I'd guess he's talking about this: http://ec.europa.eu/clima/policies/ets_en http://ec.europa.eu/clima/policies/ets_en P.S. I agree about the comment regarding

I'd guess he's talking about this: http://ec.europa.eu/clima/policies/ets_en http://ec.europa.eu/clima/policies/ets_en P.S. I agree about the comment regarding negative externalities not being accounted for unless something like this is in place.