The driver for political change in places where there already exists an entrenched energy infrastructure that stands to suffer great loss of value is going to be economics. The "low hanging fruit" you speak of is, at this point in time, nothing more than growth in manufacturing capacity and its associated supply chain. As that supply chain matures and expands by serving the developing world where it is not in competition with forces that
already own the market it will create a new group of economic "winners" - including a general public free of the need to purchase fuel every day.
The more of these new winners there are, the greater their political power will be and the more the power of the entrenched interests will be eroded.
There is evidence to support your view of how the effects of climate change will manifest themselves and it is pretty strong. However whether your characterization is accurate or not isn't really relevant as it isn't going to drive the process. After all, even in the countries marked by what you term "widespread scientific literacy and a confidence in government" it hasn't been particularly successful. While the pace of change might be better than the US, it is not even close to being rapid enough to address the problems we facing. Let me give you some concrete evidence of the difference these two approaches yield.
In 2003, this is way renewable deployment under the influence of policies like Kyoto was envisioned by DOE's National Renewable Energy Lab:
Solar electricity will eventually contribute a significant part of our electricity supply, but the industry required to produce these systems must grow more than tenfold over the next 10 years. In 2001, about 400 megawatts of solar electric modules were produced worldwide. According to an industry-planning document, in order to supply just 10% of U.S. generation capacity by 2030, the U.S. solar electricity industry must supply more than 3,200 megawatts per year. Most experts agree that with continued research, solar electric systems will become more efficient, even more reliable, and less expensive.
http://www.nrel.gov/docs/fy03osti/32529.pdfThey said we need 3200MWp to produce 10% of US electricity by 2030 (MWp denotes manufacturing capacity to produce the panels)
China built 17000MWp of solar between 2007 and 2010 and they are doubling that this year.
As a direct result of the economically motivated actions in China we have this economic response in the US:
25.9 GW US solar either installed, being installed or in their development phase since 1/1/2010.U.S. Solar PV Pipeline Up to 24 GW
September 12, 2011
...According to a recent report by SolarBuzz, the 17 gigawatts (GW) of non-residential PV under development have now grown to 24 GW, largely because of the continued drop in module prices throughout the summer.
The September 2011 edition of the United States Deal Tracker database released by Solarbuzz this week identifies 1,865 non-residential projects totaling 25.9 GW either installed, being installed or in their development phase since January 1, 2010.
According to the report:
-California, which currently accounts for 61 percent of the total U.S. project pipeline, has benefited from the state’s aggressive 33 percent Renewable Portfolio Standard target and the recent trend of solar projects switching from concentrated solar power technology to PV. The top six state pipelines measured in megawatts are California, Arizona, Nevada, Texas, New Jersey and New Mexico. In total, 44 states now contribute to the pipeline.
-Utility-driven project activity is identified across 35 states, while other non-residential projects below 1 MW account for 771 projects being monitored.
-The fast-developing ...
http://www.renewableenergyworld.com/rea/news/article/2011/09/u-s-solar-pv-pipeline-up-to-24-gw?cmpid=SolarNL-Tuesday-September13-2011 http://www.democraticunderground.com/discuss/duboard.php?az=view_all&address=115x310838#310838See also:
With DoE, DoD Backing SolarStrong to Double US Home Solar Powerhttp://www.democraticunderground.com/discuss/duboard.php?az=view_all&address=115x310451DOE Supports Project to Cut Silicon Solar PV Wafer Costs 50% http://www.democraticunderground.com/discuss/duboard.php?az=view_all&address=115x310454wind industry installed equivalent of 1.2 nuclear power plants/mo over the past 2 yearshttp://journals.democraticunderground.com/kristopher/683Renewables Investment Breaks Records (2010 up 32% over 2009)http://journals.democraticunderground.com/kristopher/738Some revealing numbers (Italy)http://journals.democraticunderground.com/kristopher/744U.N. Secretary-General: Renewables Can End Energy Povertyhttp://journals.democraticunderground.com/kristopher/763