See Candidate Page Julián Castro, Climate Castro tweets 9/19/19 Students like @israhirsi aren't waiting to lead. They are doing it. Tomorrow's #ClimateStrike will see youth from around the world showing up and speaking out on the urgency of dramatic action on climate.Let's listen to them—and then do something. https://t.co/YLMeIkIVdx— Julián Castro (@JulianCastro) September 19, 2019