See Candidate Page Julián Castro, Clean Energy, Climate Castro tweets 9/4/19 We need to phase out fossil fuels, including fracking, and transition our economy to be 100% clean and renewable. If we don't get to net-zero, we can't meet the challenge of our climate crisis.Thank you, Sila, for your question and for your advocacy. #ClimateTownHall https://t.co/eWlqGN8bFe— Julián Castro (@JulianCastro) September 4, 2019