Only recently I vouched for nuclear energy for the economic development
I had also talked about the way developed countries are moving to renewable energies and one good example is Japan who have been pioneers in nuclear energy but after Fukushima they have been going all solar.
Geo engineering has been about adapting technology to reduce the impact of climate change on the environment.
I found this interesting article on how Japan is proposing to geo engineer to enhance solar power.
this is why i believe developed countries will be the main drivers in renewable energy.