See Candidate Page Julián Castro, Climate Climate tweets on Castro 9/19/19 The #ClimateCrisis is a humanitarian crisis - “it affects the poorest, most vulnerable communities who are least able to deal with it the most” @JulianCastro with @AliVelshi on @MSNBC #ClimateForum2020 pic.twitter.com/XJGqGPgPMf— Our Daily Planet (@ourdailyplanet) September 19, 2019