.”@PeteButtigieg called climate change the “biggest security issue of our time” at his 2020 announcement event in South Bend, IN #tictocnews pic.twitter.com/W89pBLpaRS— Bloomberg Originals (@bbgoriginals) April 15, 2019