http://www.york.ac.uk/admin/presspr/pressreleases/massextinctions.htmGlobal temperatures predicted for the coming centuries may trigger a new ‘mass extinction event’, where over 50 per cent of animal and plant species would be wiped out, warn scientists at the Universities of York and Leeds.
The research team has, for the first time, discovered a close association between Earth climate and extinctions in a study that has examined the relationship over the past 520 million years — almost the entire fossil record available.
Matching data sets of marine and terrestrial diversity against temperature estimates, evidence shows that global biodiversity is relatively low during warm ‘greenhouse’ phases and extinctions relatively high, while the reverse is true in cooler ‘icehouse’ phases.
Moreover, future predicted temperatures are within the range of the warmest greenhouse phases that are associated with mass extinction events identified in the fossil record.