This data-file tabulates the costs of carbon offsets that are being offered to consumers and commercial customers, by 17 companies. Offered carbon offset costs are surprisingly low.
Are they real? The file also tabulates 1,600 carbon offset projects which are assured by agencies such as the ‘Verified Carbon Standard’, Gold Standard and Green-E. This helps lend credibility to the companies in the data-file.
However, we estimate only c10-20% of the projects directly offset CO2 through planting new forests, another c15-30% are spent on forest conservation, and the remaining 50-70% are broader (i.e., charitable donations to finance renewable energy projects).