See Candidate Page Bernie Sanders, Climate, National Security Sanders tweets 2/24/20 I’ve been criticized for being an "alarmist" on climate change.You’re damn right I’m alarmed.Climate change is a major national security threat and a global emergency.That is why we have the boldest plan to address it of any campaign in history. https://t.co/WD4sO5tCSB— Bernie Sanders (@BernieSanders) February 24, 2020