I can empathise with Wookie here, though I believe he still has me ignored so he won't enjoy the anomaly.
You're assuming that the thought process of 'liberals' here is:
"
I want a global government! Ahah, climate change is something I can exploit!"
I really don't see evidence of anyone adopting that position (though it would make sense for modern day communist parties to try to do that, but they're too busy bickering within themselves to do anything that clever). The reverse is sort of true, though.
No single country
wants to reduce CO2 emissions. At the moment, there are indeed many alternate technologies and sensible investment in these technologies could make a lot of money, in the long term. Any CO2 reduction will have an immediate effect on GDP, and no country in the world wants to be the first to take that hit - especially in the current economic climate. If the US unilaterally cuts CO2 emissions, suffers an economic hit, then China could capitalise on that and fill whatever industry is left. This makes China even stronger economically, the US suffers even more, and it makes China even more reluctant to cut CO2 emissions.
This is a bad thing, both for the US domestically and for global climate change. No-one wants that, and so we're left in the stalemate that we are now. Sure, the US and China could come up with some sort of agreement between them, but then India or Brazil would exploit that.
The only way to prevent global climate change is with an international treaty. This does
not involve global wealth redistribution, just an agreement on CO2 emissions.
Global wealth redistribution
does come into play if we
don't prevent global climate change. If we do nothing about CO2 emissions and continue to affect the climate in the same way we are now, then millions - eventually billions - of people will be displaced by severe droughts, food shortages, and rising sea levels. The US will suffer more severe hurricanes and floods, but the most severely affected regions will be Africa and South East Asia.
The
IPCC Climate Change 2007 report studied the impact of global climate change and found that
- 75-250 million people across Africa could face water shortages by 2020
- Crop yields could increase by 20% in East and Southeast Asia, but decrease by up to 30% in Central and South Asia
- Agriculture fed by rainfall could drop by 50% in some African countries by 2020
- 20-30% of all plant and animal species at increased risk of extinction if temperatures rise between 1.5-2.5C
- Glaciers and snow cover expected to decline, reducing water availability in countries supplied by melt water
And the first question that will be asked in 2020 is "
whose fault is this?", and see that the US is responsible for 20% of the world's CO2 emissions, China is responsible for 20% as well, and EU is responsible for 13% - all emissions vastly disproportionate to population. These people will need vast amount of aid, and will need aid for a very long time. Many of them will need somewhere to live, and the political impetus will be on the biggest polluters to accept climate refugees - millions of new immigrants to the US, China and EU over the next 50 years. This is already happening
right now, not in some dystopian future.
Wookie's fear of global wealth (and people) redistribution pretty much becomes a reality if we
don't prevent global climate change.
...however, even when this is all happening, I imagine the climate deniers will be ever more vocal changing tack from "
this will not happen!" to "
this is not our fault!".