Models of global warming have a large range of predictions, from mild to dire. Surely our opinions of this subject are just as varied. Should we bet on the low odds & do nothing or should we take action NOW on a global level?
[ 20/May/21 ]
Many other good answers here pointing out aspects of the issues.
There really are not any long term mild predictions at the current rate of CO2 emissions and nothing done to limit it.
The issue is serious, and we have lots of serious issues.
We do need to meet the needs of everyone for water and food. That is urgent, and way ahead of climate change.
And in the long term it is complex, because in relatively recent history there have been ice ages, and we need to avoid those.
So we need to develop technologies that allow us to manage climate, and the technical part of that is not that hard, the real issue is that any technology that powerful can be extremely destructive if used as a weapon.
If anyone is seriously interested in security and freedom, then they need to accept that both are maximised in cooperative contexts.
We need global cooperation between all levels of conscious agents, and cooperation is a very different thing from control.
Cooperation accepts that agency can exist at multiple levels and at every level any real expression of freedom result in diversity.
And all levels of freedom demand responsibility if they are not to self destruct. All levels of structure have need of real limits and boundaries. Any level of freedom that does not respect the boundaries required for its own survival ceases to exist.
So real freedom (the sort that survives in evolutionary contexts) is never without constraints, it always demands responsibility.
And the real issues are deeply more complex than climate change.
Automation is much more of an issue, in the sorts of changes it is necessarily driving.
Fully automated systems fundamentally break market based systems. Few people are sufficiently aware of that as yet, and it is the issue of the coming decades.
So we live in complex times, and there must be a lot of fundamental change if we are to have a long term future, and that is all doable – we just need to do it.
Making it happens demands that:
1/ We accept and respect diversity, all levels.
2/ We cooperate with all those levels and instance of diversity that are not actually a direct threat to anyone else.
3/ We develop global level cooperative systems.
4/ We work towards developing technology that can ensure that everyone has all the reasonably need to do whatever they responsibly choose.
5/ We cooperate to develop technology capable of managing all classes of existential level risk (including meteor strike and climate change).