REGULATION: Social cost of carbon gets its day in court in Minn. Jeffrey Tomich, E&E reporter Published: Friday, September 5, 2014 The federal government's social cost of carbon values is going on trial in Minnesota. Please subscribe to EnergyWire to read the full story. Username: Password: Forgot your access codes? Recover them. Not a subscriber? Sign up for a trial. Ready to subscribe? Click here.