The United Nations says #climatechange is happening faster than we thought. Are #carbontaxes part of the solution? And what is a carbon tax anyway? Your students can weigh the evidence and join the discussion on KQED Learn https://t.co/EJaTKhRkza pic.twitter.com/4RkC9mTiye
— KQED Education (@KQEDedspace) December 13, 2018
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