Mankind is not a threat to the life

Dr Iain Stewart in Sun 30 Dec The Power of the Planet cleared up something for me. Despite being aware of the destructive effect that mankind has been having on the planet, it did not escape my attention that regarding CO2 even if we burn all the fossil fuels and release all the stored C it will only put atmospheric CO2 levels back to the carboniferous (300 million years ago). In other words the planet has been here before.

Dr Stewart went further... there is nothing we can throw at the Earth which is beyond it. The planet and Life have been through all this before and bounced back. The issue for him then not the planet or life in general but only the current state and thereby ourselves since we are dependent on a qite narrow range of conditions.

I'm a member of many conservation groups. Its not that mankind's activities challenge Life in any broad sense, only that we are having defining effects on the current state of life and seeking to preseve what we've got is like preserving anything we value. However its not a fundamental requirement, Life will bounce back in some form whatever happens.

There is a self-reference issue here also. Mankind is part of life, so then what he does is part of life also... OR mankind is outside life and so he can make choices about it... which is the determinism and free-will problem also... a dis-proof of determinism would be self-referential then like...if everything was determined then we would be determined to choose determinism or free-will and so our knowledge of it is no longer truth since we can't be wrong.

There's a lot to this self-reference thing... i was hoing to have it sorted by the new year...