I'm Surprised It's As Much As That!

A 'Frontiers in Forests and Global Change' paper claims that 3% of the world's land now remains 'ecologically intact' (https://www.theguardian.com/environment/2021/apr/15/just-3-of-worlds-ecosystems-remain-intact-study-suggests). The paper suggests this 3% includes areas of the Amazon; Congo tropical forest; East Siberia; Northern Canadian forests and the Sahara. I suppose it depends on what they mean by 'ecologically intact'? There must be no areas of the globe, however remote, that are not disrupted by human activities. Climate change, introductions of alien species, micro-plastics etc have all had their impacts world-wide. There might be some possibility of improving the ecologies of some land-based locations, by careful reintroductions of 'missing species' (as suggested in the paper). It won't, however, convert these areas back to anything like a pristine condition. Things are only likely to get more problematic for ecosystems.