Our time on Earth could be limited.
Climate change could potentially have the same impact as an asteroid impact that slammed into the Earth more than 60 million years ago.
Co-author Research Associate Dr Andrew Fraass from the University of Bristol said: ‘From this study, it’s reasonable to infer that it’s going to take an extremely long time – millions of years – to recovery from the extinction that we’re causing through climate change and other methods.’ The so-called ‘recovery speed limit’ has been observed across the fossil record, from the Great Dying that wiped out nearly all ocean life 252 million years ago to the massive asteroid strike that killed all non-avian dinosaurs.Mr Fraass and US colleagues looked at the last change and they suggested that evolution could be the cause of such slow recovery, rather than environment.
Paleoceanographer Research Associate Christopher Lowery at the University of Texas Institute for Geophysics said: ‘The implication should be that these same processes would be active in all other extinctions.The delay in recovery was caused by ‘the dynamics of morphospace expansion’ – a theory that explains how species redevelop broadly and then more specially to ‘fill in the gaps.’
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