I do not have a lot of faith in any climate projection. The temprature projections have always been higher than the measured temprature and this model is far more complex. On the other side to be a little hypocritical I would support anything that promotes nuclear power.
Carbon value: Lifetime extensions of nuclear reactors could save billions in climate mitigation costsThey used Global Change Assessment Model 17–20 (GCAM), an integrated global model that incorporates multiple disciplines, such as demographics, economics, energy, agriculture, water, emissions, and climate, into one framework and studied nuclear reactor lifetimes of 40, 60, 80, and 100 years,
https://www.ans.org/news/article-4082/carbon-value-lifetime-extensions-of-nuclear-reactors-could-save-billions-in-climate-mitigation-costs/