Pay it forward

There should be plentiful government investment, grants, and subsidies for development and deployment of renewable energy. There is no problem with increasing the national debt due to this: the debt should be paid off by our children who will directly benefit from the better world we leave them, both in the reduced greenhouse gases and in the developed technology. There is no need for renewable energy sources to be economically competitive with conventional sources; it's an apples-to-oranges comparison.