See Candidate Page Bernie Sanders, Climate, Iowa Sanders in Iowa 12/15/19 Sanders saying he’s going to end early due to the weather, turns first to climate change, recounting floods, fires, droughts, climate refugees, conflict and war due to climate change. #IACaucus pic.twitter.com/UU3NilV7Ia— Iowa Caucus Info (@IACaucusInfo) December 16, 2019