carbon offset
noun
- reduction in emissions of carbon dioxide or greenhouse gases made in order to compensate for or to offset an emission made elsewhere
Wiktionary
noun
- A reduction in carbon dioxide emission by a third party purchased by a heavy carbon dioxide producer as part of carbon emissions trading.
“Today, if you want to counter the carbon impacts you create from flying, you too can buy carbon offsets.”
“Carbon offsets do seem to offer the most direct way to assuage traveler’s guilt. In theory, they magically expiate your sins.”