On species extinctions, you cite the Thomas et al estimate that climate change would cause “15-37% of all species to become ‘committed to extinction’ by mid-century”. This paper has been subject to an avalanche of criticism. For example, there is a good review here, and strong counter-evidence discussed at length here. I think it would be useful to the reader to provide this context.
Also, this is just one study (also the most pessimistic), and I think one would get a better view by providing an overview of the literature. The IPBES report that you also cite says “For instance, a synthesis of many studies estimates that the fraction of species at risk of extinction due to climate change is 5 per cent at 2°C warming, rising to 16 per cent at 4.3°C warming {4.2.1.1}.” 4.3 degrees is the median outcome at 2100 on the high emissions pathway. Being committed to extinction is also very different to being at risk of extinction. This suggests that the risk is a lot lower than the Thomas et al estimate suggests.
On species extinctions, you cite the Thomas et al estimate that climate change would cause “15-37% of all species to become ‘committed to extinction’ by mid-century”. This paper has been subject to an avalanche of criticism. For example, there is a good review here, and strong counter-evidence discussed at length here. I think it would be useful to the reader to provide this context.
Also, this is just one study (also the most pessimistic), and I think one would get a better view by providing an overview of the literature. The IPBES report that you also cite says “For instance, a synthesis of many studies estimates that the fraction of species at risk of extinction due to climate change is 5 per cent at 2°C warming, rising to 16 per cent at 4.3°C warming {4.2.1.1}.” 4.3 degrees is the median outcome at 2100 on the high emissions pathway. Being committed to extinction is also very different to being at risk of extinction. This suggests that the risk is a lot lower than the Thomas et al estimate suggests.