See Candidate Page Pete Buttigieg, Climate, Iowa Climate tweets on Buttigieg 4/16/19 NEW: @PeteButtigieg calls for * a carbon tax, * and $10 billion in spendingto fight climate change. Here's the full transcript of ihs plan. pic.twitter.com/zP4Jw1GZ7n— Marcus J. DiPaola (@marcusdipaola) April 17, 2019