A meta-analysis of a large number of climate models came up with a mean estimate of USD 129 per tC02 for 2025. Again, such numbers resulting from very high-level top-down models must be taken with great caution. Let it just be said that their order of magnitude is comparable to that of estimates of the social costs of carbon, which supports the 2°C objective. The appropriate price of C02 emissions must drive a wedge between the costs of fossil fuel-based power generation and generation with low-carbon technologies such as nuclear, hydro and renewables.