1 No - but my neighbors started a home energy audit company, and I know that most houses have a lot of leaks, or inefficient gas furnaces. They were able to pick up on that. If you're interested and in North Jersey, the address is homeenergymatters.com .
It's not an "energy source" per se - but a savings of about 90% during the right conditions.It's pretty easy to use. I have a heat pump at my house, so before the swamp cooler, I had a Fan, then a coil, - the fan blew through the coil into the house - in the winter, the coil has hot, pressurized refrigerant and in the summer, cold, liquid refrigerant. Running the AC is expensive though and I wanted to save a lot.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.