1. significantly increased amount of 'life' on earth (as in: total kg of biomass, number of living specimens, total area with some amount of green stuff on it) due to warmer climate.
2. significantly reduced number of extant species on earth due to (geologically) fast changes in climate.
This seems to be a slightly shortened version of an earlier article by the same author. The swiss weekly magazine "Das Magazin" published a german translation of this longer version in 2019 [1]. It is an absolutely fascinating read.
Since the article from OP is relatively short on images, the following are links to more images from the german article, with captions translated into english. Warning: images contain depictions of the medical condition discussed in the article. YMMV, but i don't consider them 'gross' or NSFW.
1. significantly increased amount of 'life' on earth (as in: total kg of biomass, number of living specimens, total area with some amount of green stuff on it) due to warmer climate.
2. significantly reduced number of extant species on earth due to (geologically) fast changes in climate.
Edit: formating.