See Candidate Page Beto O’Rourke, Climate Climate tweets on O'Rourke 6/5/19 .@BetoORourke's climate plan calls for the U.S. to reach net-zero emissions by 2050 — is it aggressive enough? https://t.co/aYIcGo5zvO pic.twitter.com/wOwnbMYndq— CBS News (@CBSNews) June 6, 2019