Carbon is bogus cash crop for Oklahoma farmers

Carbon is cash crop for Oklahoma farmers | NewsOK.com

The current market rate for a ton of carbon is about $4 per ton on the Chicago Climate Exchange.

That's because the market is voluntary. In some other countries, like those in the European Union, governments have placed mandatory caps on carbon emissions. Companies must trade emissions credits to stay legal.

In those regulated markets, the price of carbon is much higher than in the United States. Carbon is at nearly $40 per ton on the European market, for example.