My fear is that once people figure out how to Geo-engineer things with fine tuned results that it will eventually be used as a weapon.
Imagine if you could turn up the temperature of an area to create a drought?
Or flood/freeze out an area?
This could be done covertly as it would be hard to identify the exact cause if done under the 'radar'.
No bomb shells or traces left behind to place blame.
I'll pass on homo-sapiens ego presuming they are smarter than the planet and can fix any problem using technology and our brains.
Maybe for the first time in History we may be smart enough to mitigate the potential ill effects of the climate cycle, however this planet was here long before humans and will probably be here long after.
There was a joke once, about human's being the planets Herpes, which seems to be a good metaphor for our existence on this rock.
https://en.wikipedia.org/wiki/Environmental_Modification_Con...
To restate I am all for being able to help the planet, mitigate our impact using new greener technologies and changing our habits, however this needed to be done a long time ago and trying to fix our current problems with the band-aide of Geo-engineering I personally believe is a futile effort.
As the water level rises we're gonna need to lose some of the cynicism around geo-engineering.
Unless you're convinced that society will somehow value the stability of our climate over economics? I feel like there's more evidence (given our snail-like progress over the past few decades) to demonstrate that's a not gonna work out compared to attempting _some_ form of geo-engineering.