The first (U.S.) carbon tax to reduce…greenhouse gases from imports comes not between two
nations, but between two states. Minnesota has passed a measure to stop carbon at its border with North
Dakota. To encourage the switch to clean renewable energy Minnesota plans to add a carbon fee of between $4
and $34 per ton of carbon dioxide emissions...
Emissions traders expect U.S. carbon market
European Union Greenhouse Gas Emission Trading System (EU ETS)
Unleashes First Carbon Tax in N. America