[kaybe]

Until the payment actually leads to the carbon being captured and stored again (or the kerosine is from renewable sources) nothing much is won.

[tunesmith]

There are plenty of organizations that track this and make sure the advertised offsets are not wasteful in this manner.

[xnx]

This is key. Carbon has to get out of the air and go back in the ground.

[amelius]

How is the carbon tax rate derived then?